/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-4b0ab11 [2022-03-03 18:37:18,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:37:18,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:37:18,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 18:37:18,271 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 [2022-03-03 18:37:18,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:37:18,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:37:18,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:37:18,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:37:18,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:37:18,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:37:18,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:37:18,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:37:18,296 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:37:18,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:37:18,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:37:18,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:37:18,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:37:18,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:37:18,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:37:18,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:37:18,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:37:18,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:37:18,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:37:18,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:37:18,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:37:18,298 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:37:18,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:37:18,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 18:37:18,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:37:18,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:37:18,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:37:18,482 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 18:37:18,483 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 18:37:18,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl [2022-03-03 18:37:18,484 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl' [2022-03-03 18:37:18,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:37:18,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 18:37:18,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:37:18,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:37:18,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:37:18,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,530 INFO L137 Inliner]: procedures = 2, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 18:37:18,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:37:18,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:37:18,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:37:18,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:37:18,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:37:18,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:37:18,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:37:18,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:37:18,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/1) ... [2022-03-03 18:37:18,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:37:18,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:37:18,566 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) [2022-03-03 18:37:18,582 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 [2022-03-03 18:37:18,601 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 18:37:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:37:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:37:18,602 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2022-03-03 18:37:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2022-03-03 18:37:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2022-03-03 18:37:18,602 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:37:18,635 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:37:18,636 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:37:18,680 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:37:18,684 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:37:18,684 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 18:37:18,685 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:37:18 BoogieIcfgContainer [2022-03-03 18:37:18,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:37:18,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:37:18,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:37:18,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:37:18,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:18" (1/2) ... [2022-03-03 18:37:18,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51290029 and model type sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:37:18, skipping insertion in model container [2022-03-03 18:37:18,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:37:18" (2/2) ... [2022-03-03 18:37:18,698 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_invariant.bpl [2022-03-03 18:37:18,701 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:37:18,702 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:37:18,702 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 18:37:18,702 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:37:18,723 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,724 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,724 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,725 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,727 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,728 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,729 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,730 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,730 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,731 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,731 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,732 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,733 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,734 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,734 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,735 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,737 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,739 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,741 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,742 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,742 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,742 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,743 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,743 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,747 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,749 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,750 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,751 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:37:18,762 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-03-03 18:37:18,802 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:37:18,809 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 [2022-03-03 18:37:18,809 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 18:37:18,819 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 44 transitions, 156 flow [2022-03-03 18:37:18,926 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) [2022-03-03 18:37:18,931 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) [2022-03-03 18:37:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:18,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:18,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:18,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash 121526397, now seen corresponding path program 1 times [2022-03-03 18:37:18,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:18,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699768220] [2022-03-03 18:37:18,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:18,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:19,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:19,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699768220] [2022-03-03 18:37:19,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699768220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:19,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:19,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:37:19,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147602276] [2022-03-03 18:37:19,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:19,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:37:19,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:19,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:37:19,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:37:19,107 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) [2022-03-03 18:37:19,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:19,165 INFO L93 Difference]: Finished difference Result 1329 states and 4322 transitions. [2022-03-03 18:37:19,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:37:19,167 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 [2022-03-03 18:37:19,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:19,188 INFO L225 Difference]: With dead ends: 1329 [2022-03-03 18:37:19,189 INFO L226 Difference]: Without dead ends: 1329 [2022-03-03 18:37:19,190 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 [2022-03-03 18:37:19,192 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 [2022-03-03 18:37:19,193 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] [2022-03-03 18:37:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-03-03 18:37:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1329. [2022-03-03 18:37:19,365 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) [2022-03-03 18:37:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 4322 transitions. [2022-03-03 18:37:19,373 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 4322 transitions. Word has length 26 [2022-03-03 18:37:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:19,374 INFO L470 AbstractCegarLoop]: Abstraction has 1329 states and 4322 transitions. [2022-03-03 18:37:19,374 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) [2022-03-03 18:37:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 4322 transitions. [2022-03-03 18:37:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:19,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:19,378 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] [2022-03-03 18:37:19,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:37:19,379 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:19,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash -75910629, now seen corresponding path program 1 times [2022-03-03 18:37:19,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:19,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886183484] [2022-03-03 18:37:19,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:19,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:19,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:19,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886183484] [2022-03-03 18:37:19,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886183484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:19,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:19,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:37:19,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426769245] [2022-03-03 18:37:19,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:19,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:37:19,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:37:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:37:19,412 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) [2022-03-03 18:37:19,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:19,463 INFO L93 Difference]: Finished difference Result 1114 states and 3592 transitions. [2022-03-03 18:37:19,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:37:19,463 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 [2022-03-03 18:37:19,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:19,471 INFO L225 Difference]: With dead ends: 1114 [2022-03-03 18:37:19,471 INFO L226 Difference]: Without dead ends: 1114 [2022-03-03 18:37:19,471 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 [2022-03-03 18:37:19,476 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 [2022-03-03 18:37:19,478 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] [2022-03-03 18:37:19,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-03-03 18:37:19,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2022-03-03 18:37:19,512 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) [2022-03-03 18:37:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 3592 transitions. [2022-03-03 18:37:19,522 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 3592 transitions. Word has length 26 [2022-03-03 18:37:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:19,524 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 3592 transitions. [2022-03-03 18:37:19,526 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) [2022-03-03 18:37:19,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 3592 transitions. [2022-03-03 18:37:19,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:19,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:19,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:19,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:37:19,534 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:19,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:19,534 INFO L85 PathProgramCache]: Analyzing trace with hash -65705739, now seen corresponding path program 1 times [2022-03-03 18:37:19,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:19,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354586055] [2022-03-03 18:37:19,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:19,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:19,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:19,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354586055] [2022-03-03 18:37:19,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354586055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:19,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:19,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 18:37:19,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187768941] [2022-03-03 18:37:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:19,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 18:37:19,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:19,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 18:37:19,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-03 18:37:19,675 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) [2022-03-03 18:37:19,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:19,869 INFO L93 Difference]: Finished difference Result 1876 states and 5924 transitions. [2022-03-03 18:37:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 18:37:19,869 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 [2022-03-03 18:37:19,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:19,877 INFO L225 Difference]: With dead ends: 1876 [2022-03-03 18:37:19,877 INFO L226 Difference]: Without dead ends: 1614 [2022-03-03 18:37:19,878 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 [2022-03-03 18:37:19,883 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 51 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:19,884 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] [2022-03-03 18:37:19,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-03-03 18:37:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2022-03-03 18:37:19,934 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) [2022-03-03 18:37:19,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 5058 transitions. [2022-03-03 18:37:19,940 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 5058 transitions. Word has length 26 [2022-03-03 18:37:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:19,940 INFO L470 AbstractCegarLoop]: Abstraction has 1614 states and 5058 transitions. [2022-03-03 18:37:19,940 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) [2022-03-03 18:37:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 5058 transitions. [2022-03-03 18:37:19,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:19,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:19,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:19,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 18:37:19,946 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:19,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:19,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2112992439, now seen corresponding path program 2 times [2022-03-03 18:37:19,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:19,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723108636] [2022-03-03 18:37:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:19,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:20,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:20,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723108636] [2022-03-03 18:37:20,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723108636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:20,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:20,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:20,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571446779] [2022-03-03 18:37:20,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:20,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:20,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:20,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:20,072 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) [2022-03-03 18:37:20,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:20,288 INFO L93 Difference]: Finished difference Result 1887 states and 5832 transitions. [2022-03-03 18:37:20,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:20,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:20,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:20,296 INFO L225 Difference]: With dead ends: 1887 [2022-03-03 18:37:20,296 INFO L226 Difference]: Without dead ends: 1628 [2022-03-03 18:37:20,297 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 [2022-03-03 18:37:20,303 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 [2022-03-03 18:37:20,304 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] [2022-03-03 18:37:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2022-03-03 18:37:20,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1508. [2022-03-03 18:37:20,335 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) [2022-03-03 18:37:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 4726 transitions. [2022-03-03 18:37:20,340 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 4726 transitions. Word has length 26 [2022-03-03 18:37:20,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:20,340 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 4726 transitions. [2022-03-03 18:37:20,341 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) [2022-03-03 18:37:20,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 4726 transitions. [2022-03-03 18:37:20,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:20,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:20,344 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] [2022-03-03 18:37:20,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 18:37:20,345 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1975769485, now seen corresponding path program 3 times [2022-03-03 18:37:20,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:20,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561012649] [2022-03-03 18:37:20,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:20,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:20,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561012649] [2022-03-03 18:37:20,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561012649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:20,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:20,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:20,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528781904] [2022-03-03 18:37:20,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:20,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:20,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:20,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:20,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:20,481 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) [2022-03-03 18:37:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:20,679 INFO L93 Difference]: Finished difference Result 1901 states and 5814 transitions. [2022-03-03 18:37:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:20,679 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 [2022-03-03 18:37:20,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:20,686 INFO L225 Difference]: With dead ends: 1901 [2022-03-03 18:37:20,687 INFO L226 Difference]: Without dead ends: 1646 [2022-03-03 18:37:20,687 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 [2022-03-03 18:37:20,687 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 57 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:20,688 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] [2022-03-03 18:37:20,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-03-03 18:37:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1458. [2022-03-03 18:37:20,725 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) [2022-03-03 18:37:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 4554 transitions. [2022-03-03 18:37:20,730 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 4554 transitions. Word has length 26 [2022-03-03 18:37:20,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:20,730 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 4554 transitions. [2022-03-03 18:37:20,730 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) [2022-03-03 18:37:20,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 4554 transitions. [2022-03-03 18:37:20,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:20,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:20,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:20,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 18:37:20,733 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:20,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:20,734 INFO L85 PathProgramCache]: Analyzing trace with hash 202928693, now seen corresponding path program 4 times [2022-03-03 18:37:20,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:20,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325103016] [2022-03-03 18:37:20,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:20,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:20,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:20,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325103016] [2022-03-03 18:37:20,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325103016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:20,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:20,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:20,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550989126] [2022-03-03 18:37:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:20,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:20,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:20,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:20,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:20,821 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) [2022-03-03 18:37:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:21,056 INFO L93 Difference]: Finished difference Result 1678 states and 5178 transitions. [2022-03-03 18:37:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:21,056 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 [2022-03-03 18:37:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:21,062 INFO L225 Difference]: With dead ends: 1678 [2022-03-03 18:37:21,063 INFO L226 Difference]: Without dead ends: 1484 [2022-03-03 18:37:21,063 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 [2022-03-03 18:37:21,063 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 63 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:21,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 247 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:21,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-03-03 18:37:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1406. [2022-03-03 18:37:21,091 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) [2022-03-03 18:37:21,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4398 transitions. [2022-03-03 18:37:21,096 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4398 transitions. Word has length 26 [2022-03-03 18:37:21,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:21,096 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4398 transitions. [2022-03-03 18:37:21,096 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) [2022-03-03 18:37:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4398 transitions. [2022-03-03 18:37:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:21,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:21,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:21,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 18:37:21,101 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:21,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:21,102 INFO L85 PathProgramCache]: Analyzing trace with hash 682573297, now seen corresponding path program 5 times [2022-03-03 18:37:21,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:21,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900566822] [2022-03-03 18:37:21,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:21,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:21,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:21,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900566822] [2022-03-03 18:37:21,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900566822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:21,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:21,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:21,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079782058] [2022-03-03 18:37:21,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:21,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:21,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:21,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:21,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:21,204 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) [2022-03-03 18:37:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:21,372 INFO L93 Difference]: Finished difference Result 1788 states and 5480 transitions. [2022-03-03 18:37:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:21,372 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 [2022-03-03 18:37:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:21,380 INFO L225 Difference]: With dead ends: 1788 [2022-03-03 18:37:21,380 INFO L226 Difference]: Without dead ends: 1647 [2022-03-03 18:37:21,380 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 [2022-03-03 18:37:21,382 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:21,382 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] [2022-03-03 18:37:21,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-03-03 18:37:21,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1463. [2022-03-03 18:37:21,409 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) [2022-03-03 18:37:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 4576 transitions. [2022-03-03 18:37:21,414 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 4576 transitions. Word has length 26 [2022-03-03 18:37:21,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:21,414 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 4576 transitions. [2022-03-03 18:37:21,414 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) [2022-03-03 18:37:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 4576 transitions. [2022-03-03 18:37:21,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:21,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:21,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:21,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 18:37:21,418 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:21,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:21,419 INFO L85 PathProgramCache]: Analyzing trace with hash -28751919, now seen corresponding path program 6 times [2022-03-03 18:37:21,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:21,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038556582] [2022-03-03 18:37:21,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:21,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:21,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:21,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038556582] [2022-03-03 18:37:21,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038556582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:21,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:21,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:21,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715965473] [2022-03-03 18:37:21,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:21,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:21,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:21,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:21,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:21,534 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) [2022-03-03 18:37:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:21,742 INFO L93 Difference]: Finished difference Result 1778 states and 5460 transitions. [2022-03-03 18:37:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:21,743 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 [2022-03-03 18:37:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:21,750 INFO L225 Difference]: With dead ends: 1778 [2022-03-03 18:37:21,750 INFO L226 Difference]: Without dead ends: 1649 [2022-03-03 18:37:21,750 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 [2022-03-03 18:37:21,750 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:21,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 223 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:21,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-03-03 18:37:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1488. [2022-03-03 18:37:21,785 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) [2022-03-03 18:37:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 4654 transitions. [2022-03-03 18:37:21,790 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 4654 transitions. Word has length 26 [2022-03-03 18:37:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:21,791 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 4654 transitions. [2022-03-03 18:37:21,791 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) [2022-03-03 18:37:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 4654 transitions. [2022-03-03 18:37:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:21,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:21,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:21,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 18:37:21,794 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:21,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:21,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1965052845, now seen corresponding path program 7 times [2022-03-03 18:37:21,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:21,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107136088] [2022-03-03 18:37:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:21,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:21,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107136088] [2022-03-03 18:37:21,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107136088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:21,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:21,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:21,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064974825] [2022-03-03 18:37:21,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:21,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:21,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:21,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:21,873 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) [2022-03-03 18:37:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:22,099 INFO L93 Difference]: Finished difference Result 1806 states and 5565 transitions. [2022-03-03 18:37:22,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:22,100 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 [2022-03-03 18:37:22,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:22,107 INFO L225 Difference]: With dead ends: 1806 [2022-03-03 18:37:22,107 INFO L226 Difference]: Without dead ends: 1647 [2022-03-03 18:37:22,107 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 [2022-03-03 18:37:22,108 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:22,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 225 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-03-03 18:37:22,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1509. [2022-03-03 18:37:22,135 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) [2022-03-03 18:37:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4715 transitions. [2022-03-03 18:37:22,139 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4715 transitions. Word has length 26 [2022-03-03 18:37:22,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:22,140 INFO L470 AbstractCegarLoop]: Abstraction has 1509 states and 4715 transitions. [2022-03-03 18:37:22,140 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) [2022-03-03 18:37:22,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4715 transitions. [2022-03-03 18:37:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:22,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:22,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:22,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 18:37:22,144 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:22,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:22,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1597680461, now seen corresponding path program 8 times [2022-03-03 18:37:22,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:22,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882535140] [2022-03-03 18:37:22,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:22,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:22,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:22,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:22,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882535140] [2022-03-03 18:37:22,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882535140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:22,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:22,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:22,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157712866] [2022-03-03 18:37:22,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:22,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:22,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:22,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:22,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:22,234 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) [2022-03-03 18:37:22,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:22,450 INFO L93 Difference]: Finished difference Result 1852 states and 5672 transitions. [2022-03-03 18:37:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:22,450 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 [2022-03-03 18:37:22,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:22,458 INFO L225 Difference]: With dead ends: 1852 [2022-03-03 18:37:22,458 INFO L226 Difference]: Without dead ends: 1713 [2022-03-03 18:37:22,458 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 [2022-03-03 18:37:22,459 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 [2022-03-03 18:37:22,459 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] [2022-03-03 18:37:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-03-03 18:37:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1499. [2022-03-03 18:37:22,487 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) [2022-03-03 18:37:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 4685 transitions. [2022-03-03 18:37:22,491 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 4685 transitions. Word has length 26 [2022-03-03 18:37:22,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:22,491 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 4685 transitions. [2022-03-03 18:37:22,491 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) [2022-03-03 18:37:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 4685 transitions. [2022-03-03 18:37:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:22,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:22,495 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] [2022-03-03 18:37:22,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 18:37:22,495 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:22,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:22,496 INFO L85 PathProgramCache]: Analyzing trace with hash -637420907, now seen corresponding path program 9 times [2022-03-03 18:37:22,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:22,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488087905] [2022-03-03 18:37:22,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:22,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:22,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:22,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488087905] [2022-03-03 18:37:22,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488087905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:22,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:22,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:22,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782873890] [2022-03-03 18:37:22,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:22,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:22,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:22,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:22,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:22,563 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) [2022-03-03 18:37:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:22,738 INFO L93 Difference]: Finished difference Result 1849 states and 5664 transitions. [2022-03-03 18:37:22,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:22,739 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 [2022-03-03 18:37:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:22,744 INFO L225 Difference]: With dead ends: 1849 [2022-03-03 18:37:22,744 INFO L226 Difference]: Without dead ends: 1708 [2022-03-03 18:37:22,745 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 [2022-03-03 18:37:22,745 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 [2022-03-03 18:37:22,745 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] [2022-03-03 18:37:22,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2022-03-03 18:37:22,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1525. [2022-03-03 18:37:22,774 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) [2022-03-03 18:37:22,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4765 transitions. [2022-03-03 18:37:22,778 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4765 transitions. Word has length 26 [2022-03-03 18:37:22,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:22,778 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 4765 transitions. [2022-03-03 18:37:22,779 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) [2022-03-03 18:37:22,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4765 transitions. [2022-03-03 18:37:22,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:22,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:22,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:22,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 18:37:22,782 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:22,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:22,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1721245463, now seen corresponding path program 10 times [2022-03-03 18:37:22,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:22,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872202316] [2022-03-03 18:37:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:22,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:22,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:22,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:22,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872202316] [2022-03-03 18:37:22,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872202316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:22,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:22,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:22,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053047323] [2022-03-03 18:37:22,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:22,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:22,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:22,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:22,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:22,865 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) [2022-03-03 18:37:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:23,076 INFO L93 Difference]: Finished difference Result 1932 states and 5906 transitions. [2022-03-03 18:37:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:23,077 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 [2022-03-03 18:37:23,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:23,081 INFO L225 Difference]: With dead ends: 1932 [2022-03-03 18:37:23,081 INFO L226 Difference]: Without dead ends: 1665 [2022-03-03 18:37:23,082 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 [2022-03-03 18:37:23,082 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:23,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 247 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:23,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-03-03 18:37:23,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1415. [2022-03-03 18:37:23,107 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) [2022-03-03 18:37:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4371 transitions. [2022-03-03 18:37:23,111 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4371 transitions. Word has length 26 [2022-03-03 18:37:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:23,111 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 4371 transitions. [2022-03-03 18:37:23,111 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) [2022-03-03 18:37:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4371 transitions. [2022-03-03 18:37:23,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:23,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:23,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:23,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 18:37:23,114 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:23,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:23,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1939805619, now seen corresponding path program 11 times [2022-03-03 18:37:23,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:23,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584480892] [2022-03-03 18:37:23,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:23,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:23,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:23,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584480892] [2022-03-03 18:37:23,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584480892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:23,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:23,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:23,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028100170] [2022-03-03 18:37:23,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:23,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:23,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:23,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:23,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:23,192 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) [2022-03-03 18:37:23,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:23,405 INFO L93 Difference]: Finished difference Result 1661 states and 5048 transitions. [2022-03-03 18:37:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:23,406 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 [2022-03-03 18:37:23,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:23,410 INFO L225 Difference]: With dead ends: 1661 [2022-03-03 18:37:23,410 INFO L226 Difference]: Without dead ends: 1528 [2022-03-03 18:37:23,410 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 [2022-03-03 18:37:23,411 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 [2022-03-03 18:37:23,411 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] [2022-03-03 18:37:23,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-03-03 18:37:23,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1405. [2022-03-03 18:37:23,439 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) [2022-03-03 18:37:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4334 transitions. [2022-03-03 18:37:23,443 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4334 transitions. Word has length 26 [2022-03-03 18:37:23,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:23,443 INFO L470 AbstractCegarLoop]: Abstraction has 1405 states and 4334 transitions. [2022-03-03 18:37:23,443 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) [2022-03-03 18:37:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4334 transitions. [2022-03-03 18:37:23,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:23,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:23,446 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] [2022-03-03 18:37:23,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 18:37:23,446 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:23,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:23,447 INFO L85 PathProgramCache]: Analyzing trace with hash 3504693, now seen corresponding path program 12 times [2022-03-03 18:37:23,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:23,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873015042] [2022-03-03 18:37:23,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:23,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:23,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:23,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:23,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873015042] [2022-03-03 18:37:23,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873015042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:23,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:23,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:23,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441508924] [2022-03-03 18:37:23,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:23,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:23,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:23,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:23,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:23,519 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) [2022-03-03 18:37:23,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:23,736 INFO L93 Difference]: Finished difference Result 1871 states and 5674 transitions. [2022-03-03 18:37:23,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:23,736 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 [2022-03-03 18:37:23,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:23,740 INFO L225 Difference]: With dead ends: 1871 [2022-03-03 18:37:23,740 INFO L226 Difference]: Without dead ends: 1726 [2022-03-03 18:37:23,741 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 [2022-03-03 18:37:23,741 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:23,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 223 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-03-03 18:37:23,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1433. [2022-03-03 18:37:23,764 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) [2022-03-03 18:37:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 4419 transitions. [2022-03-03 18:37:23,767 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 4419 transitions. Word has length 26 [2022-03-03 18:37:23,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:23,768 INFO L470 AbstractCegarLoop]: Abstraction has 1433 states and 4419 transitions. [2022-03-03 18:37:23,768 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) [2022-03-03 18:37:23,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 4419 transitions. [2022-03-03 18:37:23,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:23,770 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:23,770 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] [2022-03-03 18:37:23,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 18:37:23,771 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:23,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:23,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1298986211, now seen corresponding path program 13 times [2022-03-03 18:37:23,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:23,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277229795] [2022-03-03 18:37:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:23,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:23,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:23,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277229795] [2022-03-03 18:37:23,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277229795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:23,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:23,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:23,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667995502] [2022-03-03 18:37:23,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:23,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:23,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:23,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:23,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:23,844 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) [2022-03-03 18:37:24,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:24,067 INFO L93 Difference]: Finished difference Result 1746 states and 5285 transitions. [2022-03-03 18:37:24,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:24,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:24,072 INFO L225 Difference]: With dead ends: 1746 [2022-03-03 18:37:24,072 INFO L226 Difference]: Without dead ends: 1561 [2022-03-03 18:37:24,072 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 [2022-03-03 18:37:24,072 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 [2022-03-03 18:37:24,072 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] [2022-03-03 18:37:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-03-03 18:37:24,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1389. [2022-03-03 18:37:24,093 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) [2022-03-03 18:37:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 4285 transitions. [2022-03-03 18:37:24,096 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 4285 transitions. Word has length 26 [2022-03-03 18:37:24,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:24,096 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 4285 transitions. [2022-03-03 18:37:24,096 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) [2022-03-03 18:37:24,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 4285 transitions. [2022-03-03 18:37:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:24,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:24,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:24,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 18:37:24,099 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:24,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1870208439, now seen corresponding path program 14 times [2022-03-03 18:37:24,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:24,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037339148] [2022-03-03 18:37:24,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:24,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:24,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:24,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037339148] [2022-03-03 18:37:24,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037339148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:24,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:24,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:24,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363434048] [2022-03-03 18:37:24,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:24,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:24,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:24,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:24,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:24,175 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) [2022-03-03 18:37:24,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:24,391 INFO L93 Difference]: Finished difference Result 1686 states and 5109 transitions. [2022-03-03 18:37:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:24,391 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 [2022-03-03 18:37:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:24,394 INFO L225 Difference]: With dead ends: 1686 [2022-03-03 18:37:24,395 INFO L226 Difference]: Without dead ends: 1511 [2022-03-03 18:37:24,395 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 [2022-03-03 18:37:24,395 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 [2022-03-03 18:37:24,395 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] [2022-03-03 18:37:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2022-03-03 18:37:24,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1339. [2022-03-03 18:37:24,422 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) [2022-03-03 18:37:24,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 4135 transitions. [2022-03-03 18:37:24,425 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 4135 transitions. Word has length 26 [2022-03-03 18:37:24,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:24,425 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 4135 transitions. [2022-03-03 18:37:24,425 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) [2022-03-03 18:37:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 4135 transitions. [2022-03-03 18:37:24,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:24,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:24,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:24,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 18:37:24,428 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1158883223, now seen corresponding path program 15 times [2022-03-03 18:37:24,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:24,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431335112] [2022-03-03 18:37:24,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:24,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:24,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431335112] [2022-03-03 18:37:24,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431335112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:24,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:24,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:24,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250911275] [2022-03-03 18:37:24,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:24,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:24,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:24,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:24,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:24,496 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) [2022-03-03 18:37:24,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:24,711 INFO L93 Difference]: Finished difference Result 1627 states and 4941 transitions. [2022-03-03 18:37:24,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:24,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:24,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:24,715 INFO L225 Difference]: With dead ends: 1627 [2022-03-03 18:37:24,715 INFO L226 Difference]: Without dead ends: 1462 [2022-03-03 18:37:24,715 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 [2022-03-03 18:37:24,715 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 [2022-03-03 18:37:24,715 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] [2022-03-03 18:37:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-03-03 18:37:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1322. [2022-03-03 18:37:24,733 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) [2022-03-03 18:37:24,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 4086 transitions. [2022-03-03 18:37:24,735 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 4086 transitions. Word has length 26 [2022-03-03 18:37:24,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:24,735 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 4086 transitions. [2022-03-03 18:37:24,735 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) [2022-03-03 18:37:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 4086 transitions. [2022-03-03 18:37:24,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:24,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:24,738 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] [2022-03-03 18:37:24,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 18:37:24,738 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:24,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:24,738 INFO L85 PathProgramCache]: Analyzing trace with hash -410045319, now seen corresponding path program 16 times [2022-03-03 18:37:24,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:24,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026026387] [2022-03-03 18:37:24,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:24,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:24,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:24,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026026387] [2022-03-03 18:37:24,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026026387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:24,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:24,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:24,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713081723] [2022-03-03 18:37:24,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:24,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:24,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:24,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:24,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:24,804 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) [2022-03-03 18:37:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:25,029 INFO L93 Difference]: Finished difference Result 1728 states and 5256 transitions. [2022-03-03 18:37:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:25,030 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 [2022-03-03 18:37:25,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:25,034 INFO L225 Difference]: With dead ends: 1728 [2022-03-03 18:37:25,034 INFO L226 Difference]: Without dead ends: 1573 [2022-03-03 18:37:25,034 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 [2022-03-03 18:37:25,035 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 [2022-03-03 18:37:25,035 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] [2022-03-03 18:37:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-03 18:37:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1301. [2022-03-03 18:37:25,055 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) [2022-03-03 18:37:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 4021 transitions. [2022-03-03 18:37:25,058 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 4021 transitions. Word has length 26 [2022-03-03 18:37:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:25,058 INFO L470 AbstractCegarLoop]: Abstraction has 1301 states and 4021 transitions. [2022-03-03 18:37:25,059 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) [2022-03-03 18:37:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 4021 transitions. [2022-03-03 18:37:25,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:25,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:25,062 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] [2022-03-03 18:37:25,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 18:37:25,062 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:25,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:25,063 INFO L85 PathProgramCache]: Analyzing trace with hash -980053157, now seen corresponding path program 17 times [2022-03-03 18:37:25,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:25,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454385244] [2022-03-03 18:37:25,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:25,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:25,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:25,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454385244] [2022-03-03 18:37:25,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454385244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:25,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:25,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:25,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888563335] [2022-03-03 18:37:25,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:25,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:25,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:25,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:25,128 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) [2022-03-03 18:37:25,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:25,331 INFO L93 Difference]: Finished difference Result 1527 states and 4646 transitions. [2022-03-03 18:37:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:25,331 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 [2022-03-03 18:37:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:25,335 INFO L225 Difference]: With dead ends: 1527 [2022-03-03 18:37:25,335 INFO L226 Difference]: Without dead ends: 1316 [2022-03-03 18:37:25,335 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 [2022-03-03 18:37:25,335 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 [2022-03-03 18:37:25,335 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] [2022-03-03 18:37:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-03-03 18:37:25,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1138. [2022-03-03 18:37:25,352 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) [2022-03-03 18:37:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 3549 transitions. [2022-03-03 18:37:25,355 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 3549 transitions. Word has length 26 [2022-03-03 18:37:25,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:25,355 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 3549 transitions. [2022-03-03 18:37:25,355 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) [2022-03-03 18:37:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 3549 transitions. [2022-03-03 18:37:25,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:25,357 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:25,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:25,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 18:37:25,357 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:25,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:25,358 INFO L85 PathProgramCache]: Analyzing trace with hash -198491113, now seen corresponding path program 18 times [2022-03-03 18:37:25,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:25,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198224918] [2022-03-03 18:37:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:25,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:25,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:25,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198224918] [2022-03-03 18:37:25,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198224918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:25,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:25,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:25,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576974650] [2022-03-03 18:37:25,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:25,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:25,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:25,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:25,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:25,423 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) [2022-03-03 18:37:25,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:25,587 INFO L93 Difference]: Finished difference Result 1698 states and 5175 transitions. [2022-03-03 18:37:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:25,587 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 [2022-03-03 18:37:25,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:25,591 INFO L225 Difference]: With dead ends: 1698 [2022-03-03 18:37:25,591 INFO L226 Difference]: Without dead ends: 1446 [2022-03-03 18:37:25,591 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 [2022-03-03 18:37:25,591 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 58 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:25,592 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] [2022-03-03 18:37:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-03-03 18:37:25,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1252. [2022-03-03 18:37:25,613 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) [2022-03-03 18:37:25,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3852 transitions. [2022-03-03 18:37:25,618 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3852 transitions. Word has length 26 [2022-03-03 18:37:25,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:25,619 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3852 transitions. [2022-03-03 18:37:25,619 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) [2022-03-03 18:37:25,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3852 transitions. [2022-03-03 18:37:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:25,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:25,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:25,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 18:37:25,622 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:25,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:25,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1980207065, now seen corresponding path program 19 times [2022-03-03 18:37:25,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:25,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450716346] [2022-03-03 18:37:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:25,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:25,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:25,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450716346] [2022-03-03 18:37:25,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450716346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:25,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:25,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:25,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342015786] [2022-03-03 18:37:25,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:25,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:25,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:25,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:25,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:25,690 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) [2022-03-03 18:37:25,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:25,895 INFO L93 Difference]: Finished difference Result 1559 states and 4705 transitions. [2022-03-03 18:37:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:25,896 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 [2022-03-03 18:37:25,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:25,899 INFO L225 Difference]: With dead ends: 1559 [2022-03-03 18:37:25,899 INFO L226 Difference]: Without dead ends: 1310 [2022-03-03 18:37:25,899 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 [2022-03-03 18:37:25,900 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 [2022-03-03 18:37:25,900 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] [2022-03-03 18:37:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-03-03 18:37:25,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1106. [2022-03-03 18:37:25,923 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) [2022-03-03 18:37:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 3413 transitions. [2022-03-03 18:37:25,925 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 3413 transitions. Word has length 26 [2022-03-03 18:37:25,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:25,925 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 3413 transitions. [2022-03-03 18:37:25,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:25,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 3413 transitions. [2022-03-03 18:37:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:25,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:25,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:25,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 18:37:25,928 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:25,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:25,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2108554859, now seen corresponding path program 20 times [2022-03-03 18:37:25,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:25,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805177627] [2022-03-03 18:37:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:26,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:26,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:26,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805177627] [2022-03-03 18:37:26,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805177627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:26,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:26,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:26,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287782296] [2022-03-03 18:37:26,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:26,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:26,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:26,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:26,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:26,015 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) [2022-03-03 18:37:26,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:26,209 INFO L93 Difference]: Finished difference Result 1455 states and 4380 transitions. [2022-03-03 18:37:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:26,209 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 [2022-03-03 18:37:26,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:26,212 INFO L225 Difference]: With dead ends: 1455 [2022-03-03 18:37:26,212 INFO L226 Difference]: Without dead ends: 1268 [2022-03-03 18:37:26,213 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 [2022-03-03 18:37:26,213 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 64 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:26,213 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] [2022-03-03 18:37:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-03-03 18:37:26,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1116. [2022-03-03 18:37:26,229 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) [2022-03-03 18:37:26,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 3431 transitions. [2022-03-03 18:37:26,231 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 3431 transitions. Word has length 26 [2022-03-03 18:37:26,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:26,231 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 3431 transitions. [2022-03-03 18:37:26,231 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) [2022-03-03 18:37:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 3431 transitions. [2022-03-03 18:37:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:26,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:26,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:26,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 18:37:26,233 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:26,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:26,234 INFO L85 PathProgramCache]: Analyzing trace with hash 70143319, now seen corresponding path program 21 times [2022-03-03 18:37:26,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:26,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190064781] [2022-03-03 18:37:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:26,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:26,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:26,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190064781] [2022-03-03 18:37:26,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190064781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:26,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:26,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:26,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360509789] [2022-03-03 18:37:26,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:26,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:26,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:26,304 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) [2022-03-03 18:37:26,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:26,545 INFO L93 Difference]: Finished difference Result 1381 states and 4160 transitions. [2022-03-03 18:37:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:26,545 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 [2022-03-03 18:37:26,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:26,561 INFO L225 Difference]: With dead ends: 1381 [2022-03-03 18:37:26,561 INFO L226 Difference]: Without dead ends: 1226 [2022-03-03 18:37:26,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:26,561 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 69 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:26,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 303 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-03-03 18:37:26,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1090. [2022-03-03 18:37:26,580 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) [2022-03-03 18:37:26,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 3365 transitions. [2022-03-03 18:37:26,582 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 3365 transitions. Word has length 26 [2022-03-03 18:37:26,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:26,582 INFO L470 AbstractCegarLoop]: Abstraction has 1090 states and 3365 transitions. [2022-03-03 18:37:26,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 3365 transitions. [2022-03-03 18:37:26,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:26,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:26,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:26,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 18:37:26,585 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:26,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash 549787923, now seen corresponding path program 22 times [2022-03-03 18:37:26,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:26,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408863975] [2022-03-03 18:37:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:26,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:26,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408863975] [2022-03-03 18:37:26,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408863975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:26,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:26,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:26,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122580184] [2022-03-03 18:37:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:26,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:26,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:26,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:26,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:26,658 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) [2022-03-03 18:37:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:26,847 INFO L93 Difference]: Finished difference Result 1426 states and 4315 transitions. [2022-03-03 18:37:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:26,848 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 [2022-03-03 18:37:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:26,851 INFO L225 Difference]: With dead ends: 1426 [2022-03-03 18:37:26,851 INFO L226 Difference]: Without dead ends: 1303 [2022-03-03 18:37:26,851 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 [2022-03-03 18:37:26,851 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:26,851 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] [2022-03-03 18:37:26,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-03-03 18:37:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1149. [2022-03-03 18:37:26,866 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) [2022-03-03 18:37:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 3546 transitions. [2022-03-03 18:37:26,868 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 3546 transitions. Word has length 26 [2022-03-03 18:37:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:26,868 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 3546 transitions. [2022-03-03 18:37:26,868 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) [2022-03-03 18:37:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 3546 transitions. [2022-03-03 18:37:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:26,870 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:26,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:26,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 18:37:26,871 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:26,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:26,871 INFO L85 PathProgramCache]: Analyzing trace with hash -161537293, now seen corresponding path program 23 times [2022-03-03 18:37:26,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:26,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627210528] [2022-03-03 18:37:26,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:26,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:26,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:26,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627210528] [2022-03-03 18:37:26,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627210528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:26,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:26,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:26,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520331609] [2022-03-03 18:37:26,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:26,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:26,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:26,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:26,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:26,941 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) [2022-03-03 18:37:27,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:27,170 INFO L93 Difference]: Finished difference Result 1438 states and 4359 transitions. [2022-03-03 18:37:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:27,173 INFO L225 Difference]: With dead ends: 1438 [2022-03-03 18:37:27,173 INFO L226 Difference]: Without dead ends: 1327 [2022-03-03 18:37:27,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:27,173 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:27,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 276 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:27,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2022-03-03 18:37:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1164. [2022-03-03 18:37:27,188 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) [2022-03-03 18:37:27,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 3592 transitions. [2022-03-03 18:37:27,190 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 3592 transitions. Word has length 26 [2022-03-03 18:37:27,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:27,191 INFO L470 AbstractCegarLoop]: Abstraction has 1164 states and 3592 transitions. [2022-03-03 18:37:27,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 3592 transitions. [2022-03-03 18:37:27,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:27,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:27,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:27,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 18:37:27,195 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:27,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:27,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2097838219, now seen corresponding path program 24 times [2022-03-03 18:37:27,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:27,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671483230] [2022-03-03 18:37:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:27,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:27,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:27,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671483230] [2022-03-03 18:37:27,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671483230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:27,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:27,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:27,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320889980] [2022-03-03 18:37:27,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:27,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:27,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:27,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:27,282 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) [2022-03-03 18:37:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:27,535 INFO L93 Difference]: Finished difference Result 1343 states and 4063 transitions. [2022-03-03 18:37:27,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:27,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:27,550 INFO L225 Difference]: With dead ends: 1343 [2022-03-03 18:37:27,550 INFO L226 Difference]: Without dead ends: 1209 [2022-03-03 18:37:27,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:27,550 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:27,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 278 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:27,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2022-03-03 18:37:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1153. [2022-03-03 18:37:27,567 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) [2022-03-03 18:37:27,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 3557 transitions. [2022-03-03 18:37:27,570 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 3557 transitions. Word has length 26 [2022-03-03 18:37:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:27,571 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 3557 transitions. [2022-03-03 18:37:27,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:27,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 3557 transitions. [2022-03-03 18:37:27,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:27,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:27,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:27,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 18:37:27,574 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:27,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:27,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1730465835, now seen corresponding path program 25 times [2022-03-03 18:37:27,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:27,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780960782] [2022-03-03 18:37:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:27,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:27,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:27,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780960782] [2022-03-03 18:37:27,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780960782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:27,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:27,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:27,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753096560] [2022-03-03 18:37:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:27,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:27,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:27,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:27,674 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) [2022-03-03 18:37:27,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:27,905 INFO L93 Difference]: Finished difference Result 1431 states and 4320 transitions. [2022-03-03 18:37:27,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:27,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:27,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:27,908 INFO L225 Difference]: With dead ends: 1431 [2022-03-03 18:37:27,908 INFO L226 Difference]: Without dead ends: 1310 [2022-03-03 18:37:27,908 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 [2022-03-03 18:37:27,909 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 [2022-03-03 18:37:27,909 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] [2022-03-03 18:37:27,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-03-03 18:37:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1143. [2022-03-03 18:37:27,923 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) [2022-03-03 18:37:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3527 transitions. [2022-03-03 18:37:27,925 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3527 transitions. Word has length 26 [2022-03-03 18:37:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:27,925 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3527 transitions. [2022-03-03 18:37:27,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3527 transitions. [2022-03-03 18:37:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:27,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:27,927 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] [2022-03-03 18:37:27,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 18:37:27,927 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:27,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:27,927 INFO L85 PathProgramCache]: Analyzing trace with hash -770206281, now seen corresponding path program 26 times [2022-03-03 18:37:27,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:27,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684228279] [2022-03-03 18:37:27,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:27,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:27,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:27,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684228279] [2022-03-03 18:37:27,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684228279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:27,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:27,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:27,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931532328] [2022-03-03 18:37:27,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:27,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:27,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:27,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:27,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:27,996 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) [2022-03-03 18:37:28,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:28,192 INFO L93 Difference]: Finished difference Result 1389 states and 4203 transitions. [2022-03-03 18:37:28,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:28,192 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 [2022-03-03 18:37:28,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:28,195 INFO L225 Difference]: With dead ends: 1389 [2022-03-03 18:37:28,195 INFO L226 Difference]: Without dead ends: 1278 [2022-03-03 18:37:28,195 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 [2022-03-03 18:37:28,195 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 [2022-03-03 18:37:28,195 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] [2022-03-03 18:37:28,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-03-03 18:37:28,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1180. [2022-03-03 18:37:28,209 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) [2022-03-03 18:37:28,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 3634 transitions. [2022-03-03 18:37:28,211 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 3634 transitions. Word has length 26 [2022-03-03 18:37:28,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:28,211 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 3634 transitions. [2022-03-03 18:37:28,211 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) [2022-03-03 18:37:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 3634 transitions. [2022-03-03 18:37:28,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:28,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:28,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:28,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 18:37:28,213 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:28,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1588460089, now seen corresponding path program 27 times [2022-03-03 18:37:28,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:28,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234209929] [2022-03-03 18:37:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:28,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:28,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:28,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234209929] [2022-03-03 18:37:28,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234209929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:28,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:28,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:28,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065543926] [2022-03-03 18:37:28,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:28,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:28,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:28,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:28,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:28,284 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) [2022-03-03 18:37:28,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:28,528 INFO L93 Difference]: Finished difference Result 1506 states and 4529 transitions. [2022-03-03 18:37:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:28,528 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 [2022-03-03 18:37:28,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:28,531 INFO L225 Difference]: With dead ends: 1506 [2022-03-03 18:37:28,531 INFO L226 Difference]: Without dead ends: 1281 [2022-03-03 18:37:28,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:28,531 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 69 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:28,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 303 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:28,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-03-03 18:37:28,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1143. [2022-03-03 18:37:28,550 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) [2022-03-03 18:37:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3503 transitions. [2022-03-03 18:37:28,552 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3503 transitions. Word has length 26 [2022-03-03 18:37:28,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:28,552 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3503 transitions. [2022-03-03 18:37:28,552 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) [2022-03-03 18:37:28,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3503 transitions. [2022-03-03 18:37:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:28,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:28,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:28,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 18:37:28,554 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:28,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:28,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1807020245, now seen corresponding path program 28 times [2022-03-03 18:37:28,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:28,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146191559] [2022-03-03 18:37:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:28,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:28,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:28,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146191559] [2022-03-03 18:37:28,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146191559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:28,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:28,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:28,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709649298] [2022-03-03 18:37:28,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:28,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:28,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:28,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:28,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:28,638 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) [2022-03-03 18:37:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:28,886 INFO L93 Difference]: Finished difference Result 1303 states and 3927 transitions. [2022-03-03 18:37:28,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:28,887 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 [2022-03-03 18:37:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:28,888 INFO L225 Difference]: With dead ends: 1303 [2022-03-03 18:37:28,889 INFO L226 Difference]: Without dead ends: 1192 [2022-03-03 18:37:28,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:28,889 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:28,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 278 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-03-03 18:37:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1154. [2022-03-03 18:37:28,902 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) [2022-03-03 18:37:28,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 3534 transitions. [2022-03-03 18:37:28,904 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 3534 transitions. Word has length 26 [2022-03-03 18:37:28,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:28,904 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 3534 transitions. [2022-03-03 18:37:28,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:28,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 3534 transitions. [2022-03-03 18:37:28,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:28,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:28,906 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] [2022-03-03 18:37:28,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 18:37:28,906 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:28,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:28,906 INFO L85 PathProgramCache]: Analyzing trace with hash -129280681, now seen corresponding path program 29 times [2022-03-03 18:37:28,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:28,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050931243] [2022-03-03 18:37:28,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:28,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:28,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:28,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050931243] [2022-03-03 18:37:28,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050931243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:28,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:28,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:28,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128212030] [2022-03-03 18:37:28,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:28,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:28,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:28,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:28,976 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) [2022-03-03 18:37:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:29,232 INFO L93 Difference]: Finished difference Result 1496 states and 4503 transitions. [2022-03-03 18:37:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:29,232 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 [2022-03-03 18:37:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:29,235 INFO L225 Difference]: With dead ends: 1496 [2022-03-03 18:37:29,235 INFO L226 Difference]: Without dead ends: 1369 [2022-03-03 18:37:29,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:29,235 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:29,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 276 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-03-03 18:37:29,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1143. [2022-03-03 18:37:29,250 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) [2022-03-03 18:37:29,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3501 transitions. [2022-03-03 18:37:29,253 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3501 transitions. Word has length 26 [2022-03-03 18:37:29,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:29,253 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3501 transitions. [2022-03-03 18:37:29,253 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) [2022-03-03 18:37:29,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3501 transitions. [2022-03-03 18:37:29,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:29,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:29,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:29,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 18:37:29,256 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:29,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1431771585, now seen corresponding path program 30 times [2022-03-03 18:37:29,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:29,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261479001] [2022-03-03 18:37:29,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:29,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:29,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:29,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261479001] [2022-03-03 18:37:29,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261479001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:29,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:29,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:29,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172972524] [2022-03-03 18:37:29,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:29,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:29,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:29,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:29,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:29,336 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) [2022-03-03 18:37:29,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:29,578 INFO L93 Difference]: Finished difference Result 1406 states and 4227 transitions. [2022-03-03 18:37:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:29,578 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:29,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:29,581 INFO L225 Difference]: With dead ends: 1406 [2022-03-03 18:37:29,581 INFO L226 Difference]: Without dead ends: 1239 [2022-03-03 18:37:29,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:29,581 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 280 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:29,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-03-03 18:37:29,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1113. [2022-03-03 18:37:29,595 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) [2022-03-03 18:37:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 3431 transitions. [2022-03-03 18:37:29,597 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 3431 transitions. Word has length 26 [2022-03-03 18:37:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:29,597 INFO L470 AbstractCegarLoop]: Abstraction has 1113 states and 3431 transitions. [2022-03-03 18:37:29,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 3431 transitions. [2022-03-03 18:37:29,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:29,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:29,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:29,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 18:37:29,599 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:29,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:29,599 INFO L85 PathProgramCache]: Analyzing trace with hash -269593419, now seen corresponding path program 31 times [2022-03-03 18:37:29,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:29,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63004142] [2022-03-03 18:37:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:29,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:29,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:29,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63004142] [2022-03-03 18:37:29,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63004142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:29,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:29,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:29,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937307903] [2022-03-03 18:37:29,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:29,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:29,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:29,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:29,651 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) [2022-03-03 18:37:29,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:29,821 INFO L93 Difference]: Finished difference Result 1453 states and 4359 transitions. [2022-03-03 18:37:29,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:29,822 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 [2022-03-03 18:37:29,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:29,824 INFO L225 Difference]: With dead ends: 1453 [2022-03-03 18:37:29,824 INFO L226 Difference]: Without dead ends: 1292 [2022-03-03 18:37:29,824 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 [2022-03-03 18:37:29,825 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:29,825 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] [2022-03-03 18:37:29,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-03 18:37:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1206. [2022-03-03 18:37:29,838 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) [2022-03-03 18:37:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 3680 transitions. [2022-03-03 18:37:29,840 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 3680 transitions. Word has length 26 [2022-03-03 18:37:29,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:29,840 INFO L470 AbstractCegarLoop]: Abstraction has 1206 states and 3680 transitions. [2022-03-03 18:37:29,840 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) [2022-03-03 18:37:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 3680 transitions. [2022-03-03 18:37:29,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:29,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:29,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:29,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 18:37:29,843 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:29,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:29,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1909104759, now seen corresponding path program 32 times [2022-03-03 18:37:29,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:29,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141567801] [2022-03-03 18:37:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:29,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:29,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:29,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:29,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141567801] [2022-03-03 18:37:29,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141567801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:29,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:29,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:29,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217869297] [2022-03-03 18:37:29,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:29,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:29,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:29,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:29,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:29,910 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) [2022-03-03 18:37:30,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:30,141 INFO L93 Difference]: Finished difference Result 1409 states and 4234 transitions. [2022-03-03 18:37:30,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:30,141 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 [2022-03-03 18:37:30,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:30,144 INFO L225 Difference]: With dead ends: 1409 [2022-03-03 18:37:30,144 INFO L226 Difference]: Without dead ends: 1286 [2022-03-03 18:37:30,144 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 [2022-03-03 18:37:30,144 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 [2022-03-03 18:37:30,144 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] [2022-03-03 18:37:30,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-03 18:37:30,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1180. [2022-03-03 18:37:30,157 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) [2022-03-03 18:37:30,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 3612 transitions. [2022-03-03 18:37:30,159 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 3612 transitions. Word has length 26 [2022-03-03 18:37:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:30,159 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 3612 transitions. [2022-03-03 18:37:30,159 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) [2022-03-03 18:37:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 3612 transitions. [2022-03-03 18:37:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:30,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:30,161 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] [2022-03-03 18:37:30,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 18:37:30,161 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:30,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:30,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1778640983, now seen corresponding path program 33 times [2022-03-03 18:37:30,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:30,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649337926] [2022-03-03 18:37:30,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:30,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:30,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:30,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:30,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649337926] [2022-03-03 18:37:30,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649337926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:30,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:30,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:30,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978848206] [2022-03-03 18:37:30,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:30,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:30,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:30,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:30,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:30,215 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) [2022-03-03 18:37:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:30,364 INFO L93 Difference]: Finished difference Result 1516 states and 4589 transitions. [2022-03-03 18:37:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:30,365 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 [2022-03-03 18:37:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:30,367 INFO L225 Difference]: With dead ends: 1516 [2022-03-03 18:37:30,367 INFO L226 Difference]: Without dead ends: 1419 [2022-03-03 18:37:30,368 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 [2022-03-03 18:37:30,368 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 47 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:30,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 186 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:37:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2022-03-03 18:37:30,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1247. [2022-03-03 18:37:30,383 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) [2022-03-03 18:37:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3825 transitions. [2022-03-03 18:37:30,385 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3825 transitions. Word has length 26 [2022-03-03 18:37:30,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:30,385 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3825 transitions. [2022-03-03 18:37:30,385 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) [2022-03-03 18:37:30,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3825 transitions. [2022-03-03 18:37:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:30,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:30,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:30,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 18:37:30,388 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:30,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:30,388 INFO L85 PathProgramCache]: Analyzing trace with hash -2016900199, now seen corresponding path program 34 times [2022-03-03 18:37:30,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:30,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871626023] [2022-03-03 18:37:30,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:30,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:30,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:30,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871626023] [2022-03-03 18:37:30,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871626023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:30,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:30,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:30,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523858123] [2022-03-03 18:37:30,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:30,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:30,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:30,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:30,459 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) [2022-03-03 18:37:30,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:30,668 INFO L93 Difference]: Finished difference Result 1463 states and 4440 transitions. [2022-03-03 18:37:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:30,668 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 [2022-03-03 18:37:30,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:30,671 INFO L225 Difference]: With dead ends: 1463 [2022-03-03 18:37:30,671 INFO L226 Difference]: Without dead ends: 1384 [2022-03-03 18:37:30,671 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 [2022-03-03 18:37:30,671 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 [2022-03-03 18:37:30,671 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] [2022-03-03 18:37:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-03-03 18:37:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1263. [2022-03-03 18:37:30,686 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) [2022-03-03 18:37:30,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 3875 transitions. [2022-03-03 18:37:30,688 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 3875 transitions. Word has length 26 [2022-03-03 18:37:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:30,688 INFO L470 AbstractCegarLoop]: Abstraction has 1263 states and 3875 transitions. [2022-03-03 18:37:30,689 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) [2022-03-03 18:37:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 3875 transitions. [2022-03-03 18:37:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:30,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:30,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:30,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 18:37:30,691 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:30,691 INFO L85 PathProgramCache]: Analyzing trace with hash 566725593, now seen corresponding path program 35 times [2022-03-03 18:37:30,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:30,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350595868] [2022-03-03 18:37:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:30,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:30,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:30,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350595868] [2022-03-03 18:37:30,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350595868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:30,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:30,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:30,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144097410] [2022-03-03 18:37:30,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:30,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:30,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:30,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:30,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:30,754 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) [2022-03-03 18:37:30,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:30,988 INFO L93 Difference]: Finished difference Result 1486 states and 4488 transitions. [2022-03-03 18:37:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:30,988 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 [2022-03-03 18:37:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:30,991 INFO L225 Difference]: With dead ends: 1486 [2022-03-03 18:37:30,991 INFO L226 Difference]: Without dead ends: 1382 [2022-03-03 18:37:30,991 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 [2022-03-03 18:37:30,992 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:30,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 228 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:30,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-03-03 18:37:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1252. [2022-03-03 18:37:31,007 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) [2022-03-03 18:37:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3838 transitions. [2022-03-03 18:37:31,010 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3838 transitions. Word has length 26 [2022-03-03 18:37:31,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:31,010 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3838 transitions. [2022-03-03 18:37:31,010 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) [2022-03-03 18:37:31,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3838 transitions. [2022-03-03 18:37:31,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:31,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:31,013 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] [2022-03-03 18:37:31,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 18:37:31,013 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:31,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1096324233, now seen corresponding path program 36 times [2022-03-03 18:37:31,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:31,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193284579] [2022-03-03 18:37:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:31,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:31,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:31,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193284579] [2022-03-03 18:37:31,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193284579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:31,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:31,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:31,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551840860] [2022-03-03 18:37:31,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:31,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:31,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:31,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:31,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:31,083 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) [2022-03-03 18:37:31,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:31,292 INFO L93 Difference]: Finished difference Result 1521 states and 4598 transitions. [2022-03-03 18:37:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:31,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:31,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:31,295 INFO L225 Difference]: With dead ends: 1521 [2022-03-03 18:37:31,295 INFO L226 Difference]: Without dead ends: 1427 [2022-03-03 18:37:31,295 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 [2022-03-03 18:37:31,296 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 [2022-03-03 18:37:31,296 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] [2022-03-03 18:37:31,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2022-03-03 18:37:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1240. [2022-03-03 18:37:31,315 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) [2022-03-03 18:37:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 3803 transitions. [2022-03-03 18:37:31,317 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 3803 transitions. Word has length 26 [2022-03-03 18:37:31,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:31,318 INFO L470 AbstractCegarLoop]: Abstraction has 1240 states and 3803 transitions. [2022-03-03 18:37:31,318 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) [2022-03-03 18:37:31,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 3803 transitions. [2022-03-03 18:37:31,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:31,320 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:31,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:31,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 18:37:31,320 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:31,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2138397041, now seen corresponding path program 37 times [2022-03-03 18:37:31,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:31,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028773031] [2022-03-03 18:37:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:31,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:31,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:31,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028773031] [2022-03-03 18:37:31,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028773031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:31,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:31,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:31,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240607846] [2022-03-03 18:37:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:31,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:31,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:31,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:31,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:31,380 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) [2022-03-03 18:37:31,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:31,542 INFO L93 Difference]: Finished difference Result 1472 states and 4446 transitions. [2022-03-03 18:37:31,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:31,542 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 [2022-03-03 18:37:31,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:31,545 INFO L225 Difference]: With dead ends: 1472 [2022-03-03 18:37:31,545 INFO L226 Difference]: Without dead ends: 1393 [2022-03-03 18:37:31,545 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 [2022-03-03 18:37:31,545 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:31,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 184 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:37:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-03-03 18:37:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1277. [2022-03-03 18:37:31,561 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) [2022-03-03 18:37:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 3910 transitions. [2022-03-03 18:37:31,563 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 3910 transitions. Word has length 26 [2022-03-03 18:37:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:31,564 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 3910 transitions. [2022-03-03 18:37:31,564 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) [2022-03-03 18:37:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 3910 transitions. [2022-03-03 18:37:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:31,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:31,566 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] [2022-03-03 18:37:31,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 18:37:31,566 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:31,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash 427055537, now seen corresponding path program 38 times [2022-03-03 18:37:31,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:31,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780267199] [2022-03-03 18:37:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:31,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:31,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780267199] [2022-03-03 18:37:31,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780267199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:31,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:31,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:31,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618570679] [2022-03-03 18:37:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:31,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:31,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:31,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:31,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:31,637 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) [2022-03-03 18:37:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:31,846 INFO L93 Difference]: Finished difference Result 1553 states and 4668 transitions. [2022-03-03 18:37:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:31,846 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 [2022-03-03 18:37:31,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:31,849 INFO L225 Difference]: With dead ends: 1553 [2022-03-03 18:37:31,849 INFO L226 Difference]: Without dead ends: 1354 [2022-03-03 18:37:31,849 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 [2022-03-03 18:37:31,849 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 [2022-03-03 18:37:31,849 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] [2022-03-03 18:37:31,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-03-03 18:37:31,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1244. [2022-03-03 18:37:31,863 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) [2022-03-03 18:37:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3779 transitions. [2022-03-03 18:37:31,865 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3779 transitions. Word has length 26 [2022-03-03 18:37:31,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:31,865 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3779 transitions. [2022-03-03 18:37:31,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:31,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3779 transitions. [2022-03-03 18:37:31,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:31,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:31,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:31,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 18:37:31,868 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:31,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:31,868 INFO L85 PathProgramCache]: Analyzing trace with hash 600977811, now seen corresponding path program 39 times [2022-03-03 18:37:31,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:31,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718396481] [2022-03-03 18:37:31,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:31,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:31,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:31,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718396481] [2022-03-03 18:37:31,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718396481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:31,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:31,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:31,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893481467] [2022-03-03 18:37:31,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:31,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:31,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:31,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:31,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:31,939 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) [2022-03-03 18:37:32,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:32,123 INFO L93 Difference]: Finished difference Result 1430 states and 4297 transitions. [2022-03-03 18:37:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:32,123 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 [2022-03-03 18:37:32,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:32,126 INFO L225 Difference]: With dead ends: 1430 [2022-03-03 18:37:32,126 INFO L226 Difference]: Without dead ends: 1351 [2022-03-03 18:37:32,126 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 [2022-03-03 18:37:32,127 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:32,127 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] [2022-03-03 18:37:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-03-03 18:37:32,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1255. [2022-03-03 18:37:32,142 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) [2022-03-03 18:37:32,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 3810 transitions. [2022-03-03 18:37:32,144 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 3810 transitions. Word has length 26 [2022-03-03 18:37:32,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:32,144 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 3810 transitions. [2022-03-03 18:37:32,144 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) [2022-03-03 18:37:32,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 3810 transitions. [2022-03-03 18:37:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:32,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:32,146 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] [2022-03-03 18:37:32,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 18:37:32,146 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:32,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:32,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1110363693, now seen corresponding path program 40 times [2022-03-03 18:37:32,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:32,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447866354] [2022-03-03 18:37:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:32,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:32,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:32,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447866354] [2022-03-03 18:37:32,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447866354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:32,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:32,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:32,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148545701] [2022-03-03 18:37:32,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:32,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:32,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:32,214 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) [2022-03-03 18:37:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:32,431 INFO L93 Difference]: Finished difference Result 1537 states and 4623 transitions. [2022-03-03 18:37:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:32,432 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 [2022-03-03 18:37:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:32,434 INFO L225 Difference]: With dead ends: 1537 [2022-03-03 18:37:32,434 INFO L226 Difference]: Without dead ends: 1442 [2022-03-03 18:37:32,434 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 [2022-03-03 18:37:32,435 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 [2022-03-03 18:37:32,435 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] [2022-03-03 18:37:32,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-03-03 18:37:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1244. [2022-03-03 18:37:32,449 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) [2022-03-03 18:37:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3776 transitions. [2022-03-03 18:37:32,451 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3776 transitions. Word has length 26 [2022-03-03 18:37:32,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:32,452 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3776 transitions. [2022-03-03 18:37:32,452 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) [2022-03-03 18:37:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3776 transitions. [2022-03-03 18:37:32,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:32,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:32,454 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] [2022-03-03 18:37:32,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 18:37:32,454 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:32,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:32,454 INFO L85 PathProgramCache]: Analyzing trace with hash -681181457, now seen corresponding path program 41 times [2022-03-03 18:37:32,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:32,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949958931] [2022-03-03 18:37:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:32,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:32,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:32,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949958931] [2022-03-03 18:37:32,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949958931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:32,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:32,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:32,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878184686] [2022-03-03 18:37:32,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:32,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:32,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:32,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:32,521 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) [2022-03-03 18:37:32,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:32,751 INFO L93 Difference]: Finished difference Result 1525 states and 4571 transitions. [2022-03-03 18:37:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:32,751 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 [2022-03-03 18:37:32,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:32,754 INFO L225 Difference]: With dead ends: 1525 [2022-03-03 18:37:32,754 INFO L226 Difference]: Without dead ends: 1377 [2022-03-03 18:37:32,754 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 [2022-03-03 18:37:32,755 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 [2022-03-03 18:37:32,755 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] [2022-03-03 18:37:32,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2022-03-03 18:37:32,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1245. [2022-03-03 18:37:32,770 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) [2022-03-03 18:37:32,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3786 transitions. [2022-03-03 18:37:32,773 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3786 transitions. Word has length 26 [2022-03-03 18:37:32,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:32,773 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3786 transitions. [2022-03-03 18:37:32,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:32,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3786 transitions. [2022-03-03 18:37:32,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:32,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:32,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:32,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 18:37:32,775 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:32,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:32,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2034862771, now seen corresponding path program 42 times [2022-03-03 18:37:32,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:32,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692018985] [2022-03-03 18:37:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:32,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:32,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:32,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:32,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692018985] [2022-03-03 18:37:32,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692018985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:32,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:32,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:32,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641053426] [2022-03-03 18:37:32,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:32,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:32,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:32,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:32,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:32,843 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) [2022-03-03 18:37:33,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:33,066 INFO L93 Difference]: Finished difference Result 1531 states and 4573 transitions. [2022-03-03 18:37:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:33,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:33,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:33,068 INFO L225 Difference]: With dead ends: 1531 [2022-03-03 18:37:33,068 INFO L226 Difference]: Without dead ends: 1401 [2022-03-03 18:37:33,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:33,069 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 [2022-03-03 18:37:33,069 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] [2022-03-03 18:37:33,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-03-03 18:37:33,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1297. [2022-03-03 18:37:33,083 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) [2022-03-03 18:37:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 3926 transitions. [2022-03-03 18:37:33,085 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 3926 transitions. Word has length 26 [2022-03-03 18:37:33,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:33,085 INFO L470 AbstractCegarLoop]: Abstraction has 1297 states and 3926 transitions. [2022-03-03 18:37:33,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:33,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 3926 transitions. [2022-03-03 18:37:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:33,087 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:33,087 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] [2022-03-03 18:37:33,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 18:37:33,087 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash -81406347, now seen corresponding path program 43 times [2022-03-03 18:37:33,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:33,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78043156] [2022-03-03 18:37:33,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:33,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:33,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:33,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78043156] [2022-03-03 18:37:33,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78043156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:33,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:33,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:33,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754038871] [2022-03-03 18:37:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:33,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:33,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:33,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:33,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:33,156 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) [2022-03-03 18:37:33,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:33,400 INFO L93 Difference]: Finished difference Result 1518 states and 4526 transitions. [2022-03-03 18:37:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:33,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:33,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:33,403 INFO L225 Difference]: With dead ends: 1518 [2022-03-03 18:37:33,403 INFO L226 Difference]: Without dead ends: 1395 [2022-03-03 18:37:33,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:33,404 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 62 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:33,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 287 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:33,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-03-03 18:37:33,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1271. [2022-03-03 18:37:33,419 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) [2022-03-03 18:37:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 3860 transitions. [2022-03-03 18:37:33,421 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 3860 transitions. Word has length 26 [2022-03-03 18:37:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:33,421 INFO L470 AbstractCegarLoop]: Abstraction has 1271 states and 3860 transitions. [2022-03-03 18:37:33,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 3860 transitions. [2022-03-03 18:37:33,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:33,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:33,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:33,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 18:37:33,423 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:33,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:33,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1828054805, now seen corresponding path program 44 times [2022-03-03 18:37:33,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:33,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935125248] [2022-03-03 18:37:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:33,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:33,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:33,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935125248] [2022-03-03 18:37:33,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935125248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:33,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:33,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:33,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365012260] [2022-03-03 18:37:33,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:33,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:33,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:33,487 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) [2022-03-03 18:37:33,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:33,682 INFO L93 Difference]: Finished difference Result 1636 states and 4901 transitions. [2022-03-03 18:37:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:33,686 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 [2022-03-03 18:37:33,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:33,688 INFO L225 Difference]: With dead ends: 1636 [2022-03-03 18:37:33,688 INFO L226 Difference]: Without dead ends: 1496 [2022-03-03 18:37:33,689 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 [2022-03-03 18:37:33,689 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:33,689 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] [2022-03-03 18:37:33,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-03 18:37:33,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1331. [2022-03-03 18:37:33,705 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) [2022-03-03 18:37:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 4038 transitions. [2022-03-03 18:37:33,707 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 4038 transitions. Word has length 26 [2022-03-03 18:37:33,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:33,707 INFO L470 AbstractCegarLoop]: Abstraction has 1331 states and 4038 transitions. [2022-03-03 18:37:33,707 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) [2022-03-03 18:37:33,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 4038 transitions. [2022-03-03 18:37:33,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:33,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:33,709 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] [2022-03-03 18:37:33,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 18:37:33,709 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:33,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:33,710 INFO L85 PathProgramCache]: Analyzing trace with hash 398238257, now seen corresponding path program 45 times [2022-03-03 18:37:33,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:33,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856075235] [2022-03-03 18:37:33,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:33,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:33,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:33,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856075235] [2022-03-03 18:37:33,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856075235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:33,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:33,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:33,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47777790] [2022-03-03 18:37:33,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:33,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:33,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:33,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:33,778 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) [2022-03-03 18:37:34,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:34,002 INFO L93 Difference]: Finished difference Result 1514 states and 4527 transitions. [2022-03-03 18:37:34,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:34,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:34,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:34,004 INFO L225 Difference]: With dead ends: 1514 [2022-03-03 18:37:34,005 INFO L226 Difference]: Without dead ends: 1403 [2022-03-03 18:37:34,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:34,005 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 [2022-03-03 18:37:34,005 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] [2022-03-03 18:37:34,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2022-03-03 18:37:34,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1295. [2022-03-03 18:37:34,029 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) [2022-03-03 18:37:34,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 3921 transitions. [2022-03-03 18:37:34,032 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 3921 transitions. Word has length 26 [2022-03-03 18:37:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:34,032 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 3921 transitions. [2022-03-03 18:37:34,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 3921 transitions. [2022-03-03 18:37:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:34,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:34,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:34,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 18:37:34,035 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:34,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:34,035 INFO L85 PathProgramCache]: Analyzing trace with hash -313086959, now seen corresponding path program 46 times [2022-03-03 18:37:34,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:34,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113915783] [2022-03-03 18:37:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:34,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:34,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:34,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113915783] [2022-03-03 18:37:34,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113915783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:34,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:34,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:34,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053511611] [2022-03-03 18:37:34,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:34,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:34,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:34,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:34,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:34,107 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) [2022-03-03 18:37:34,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:34,346 INFO L93 Difference]: Finished difference Result 1453 states and 4342 transitions. [2022-03-03 18:37:34,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:34,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:34,349 INFO L225 Difference]: With dead ends: 1453 [2022-03-03 18:37:34,349 INFO L226 Difference]: Without dead ends: 1374 [2022-03-03 18:37:34,350 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 [2022-03-03 18:37:34,350 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 [2022-03-03 18:37:34,350 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] [2022-03-03 18:37:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2022-03-03 18:37:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1319. [2022-03-03 18:37:34,369 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) [2022-03-03 18:37:34,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 3994 transitions. [2022-03-03 18:37:34,372 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 3994 transitions. Word has length 26 [2022-03-03 18:37:34,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:34,372 INFO L470 AbstractCegarLoop]: Abstraction has 1319 states and 3994 transitions. [2022-03-03 18:37:34,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:34,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 3994 transitions. [2022-03-03 18:37:34,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:34,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:34,375 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] [2022-03-03 18:37:34,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 18:37:34,375 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:34,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:34,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2045579411, now seen corresponding path program 47 times [2022-03-03 18:37:34,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:34,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106780449] [2022-03-03 18:37:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:34,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:34,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:34,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106780449] [2022-03-03 18:37:34,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106780449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:34,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:34,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:34,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436809188] [2022-03-03 18:37:34,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:34,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:34,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:34,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:34,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:34,448 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) [2022-03-03 18:37:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:34,686 INFO L93 Difference]: Finished difference Result 1550 states and 4630 transitions. [2022-03-03 18:37:34,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:34,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:34,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:34,689 INFO L225 Difference]: With dead ends: 1550 [2022-03-03 18:37:34,689 INFO L226 Difference]: Without dead ends: 1455 [2022-03-03 18:37:34,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:34,689 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:34,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 264 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:34,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-03 18:37:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1323. [2022-03-03 18:37:34,704 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) [2022-03-03 18:37:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 4007 transitions. [2022-03-03 18:37:34,706 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 4007 transitions. Word has length 26 [2022-03-03 18:37:34,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:34,706 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 4007 transitions. [2022-03-03 18:37:34,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 4007 transitions. [2022-03-03 18:37:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:34,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:34,708 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] [2022-03-03 18:37:34,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 18:37:34,709 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:34,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1882015501, now seen corresponding path program 48 times [2022-03-03 18:37:34,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:34,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368002659] [2022-03-03 18:37:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:34,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:34,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:34,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368002659] [2022-03-03 18:37:34,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368002659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:34,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:34,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:34,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25725770] [2022-03-03 18:37:34,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:34,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:34,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:34,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:34,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:34,781 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) [2022-03-03 18:37:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:35,010 INFO L93 Difference]: Finished difference Result 1551 states and 4630 transitions. [2022-03-03 18:37:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:35,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:35,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:35,013 INFO L225 Difference]: With dead ends: 1551 [2022-03-03 18:37:35,013 INFO L226 Difference]: Without dead ends: 1472 [2022-03-03 18:37:35,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:35,014 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 49 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:35,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 262 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-03-03 18:37:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1327. [2022-03-03 18:37:35,028 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) [2022-03-03 18:37:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 4015 transitions. [2022-03-03 18:37:35,030 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 4015 transitions. Word has length 26 [2022-03-03 18:37:35,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:35,031 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 4015 transitions. [2022-03-03 18:37:35,031 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) [2022-03-03 18:37:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 4015 transitions. [2022-03-03 18:37:35,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:35,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:35,032 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] [2022-03-03 18:37:35,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 18:37:35,033 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:35,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:35,033 INFO L85 PathProgramCache]: Analyzing trace with hash 97667705, now seen corresponding path program 49 times [2022-03-03 18:37:35,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:35,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507067993] [2022-03-03 18:37:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:35,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:35,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:35,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507067993] [2022-03-03 18:37:35,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507067993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:35,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:35,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:35,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073727278] [2022-03-03 18:37:35,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:35,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:35,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:35,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:35,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:35,122 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) [2022-03-03 18:37:35,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:35,369 INFO L93 Difference]: Finished difference Result 1593 states and 4759 transitions. [2022-03-03 18:37:35,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:35,369 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 [2022-03-03 18:37:35,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:35,372 INFO L225 Difference]: With dead ends: 1593 [2022-03-03 18:37:35,372 INFO L226 Difference]: Without dead ends: 1491 [2022-03-03 18:37:35,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:35,372 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 [2022-03-03 18:37:35,373 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] [2022-03-03 18:37:35,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-03-03 18:37:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1313. [2022-03-03 18:37:35,387 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) [2022-03-03 18:37:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 3985 transitions. [2022-03-03 18:37:35,390 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 3985 transitions. Word has length 26 [2022-03-03 18:37:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:35,390 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 3985 transitions. [2022-03-03 18:37:35,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 3985 transitions. [2022-03-03 18:37:35,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:35,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:35,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:35,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 18:37:35,392 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:35,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:35,393 INFO L85 PathProgramCache]: Analyzing trace with hash 860903061, now seen corresponding path program 50 times [2022-03-03 18:37:35,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:35,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66453704] [2022-03-03 18:37:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:35,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:35,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:35,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66453704] [2022-03-03 18:37:35,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66453704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:35,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:35,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:35,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519289864] [2022-03-03 18:37:35,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:35,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:35,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:35,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:35,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:35,455 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) [2022-03-03 18:37:35,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:35,656 INFO L93 Difference]: Finished difference Result 1603 states and 4787 transitions. [2022-03-03 18:37:35,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:35,656 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 [2022-03-03 18:37:35,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:35,658 INFO L225 Difference]: With dead ends: 1603 [2022-03-03 18:37:35,659 INFO L226 Difference]: Without dead ends: 1453 [2022-03-03 18:37:35,659 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 [2022-03-03 18:37:35,659 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 [2022-03-03 18:37:35,659 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] [2022-03-03 18:37:35,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-03 18:37:35,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1339. [2022-03-03 18:37:35,674 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) [2022-03-03 18:37:35,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 4059 transitions. [2022-03-03 18:37:35,676 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 4059 transitions. Word has length 26 [2022-03-03 18:37:35,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:35,676 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 4059 transitions. [2022-03-03 18:37:35,676 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) [2022-03-03 18:37:35,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 4059 transitions. [2022-03-03 18:37:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:35,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:35,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:35,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 18:37:35,678 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:35,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:35,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1255366057, now seen corresponding path program 51 times [2022-03-03 18:37:35,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:35,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253767721] [2022-03-03 18:37:35,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:35,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:35,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:35,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253767721] [2022-03-03 18:37:35,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253767721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:35,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:35,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:35,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563262312] [2022-03-03 18:37:35,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:35,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:35,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:35,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:35,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:35,759 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) [2022-03-03 18:37:36,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:36,041 INFO L93 Difference]: Finished difference Result 1564 states and 4681 transitions. [2022-03-03 18:37:36,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:36,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:36,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:36,044 INFO L225 Difference]: With dead ends: 1564 [2022-03-03 18:37:36,044 INFO L226 Difference]: Without dead ends: 1432 [2022-03-03 18:37:36,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:36,044 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 [2022-03-03 18:37:36,044 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] [2022-03-03 18:37:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2022-03-03 18:37:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1313. [2022-03-03 18:37:36,059 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) [2022-03-03 18:37:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 3991 transitions. [2022-03-03 18:37:36,061 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 3991 transitions. Word has length 26 [2022-03-03 18:37:36,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:36,062 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 3991 transitions. [2022-03-03 18:37:36,062 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) [2022-03-03 18:37:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 3991 transitions. [2022-03-03 18:37:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:36,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:36,063 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] [2022-03-03 18:37:36,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 18:37:36,064 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:36,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash 158416469, now seen corresponding path program 52 times [2022-03-03 18:37:36,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:36,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311119803] [2022-03-03 18:37:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:36,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:36,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:36,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311119803] [2022-03-03 18:37:36,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311119803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:36,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:36,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:36,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949311201] [2022-03-03 18:37:36,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:36,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:36,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:36,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:36,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:36,133 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) [2022-03-03 18:37:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:36,336 INFO L93 Difference]: Finished difference Result 1533 states and 4603 transitions. [2022-03-03 18:37:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:36,337 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 [2022-03-03 18:37:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:36,339 INFO L225 Difference]: With dead ends: 1533 [2022-03-03 18:37:36,340 INFO L226 Difference]: Without dead ends: 1436 [2022-03-03 18:37:36,340 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 [2022-03-03 18:37:36,340 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 [2022-03-03 18:37:36,340 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] [2022-03-03 18:37:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-03-03 18:37:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1330. [2022-03-03 18:37:36,356 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) [2022-03-03 18:37:36,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4042 transitions. [2022-03-03 18:37:36,359 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4042 transitions. Word has length 26 [2022-03-03 18:37:36,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:36,359 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 4042 transitions. [2022-03-03 18:37:36,359 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) [2022-03-03 18:37:36,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4042 transitions. [2022-03-03 18:37:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:36,361 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:36,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:36,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 18:37:36,361 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:36,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:36,362 INFO L85 PathProgramCache]: Analyzing trace with hash 657842583, now seen corresponding path program 53 times [2022-03-03 18:37:36,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:36,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820825248] [2022-03-03 18:37:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:36,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:36,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820825248] [2022-03-03 18:37:36,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820825248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:36,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:36,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:36,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146832862] [2022-03-03 18:37:36,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:36,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:36,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:36,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:36,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:36,453 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) [2022-03-03 18:37:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:36,707 INFO L93 Difference]: Finished difference Result 1540 states and 4628 transitions. [2022-03-03 18:37:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:36,708 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:36,710 INFO L225 Difference]: With dead ends: 1540 [2022-03-03 18:37:36,711 INFO L226 Difference]: Without dead ends: 1461 [2022-03-03 18:37:36,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:36,711 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 [2022-03-03 18:37:36,711 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] [2022-03-03 18:37:36,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-03-03 18:37:36,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1342. [2022-03-03 18:37:36,724 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) [2022-03-03 18:37:36,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 4076 transitions. [2022-03-03 18:37:36,726 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 4076 transitions. Word has length 26 [2022-03-03 18:37:36,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:36,726 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 4076 transitions. [2022-03-03 18:37:36,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:36,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 4076 transitions. [2022-03-03 18:37:36,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:36,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:36,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:36,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 18:37:36,728 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:36,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:36,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1053498921, now seen corresponding path program 54 times [2022-03-03 18:37:36,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:36,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225737316] [2022-03-03 18:37:36,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:36,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:36,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:36,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225737316] [2022-03-03 18:37:36,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225737316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:36,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:36,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:36,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351257907] [2022-03-03 18:37:36,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:36,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:36,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:36,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:36,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:36,810 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) [2022-03-03 18:37:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:37,072 INFO L93 Difference]: Finished difference Result 1587 states and 4770 transitions. [2022-03-03 18:37:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:37,075 INFO L225 Difference]: With dead ends: 1587 [2022-03-03 18:37:37,076 INFO L226 Difference]: Without dead ends: 1474 [2022-03-03 18:37:37,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:37,076 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:37,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 267 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-03-03 18:37:37,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1340. [2022-03-03 18:37:37,091 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) [2022-03-03 18:37:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4071 transitions. [2022-03-03 18:37:37,093 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4071 transitions. Word has length 26 [2022-03-03 18:37:37,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:37,094 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 4071 transitions. [2022-03-03 18:37:37,094 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) [2022-03-03 18:37:37,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4071 transitions. [2022-03-03 18:37:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:37,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:37,095 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] [2022-03-03 18:37:37,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 18:37:37,096 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:37,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:37,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1578418549, now seen corresponding path program 55 times [2022-03-03 18:37:37,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:37,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889661948] [2022-03-03 18:37:37,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:37,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:37,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:37,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:37,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889661948] [2022-03-03 18:37:37,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889661948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:37,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:37,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:37,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618977599] [2022-03-03 18:37:37,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:37,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:37,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:37,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:37,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:37,189 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) [2022-03-03 18:37:37,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:37,420 INFO L93 Difference]: Finished difference Result 1550 states and 4655 transitions. [2022-03-03 18:37:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:37,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:37,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:37,423 INFO L225 Difference]: With dead ends: 1550 [2022-03-03 18:37:37,423 INFO L226 Difference]: Without dead ends: 1456 [2022-03-03 18:37:37,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:37,424 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 [2022-03-03 18:37:37,424 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] [2022-03-03 18:37:37,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-03-03 18:37:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1323. [2022-03-03 18:37:37,438 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) [2022-03-03 18:37:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 4022 transitions. [2022-03-03 18:37:37,440 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 4022 transitions. Word has length 26 [2022-03-03 18:37:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:37,440 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 4022 transitions. [2022-03-03 18:37:37,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:37,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 4022 transitions. [2022-03-03 18:37:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:37,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:37,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:37,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 18:37:37,442 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:37,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:37,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2044579279, now seen corresponding path program 56 times [2022-03-03 18:37:37,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:37,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71869656] [2022-03-03 18:37:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:37,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:37,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:37,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71869656] [2022-03-03 18:37:37,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71869656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:37,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:37,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:37,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401928757] [2022-03-03 18:37:37,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:37,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:37,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:37,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:37,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:37,513 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) [2022-03-03 18:37:37,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:37,700 INFO L93 Difference]: Finished difference Result 1614 states and 4865 transitions. [2022-03-03 18:37:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:37,700 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 [2022-03-03 18:37:37,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:37,703 INFO L225 Difference]: With dead ends: 1614 [2022-03-03 18:37:37,703 INFO L226 Difference]: Without dead ends: 1535 [2022-03-03 18:37:37,703 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 [2022-03-03 18:37:37,703 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:37,703 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] [2022-03-03 18:37:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2022-03-03 18:37:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1344. [2022-03-03 18:37:37,719 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) [2022-03-03 18:37:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 4084 transitions. [2022-03-03 18:37:37,721 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 4084 transitions. Word has length 26 [2022-03-03 18:37:37,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:37,721 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 4084 transitions. [2022-03-03 18:37:37,721 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) [2022-03-03 18:37:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 4084 transitions. [2022-03-03 18:37:37,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:37,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:37,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:37,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 18:37:37,723 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:37,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1708471687, now seen corresponding path program 57 times [2022-03-03 18:37:37,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:37,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431378509] [2022-03-03 18:37:37,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:37,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:37,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:37,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:37,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431378509] [2022-03-03 18:37:37,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431378509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:37,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:37,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:37,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933792034] [2022-03-03 18:37:37,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:37,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:37,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:37,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:37,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:37,813 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) [2022-03-03 18:37:38,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:38,020 INFO L93 Difference]: Finished difference Result 1680 states and 5059 transitions. [2022-03-03 18:37:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:38,020 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 [2022-03-03 18:37:38,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:38,023 INFO L225 Difference]: With dead ends: 1680 [2022-03-03 18:37:38,024 INFO L226 Difference]: Without dead ends: 1585 [2022-03-03 18:37:38,024 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 [2022-03-03 18:37:38,024 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 [2022-03-03 18:37:38,025 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] [2022-03-03 18:37:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-03-03 18:37:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1362. [2022-03-03 18:37:38,040 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) [2022-03-03 18:37:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 4144 transitions. [2022-03-03 18:37:38,043 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 4144 transitions. Word has length 26 [2022-03-03 18:37:38,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:38,043 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 4144 transitions. [2022-03-03 18:37:38,043 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) [2022-03-03 18:37:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 4144 transitions. [2022-03-03 18:37:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:38,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:38,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:38,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 18:37:38,045 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:38,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:38,045 INFO L85 PathProgramCache]: Analyzing trace with hash 681459475, now seen corresponding path program 58 times [2022-03-03 18:37:38,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:38,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813491829] [2022-03-03 18:37:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:38,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:38,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813491829] [2022-03-03 18:37:38,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813491829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:38,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:38,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:38,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591209019] [2022-03-03 18:37:38,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:38,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:38,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:38,106 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) [2022-03-03 18:37:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:38,298 INFO L93 Difference]: Finished difference Result 1581 states and 4769 transitions. [2022-03-03 18:37:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:38,298 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 [2022-03-03 18:37:38,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:38,301 INFO L225 Difference]: With dead ends: 1581 [2022-03-03 18:37:38,301 INFO L226 Difference]: Without dead ends: 1490 [2022-03-03 18:37:38,301 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 [2022-03-03 18:37:38,301 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:38,301 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] [2022-03-03 18:37:38,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-03-03 18:37:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1345. [2022-03-03 18:37:38,318 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) [2022-03-03 18:37:38,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 4092 transitions. [2022-03-03 18:37:38,321 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 4092 transitions. Word has length 26 [2022-03-03 18:37:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:38,321 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 4092 transitions. [2022-03-03 18:37:38,321 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) [2022-03-03 18:37:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 4092 transitions. [2022-03-03 18:37:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:38,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:38,323 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] [2022-03-03 18:37:38,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 18:37:38,323 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:38,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:38,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1534854127, now seen corresponding path program 59 times [2022-03-03 18:37:38,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:38,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941563471] [2022-03-03 18:37:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:38,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:38,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:38,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941563471] [2022-03-03 18:37:38,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941563471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:38,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:38,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:38,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000738562] [2022-03-03 18:37:38,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:38,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:38,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:38,407 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) [2022-03-03 18:37:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:38,629 INFO L93 Difference]: Finished difference Result 1471 states and 4427 transitions. [2022-03-03 18:37:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:38,630 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 [2022-03-03 18:37:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:38,632 INFO L225 Difference]: With dead ends: 1471 [2022-03-03 18:37:38,632 INFO L226 Difference]: Without dead ends: 1392 [2022-03-03 18:37:38,633 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 [2022-03-03 18:37:38,633 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:38,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 226 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:38,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-03 18:37:38,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1357. [2022-03-03 18:37:38,648 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) [2022-03-03 18:37:38,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 4126 transitions. [2022-03-03 18:37:38,651 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 4126 transitions. Word has length 26 [2022-03-03 18:37:38,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:38,651 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 4126 transitions. [2022-03-03 18:37:38,651 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) [2022-03-03 18:37:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 4126 transitions. [2022-03-03 18:37:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:38,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:38,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:38,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 18:37:38,653 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash 823812243, now seen corresponding path program 60 times [2022-03-03 18:37:38,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:38,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087681585] [2022-03-03 18:37:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:38,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:38,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087681585] [2022-03-03 18:37:38,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087681585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:38,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:38,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:38,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218083170] [2022-03-03 18:37:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:38,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:38,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:38,735 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) [2022-03-03 18:37:38,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:38,975 INFO L93 Difference]: Finished difference Result 1521 states and 4567 transitions. [2022-03-03 18:37:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:38,976 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 [2022-03-03 18:37:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:38,978 INFO L225 Difference]: With dead ends: 1521 [2022-03-03 18:37:38,978 INFO L226 Difference]: Without dead ends: 1426 [2022-03-03 18:37:38,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:38,979 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 [2022-03-03 18:37:38,979 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] [2022-03-03 18:37:38,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-03-03 18:37:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1365. [2022-03-03 18:37:38,993 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) [2022-03-03 18:37:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 4154 transitions. [2022-03-03 18:37:38,995 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 4154 transitions. Word has length 26 [2022-03-03 18:37:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:38,996 INFO L470 AbstractCegarLoop]: Abstraction has 1365 states and 4154 transitions. [2022-03-03 18:37:38,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 4154 transitions. [2022-03-03 18:37:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:38,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:38,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:38,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 18:37:38,997 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:38,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:38,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1191184627, now seen corresponding path program 61 times [2022-03-03 18:37:38,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:38,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855829355] [2022-03-03 18:37:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:38,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:39,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:39,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855829355] [2022-03-03 18:37:39,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855829355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:39,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:39,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:39,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598009416] [2022-03-03 18:37:39,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:39,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:39,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:39,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:39,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:39,083 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) [2022-03-03 18:37:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:39,308 INFO L93 Difference]: Finished difference Result 1567 states and 4715 transitions. [2022-03-03 18:37:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:39,308 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 [2022-03-03 18:37:39,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:39,311 INFO L225 Difference]: With dead ends: 1567 [2022-03-03 18:37:39,311 INFO L226 Difference]: Without dead ends: 1488 [2022-03-03 18:37:39,311 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 [2022-03-03 18:37:39,311 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:39,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 228 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:39,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-03-03 18:37:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1372. [2022-03-03 18:37:39,326 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) [2022-03-03 18:37:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 4173 transitions. [2022-03-03 18:37:39,328 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 4173 transitions. Word has length 26 [2022-03-03 18:37:39,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:39,328 INFO L470 AbstractCegarLoop]: Abstraction has 1372 states and 4173 transitions. [2022-03-03 18:37:39,328 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) [2022-03-03 18:37:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 4173 transitions. [2022-03-03 18:37:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:39,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:39,330 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] [2022-03-03 18:37:39,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 18:37:39,330 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:39,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:39,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1124099463, now seen corresponding path program 62 times [2022-03-03 18:37:39,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:39,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924680823] [2022-03-03 18:37:39,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:39,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:39,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:39,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924680823] [2022-03-03 18:37:39,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924680823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:39,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:39,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:39,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631953132] [2022-03-03 18:37:39,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:39,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:39,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:39,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:39,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:39,397 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) [2022-03-03 18:37:39,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:39,617 INFO L93 Difference]: Finished difference Result 1591 states and 4779 transitions. [2022-03-03 18:37:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:39,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:39,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:39,620 INFO L225 Difference]: With dead ends: 1591 [2022-03-03 18:37:39,620 INFO L226 Difference]: Without dead ends: 1496 [2022-03-03 18:37:39,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:39,621 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 [2022-03-03 18:37:39,621 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] [2022-03-03 18:37:39,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-03 18:37:39,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1377. [2022-03-03 18:37:39,635 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) [2022-03-03 18:37:39,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 4190 transitions. [2022-03-03 18:37:39,638 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 4190 transitions. Word has length 26 [2022-03-03 18:37:39,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:39,638 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 4190 transitions. [2022-03-03 18:37:39,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 4190 transitions. [2022-03-03 18:37:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:39,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:39,640 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] [2022-03-03 18:37:39,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 18:37:39,640 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash -478678661, now seen corresponding path program 63 times [2022-03-03 18:37:39,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:39,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238225559] [2022-03-03 18:37:39,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:39,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:39,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:39,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238225559] [2022-03-03 18:37:39,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238225559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:39,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:39,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:39,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033349320] [2022-03-03 18:37:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:39,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:39,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:39,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:39,721 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) [2022-03-03 18:37:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:39,956 INFO L93 Difference]: Finished difference Result 1579 states and 4742 transitions. [2022-03-03 18:37:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:39,956 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 [2022-03-03 18:37:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:39,958 INFO L225 Difference]: With dead ends: 1579 [2022-03-03 18:37:39,959 INFO L226 Difference]: Without dead ends: 1491 [2022-03-03 18:37:39,959 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 [2022-03-03 18:37:39,959 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:39,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 232 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-03-03 18:37:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1383. [2022-03-03 18:37:39,974 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) [2022-03-03 18:37:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 4209 transitions. [2022-03-03 18:37:39,976 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 4209 transitions. Word has length 26 [2022-03-03 18:37:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:39,976 INFO L470 AbstractCegarLoop]: Abstraction has 1383 states and 4209 transitions. [2022-03-03 18:37:39,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 4209 transitions. [2022-03-03 18:37:39,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:39,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:39,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:39,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 18:37:39,978 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:39,979 INFO L85 PathProgramCache]: Analyzing trace with hash -390741927, now seen corresponding path program 64 times [2022-03-03 18:37:39,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:39,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725804547] [2022-03-03 18:37:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:40,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:40,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725804547] [2022-03-03 18:37:40,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725804547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:40,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:40,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:40,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807758249] [2022-03-03 18:37:40,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:40,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:40,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:40,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:40,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:40,053 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) [2022-03-03 18:37:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:40,278 INFO L93 Difference]: Finished difference Result 1558 states and 4681 transitions. [2022-03-03 18:37:40,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:40,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:40,281 INFO L225 Difference]: With dead ends: 1558 [2022-03-03 18:37:40,281 INFO L226 Difference]: Without dead ends: 1464 [2022-03-03 18:37:40,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:40,282 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 [2022-03-03 18:37:40,282 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] [2022-03-03 18:37:40,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-03 18:37:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1385. [2022-03-03 18:37:40,297 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) [2022-03-03 18:37:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 4217 transitions. [2022-03-03 18:37:40,299 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 4217 transitions. Word has length 26 [2022-03-03 18:37:40,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:40,299 INFO L470 AbstractCegarLoop]: Abstraction has 1385 states and 4217 transitions. [2022-03-03 18:37:40,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 4217 transitions. [2022-03-03 18:37:40,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:40,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:40,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:40,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 18:37:40,306 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:40,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:40,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1741662093, now seen corresponding path program 65 times [2022-03-03 18:37:40,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:40,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137311484] [2022-03-03 18:37:40,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:40,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:40,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:40,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137311484] [2022-03-03 18:37:40,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137311484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:40,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:40,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:40,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201351796] [2022-03-03 18:37:40,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:40,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:40,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:40,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:40,378 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) [2022-03-03 18:37:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:40,601 INFO L93 Difference]: Finished difference Result 1534 states and 4620 transitions. [2022-03-03 18:37:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:40,602 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 [2022-03-03 18:37:40,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:40,604 INFO L225 Difference]: With dead ends: 1534 [2022-03-03 18:37:40,604 INFO L226 Difference]: Without dead ends: 1455 [2022-03-03 18:37:40,604 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 [2022-03-03 18:37:40,605 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 [2022-03-03 18:37:40,605 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] [2022-03-03 18:37:40,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-03 18:37:40,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1391. [2022-03-03 18:37:40,619 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) [2022-03-03 18:37:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4240 transitions. [2022-03-03 18:37:40,621 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4240 transitions. Word has length 26 [2022-03-03 18:37:40,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:40,621 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4240 transitions. [2022-03-03 18:37:40,621 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) [2022-03-03 18:37:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4240 transitions. [2022-03-03 18:37:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:40,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:40,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:40,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 18:37:40,623 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:40,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:40,623 INFO L85 PathProgramCache]: Analyzing trace with hash 617004277, now seen corresponding path program 66 times [2022-03-03 18:37:40,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:40,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634124313] [2022-03-03 18:37:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:40,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:40,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:40,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:40,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634124313] [2022-03-03 18:37:40,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634124313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:40,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:40,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:40,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015149600] [2022-03-03 18:37:40,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:40,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:40,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:40,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:40,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:40,719 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) [2022-03-03 18:37:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:40,957 INFO L93 Difference]: Finished difference Result 1569 states and 4729 transitions. [2022-03-03 18:37:40,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:40,958 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:40,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:40,960 INFO L225 Difference]: With dead ends: 1569 [2022-03-03 18:37:40,960 INFO L226 Difference]: Without dead ends: 1474 [2022-03-03 18:37:40,961 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 [2022-03-03 18:37:40,961 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:40,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 230 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-03-03 18:37:40,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1400. [2022-03-03 18:37:40,975 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) [2022-03-03 18:37:40,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 4271 transitions. [2022-03-03 18:37:40,977 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 4271 transitions. Word has length 26 [2022-03-03 18:37:40,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:40,977 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 4271 transitions. [2022-03-03 18:37:40,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 4271 transitions. [2022-03-03 18:37:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:40,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:40,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:40,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 18:37:40,979 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:40,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:40,979 INFO L85 PathProgramCache]: Analyzing trace with hash -40159245, now seen corresponding path program 67 times [2022-03-03 18:37:40,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:40,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873972165] [2022-03-03 18:37:40,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:40,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:41,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:41,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:41,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873972165] [2022-03-03 18:37:41,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873972165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:41,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:41,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:41,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283912095] [2022-03-03 18:37:41,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:41,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:41,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:41,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:41,052 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) [2022-03-03 18:37:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:41,272 INFO L93 Difference]: Finished difference Result 1559 states and 4705 transitions. [2022-03-03 18:37:41,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:41,273 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:41,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:41,275 INFO L225 Difference]: With dead ends: 1559 [2022-03-03 18:37:41,275 INFO L226 Difference]: Without dead ends: 1474 [2022-03-03 18:37:41,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:41,276 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 [2022-03-03 18:37:41,276 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] [2022-03-03 18:37:41,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-03-03 18:37:41,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1404. [2022-03-03 18:37:41,291 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) [2022-03-03 18:37:41,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 4280 transitions. [2022-03-03 18:37:41,293 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 4280 transitions. Word has length 26 [2022-03-03 18:37:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:41,294 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 4280 transitions. [2022-03-03 18:37:41,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:41,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 4280 transitions. [2022-03-03 18:37:41,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:41,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:41,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:41,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 18:37:41,296 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1368725167, now seen corresponding path program 68 times [2022-03-03 18:37:41,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:41,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339049366] [2022-03-03 18:37:41,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:41,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:41,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:41,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339049366] [2022-03-03 18:37:41,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339049366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:41,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:41,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:41,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189580257] [2022-03-03 18:37:41,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:41,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:41,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:41,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:41,373 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) [2022-03-03 18:37:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:41,611 INFO L93 Difference]: Finished difference Result 1599 states and 4818 transitions. [2022-03-03 18:37:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:41,611 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 [2022-03-03 18:37:41,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:41,614 INFO L225 Difference]: With dead ends: 1599 [2022-03-03 18:37:41,614 INFO L226 Difference]: Without dead ends: 1496 [2022-03-03 18:37:41,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:41,614 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 [2022-03-03 18:37:41,614 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] [2022-03-03 18:37:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-03 18:37:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1402. [2022-03-03 18:37:41,633 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) [2022-03-03 18:37:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 4280 transitions. [2022-03-03 18:37:41,635 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 4280 transitions. Word has length 26 [2022-03-03 18:37:41,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:41,635 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 4280 transitions. [2022-03-03 18:37:41,635 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) [2022-03-03 18:37:41,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 4280 transitions. [2022-03-03 18:37:41,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:41,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:41,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:41,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 18:37:41,637 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:41,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:41,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1591364523, now seen corresponding path program 69 times [2022-03-03 18:37:41,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:41,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349189173] [2022-03-03 18:37:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:41,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:41,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:41,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349189173] [2022-03-03 18:37:41,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349189173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:41,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:41,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:41,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702787573] [2022-03-03 18:37:41,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:41,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:41,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:41,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:41,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:41,719 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) [2022-03-03 18:37:41,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:41,934 INFO L93 Difference]: Finished difference Result 1713 states and 5194 transitions. [2022-03-03 18:37:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:41,934 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:41,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:41,937 INFO L225 Difference]: With dead ends: 1713 [2022-03-03 18:37:41,937 INFO L226 Difference]: Without dead ends: 1634 [2022-03-03 18:37:41,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:41,937 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 [2022-03-03 18:37:41,937 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] [2022-03-03 18:37:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-03-03 18:37:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1411. [2022-03-03 18:37:41,952 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) [2022-03-03 18:37:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 4315 transitions. [2022-03-03 18:37:41,954 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 4315 transitions. Word has length 26 [2022-03-03 18:37:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:41,954 INFO L470 AbstractCegarLoop]: Abstraction has 1411 states and 4315 transitions. [2022-03-03 18:37:41,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 4315 transitions. [2022-03-03 18:37:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:41,956 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:41,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:41,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 18:37:41,956 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:41,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:41,956 INFO L85 PathProgramCache]: Analyzing trace with hash 388318683, now seen corresponding path program 70 times [2022-03-03 18:37:41,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:41,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995616662] [2022-03-03 18:37:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:41,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:42,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:42,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995616662] [2022-03-03 18:37:42,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995616662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:42,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:42,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:42,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209713800] [2022-03-03 18:37:42,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:42,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:42,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:42,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:42,030 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) [2022-03-03 18:37:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:42,251 INFO L93 Difference]: Finished difference Result 1734 states and 5229 transitions. [2022-03-03 18:37:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:42,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:42,258 INFO L225 Difference]: With dead ends: 1734 [2022-03-03 18:37:42,258 INFO L226 Difference]: Without dead ends: 1639 [2022-03-03 18:37:42,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:42,259 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 [2022-03-03 18:37:42,259 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] [2022-03-03 18:37:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-03-03 18:37:42,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1415. [2022-03-03 18:37:42,274 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) [2022-03-03 18:37:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4326 transitions. [2022-03-03 18:37:42,277 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4326 transitions. Word has length 26 [2022-03-03 18:37:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:42,277 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 4326 transitions. [2022-03-03 18:37:42,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4326 transitions. [2022-03-03 18:37:42,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:42,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:42,279 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] [2022-03-03 18:37:42,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 18:37:42,279 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:42,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1311458227, now seen corresponding path program 71 times [2022-03-03 18:37:42,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:42,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581572466] [2022-03-03 18:37:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:42,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:42,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:42,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581572466] [2022-03-03 18:37:42,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581572466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:42,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:42,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:42,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682359472] [2022-03-03 18:37:42,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:42,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:42,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:42,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:42,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:42,350 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) [2022-03-03 18:37:42,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:42,572 INFO L93 Difference]: Finished difference Result 1641 states and 4975 transitions. [2022-03-03 18:37:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:42,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:42,575 INFO L225 Difference]: With dead ends: 1641 [2022-03-03 18:37:42,575 INFO L226 Difference]: Without dead ends: 1551 [2022-03-03 18:37:42,576 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 [2022-03-03 18:37:42,576 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 [2022-03-03 18:37:42,576 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] [2022-03-03 18:37:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-03-03 18:37:42,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1409. [2022-03-03 18:37:42,591 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) [2022-03-03 18:37:42,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 4311 transitions. [2022-03-03 18:37:42,593 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 4311 transitions. Word has length 26 [2022-03-03 18:37:42,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:42,593 INFO L470 AbstractCegarLoop]: Abstraction has 1409 states and 4311 transitions. [2022-03-03 18:37:42,593 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) [2022-03-03 18:37:42,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 4311 transitions. [2022-03-03 18:37:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:42,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:42,595 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] [2022-03-03 18:37:42,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 18:37:42,595 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:42,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1906106807, now seen corresponding path program 72 times [2022-03-03 18:37:42,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:42,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381449460] [2022-03-03 18:37:42,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:42,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:42,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:42,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381449460] [2022-03-03 18:37:42,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381449460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:42,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:42,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:42,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903957706] [2022-03-03 18:37:42,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:42,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:42,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:42,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:42,673 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) [2022-03-03 18:37:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:42,868 INFO L93 Difference]: Finished difference Result 1735 states and 5254 transitions. [2022-03-03 18:37:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:42,868 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 [2022-03-03 18:37:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:42,871 INFO L225 Difference]: With dead ends: 1735 [2022-03-03 18:37:42,871 INFO L226 Difference]: Without dead ends: 1656 [2022-03-03 18:37:42,871 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 [2022-03-03 18:37:42,871 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:42,872 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] [2022-03-03 18:37:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2022-03-03 18:37:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1445. [2022-03-03 18:37:42,886 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) [2022-03-03 18:37:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 4418 transitions. [2022-03-03 18:37:42,888 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 4418 transitions. Word has length 26 [2022-03-03 18:37:42,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:42,889 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 4418 transitions. [2022-03-03 18:37:42,889 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) [2022-03-03 18:37:42,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 4418 transitions. [2022-03-03 18:37:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:42,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:42,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:42,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 18:37:42,891 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:42,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:42,891 INFO L85 PathProgramCache]: Analyzing trace with hash -30194119, now seen corresponding path program 73 times [2022-03-03 18:37:42,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:42,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276967083] [2022-03-03 18:37:42,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:42,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:42,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:42,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:42,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276967083] [2022-03-03 18:37:42,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276967083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:42,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:42,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:42,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846239030] [2022-03-03 18:37:42,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:42,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:42,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:42,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:42,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:42,977 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) [2022-03-03 18:37:43,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:43,211 INFO L93 Difference]: Finished difference Result 1792 states and 5392 transitions. [2022-03-03 18:37:43,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:43,212 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 [2022-03-03 18:37:43,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:43,214 INFO L225 Difference]: With dead ends: 1792 [2022-03-03 18:37:43,215 INFO L226 Difference]: Without dead ends: 1611 [2022-03-03 18:37:43,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:43,215 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:43,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 287 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:43,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-03-03 18:37:43,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1435. [2022-03-03 18:37:43,229 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) [2022-03-03 18:37:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 4394 transitions. [2022-03-03 18:37:43,232 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 4394 transitions. Word has length 26 [2022-03-03 18:37:43,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:43,232 INFO L470 AbstractCegarLoop]: Abstraction has 1435 states and 4394 transitions. [2022-03-03 18:37:43,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:43,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 4394 transitions. [2022-03-03 18:37:43,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:43,234 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:43,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:43,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 18:37:43,234 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:43,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:43,234 INFO L85 PathProgramCache]: Analyzing trace with hash 188366037, now seen corresponding path program 74 times [2022-03-03 18:37:43,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:43,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870100989] [2022-03-03 18:37:43,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:43,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:43,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:43,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870100989] [2022-03-03 18:37:43,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870100989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:43,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:43,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:43,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259710540] [2022-03-03 18:37:43,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:43,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:43,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:43,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:43,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:43,322 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) [2022-03-03 18:37:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:43,544 INFO L93 Difference]: Finished difference Result 1663 states and 5025 transitions. [2022-03-03 18:37:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:43,545 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 [2022-03-03 18:37:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:43,548 INFO L225 Difference]: With dead ends: 1663 [2022-03-03 18:37:43,548 INFO L226 Difference]: Without dead ends: 1584 [2022-03-03 18:37:43,548 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 [2022-03-03 18:37:43,548 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 [2022-03-03 18:37:43,548 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] [2022-03-03 18:37:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-03-03 18:37:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1437. [2022-03-03 18:37:43,562 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) [2022-03-03 18:37:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 4401 transitions. [2022-03-03 18:37:43,565 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 4401 transitions. Word has length 26 [2022-03-03 18:37:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:43,565 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 4401 transitions. [2022-03-03 18:37:43,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 4401 transitions. [2022-03-03 18:37:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:43,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:43,567 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] [2022-03-03 18:37:43,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 18:37:43,567 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1747934889, now seen corresponding path program 75 times [2022-03-03 18:37:43,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:43,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152122873] [2022-03-03 18:37:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:43,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:43,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152122873] [2022-03-03 18:37:43,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152122873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:43,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:43,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:43,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807505874] [2022-03-03 18:37:43,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:43,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:43,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:43,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:43,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:43,640 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) [2022-03-03 18:37:43,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:43,876 INFO L93 Difference]: Finished difference Result 1626 states and 4884 transitions. [2022-03-03 18:37:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:43,876 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 [2022-03-03 18:37:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:43,879 INFO L225 Difference]: With dead ends: 1626 [2022-03-03 18:37:43,879 INFO L226 Difference]: Without dead ends: 1531 [2022-03-03 18:37:43,879 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 [2022-03-03 18:37:43,880 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:43,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 260 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:43,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-03-03 18:37:43,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1451. [2022-03-03 18:37:43,895 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) [2022-03-03 18:37:43,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 4438 transitions. [2022-03-03 18:37:43,897 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 4438 transitions. Word has length 26 [2022-03-03 18:37:43,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:43,897 INFO L470 AbstractCegarLoop]: Abstraction has 1451 states and 4438 transitions. [2022-03-03 18:37:43,897 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) [2022-03-03 18:37:43,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 4438 transitions. [2022-03-03 18:37:43,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:43,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:43,899 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] [2022-03-03 18:37:43,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 18:37:43,899 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:43,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:43,899 INFO L85 PathProgramCache]: Analyzing trace with hash 599120701, now seen corresponding path program 76 times [2022-03-03 18:37:43,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:43,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235557638] [2022-03-03 18:37:43,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:43,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:43,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:43,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235557638] [2022-03-03 18:37:43,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235557638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:43,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:43,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:43,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429363208] [2022-03-03 18:37:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:43,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:43,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:43,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:43,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:43,968 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) [2022-03-03 18:37:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:44,147 INFO L93 Difference]: Finished difference Result 1742 states and 5269 transitions. [2022-03-03 18:37:44,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:44,147 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 [2022-03-03 18:37:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:44,150 INFO L225 Difference]: With dead ends: 1742 [2022-03-03 18:37:44,150 INFO L226 Difference]: Without dead ends: 1653 [2022-03-03 18:37:44,150 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 [2022-03-03 18:37:44,150 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:44,150 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] [2022-03-03 18:37:44,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-03-03 18:37:44,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1461. [2022-03-03 18:37:44,166 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) [2022-03-03 18:37:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4467 transitions. [2022-03-03 18:37:44,168 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4467 transitions. Word has length 26 [2022-03-03 18:37:44,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:44,169 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4467 transitions. [2022-03-03 18:37:44,169 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) [2022-03-03 18:37:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4467 transitions. [2022-03-03 18:37:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:44,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:44,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:44,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 18:37:44,171 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:44,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1244541503, now seen corresponding path program 77 times [2022-03-03 18:37:44,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:44,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616172889] [2022-03-03 18:37:44,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:44,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:44,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:44,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616172889] [2022-03-03 18:37:44,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616172889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:44,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:44,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:44,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836025431] [2022-03-03 18:37:44,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:44,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:44,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:44,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:44,246 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) [2022-03-03 18:37:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:44,486 INFO L93 Difference]: Finished difference Result 1678 states and 5043 transitions. [2022-03-03 18:37:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:44,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:44,490 INFO L225 Difference]: With dead ends: 1678 [2022-03-03 18:37:44,490 INFO L226 Difference]: Without dead ends: 1590 [2022-03-03 18:37:44,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:44,490 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 [2022-03-03 18:37:44,490 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] [2022-03-03 18:37:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2022-03-03 18:37:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1461. [2022-03-03 18:37:44,507 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) [2022-03-03 18:37:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4467 transitions. [2022-03-03 18:37:44,510 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4467 transitions. Word has length 26 [2022-03-03 18:37:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:44,510 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4467 transitions. [2022-03-03 18:37:44,510 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) [2022-03-03 18:37:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4467 transitions. [2022-03-03 18:37:44,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:44,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:44,512 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] [2022-03-03 18:37:44,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 18:37:44,512 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1332478237, now seen corresponding path program 78 times [2022-03-03 18:37:44,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:44,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115832780] [2022-03-03 18:37:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:44,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:44,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:44,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115832780] [2022-03-03 18:37:44,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115832780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:44,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:44,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:44,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823767368] [2022-03-03 18:37:44,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:44,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:44,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:44,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:44,601 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) [2022-03-03 18:37:44,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:44,820 INFO L93 Difference]: Finished difference Result 1816 states and 5475 transitions. [2022-03-03 18:37:44,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:44,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:44,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:44,823 INFO L225 Difference]: With dead ends: 1816 [2022-03-03 18:37:44,823 INFO L226 Difference]: Without dead ends: 1722 [2022-03-03 18:37:44,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:44,824 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 [2022-03-03 18:37:44,824 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] [2022-03-03 18:37:44,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-03-03 18:37:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1485. [2022-03-03 18:37:44,839 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) [2022-03-03 18:37:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 4546 transitions. [2022-03-03 18:37:44,841 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 4546 transitions. Word has length 26 [2022-03-03 18:37:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:44,841 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 4546 transitions. [2022-03-03 18:37:44,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:44,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 4546 transitions. [2022-03-03 18:37:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:44,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:44,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:44,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 18:37:44,843 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:44,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:44,844 INFO L85 PathProgramCache]: Analyzing trace with hash -430758349, now seen corresponding path program 79 times [2022-03-03 18:37:44,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:44,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498703543] [2022-03-03 18:37:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:44,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:44,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:44,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498703543] [2022-03-03 18:37:44,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498703543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:44,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:44,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:44,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412042520] [2022-03-03 18:37:44,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:44,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:44,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:44,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:44,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:44,909 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) [2022-03-03 18:37:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:45,102 INFO L93 Difference]: Finished difference Result 1851 states and 5576 transitions. [2022-03-03 18:37:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:45,102 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 [2022-03-03 18:37:45,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:45,106 INFO L225 Difference]: With dead ends: 1851 [2022-03-03 18:37:45,106 INFO L226 Difference]: Without dead ends: 1679 [2022-03-03 18:37:45,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:45,106 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:45,106 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] [2022-03-03 18:37:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2022-03-03 18:37:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1453. [2022-03-03 18:37:45,130 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) [2022-03-03 18:37:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 4436 transitions. [2022-03-03 18:37:45,132 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 4436 transitions. Word has length 26 [2022-03-03 18:37:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:45,133 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 4436 transitions. [2022-03-03 18:37:45,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:45,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 4436 transitions. [2022-03-03 18:37:45,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:45,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:45,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:45,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 18:37:45,136 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:45,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2010189995, now seen corresponding path program 80 times [2022-03-03 18:37:45,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:45,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131176492] [2022-03-03 18:37:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:45,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:45,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:45,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131176492] [2022-03-03 18:37:45,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131176492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:45,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:45,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:45,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478222478] [2022-03-03 18:37:45,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:45,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:45,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:45,203 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) [2022-03-03 18:37:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:45,445 INFO L93 Difference]: Finished difference Result 1732 states and 5178 transitions. [2022-03-03 18:37:45,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:45,445 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:45,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:45,448 INFO L225 Difference]: With dead ends: 1732 [2022-03-03 18:37:45,448 INFO L226 Difference]: Without dead ends: 1593 [2022-03-03 18:37:45,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:45,449 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 [2022-03-03 18:37:45,449 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] [2022-03-03 18:37:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2022-03-03 18:37:45,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1443. [2022-03-03 18:37:45,463 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) [2022-03-03 18:37:45,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 4396 transitions. [2022-03-03 18:37:45,465 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 4396 transitions. Word has length 26 [2022-03-03 18:37:45,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:45,465 INFO L470 AbstractCegarLoop]: Abstraction has 1443 states and 4396 transitions. [2022-03-03 18:37:45,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:45,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 4396 transitions. [2022-03-03 18:37:45,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:45,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:45,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:45,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 18:37:45,468 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:45,468 INFO L85 PathProgramCache]: Analyzing trace with hash -209972843, now seen corresponding path program 81 times [2022-03-03 18:37:45,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:45,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220373400] [2022-03-03 18:37:45,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:45,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:45,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:45,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220373400] [2022-03-03 18:37:45,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220373400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:45,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:45,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:45,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089265584] [2022-03-03 18:37:45,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:45,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:45,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:45,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:45,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:45,538 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) [2022-03-03 18:37:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:45,717 INFO L93 Difference]: Finished difference Result 1745 states and 5234 transitions. [2022-03-03 18:37:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:45,717 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 [2022-03-03 18:37:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:45,720 INFO L225 Difference]: With dead ends: 1745 [2022-03-03 18:37:45,720 INFO L226 Difference]: Without dead ends: 1660 [2022-03-03 18:37:45,720 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 [2022-03-03 18:37:45,720 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:45,720 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] [2022-03-03 18:37:45,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-03-03 18:37:45,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1481. [2022-03-03 18:37:45,735 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) [2022-03-03 18:37:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4515 transitions. [2022-03-03 18:37:45,738 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4515 transitions. Word has length 26 [2022-03-03 18:37:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:45,738 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4515 transitions. [2022-03-03 18:37:45,738 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) [2022-03-03 18:37:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4515 transitions. [2022-03-03 18:37:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:45,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:45,740 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] [2022-03-03 18:37:45,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 18:37:45,740 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:45,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:45,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2146273769, now seen corresponding path program 82 times [2022-03-03 18:37:45,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:45,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414202511] [2022-03-03 18:37:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:45,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:45,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414202511] [2022-03-03 18:37:45,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414202511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:45,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:45,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:45,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676558584] [2022-03-03 18:37:45,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:45,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:45,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:45,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:45,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:45,974 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) [2022-03-03 18:37:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:46,214 INFO L93 Difference]: Finished difference Result 1788 states and 5355 transitions. [2022-03-03 18:37:46,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:46,215 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:46,218 INFO L225 Difference]: With dead ends: 1788 [2022-03-03 18:37:46,218 INFO L226 Difference]: Without dead ends: 1595 [2022-03-03 18:37:46,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:46,218 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 [2022-03-03 18:37:46,218 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] [2022-03-03 18:37:46,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2022-03-03 18:37:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1441. [2022-03-03 18:37:46,237 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) [2022-03-03 18:37:46,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 4389 transitions. [2022-03-03 18:37:46,239 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 4389 transitions. Word has length 26 [2022-03-03 18:37:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:46,240 INFO L470 AbstractCegarLoop]: Abstraction has 1441 states and 4389 transitions. [2022-03-03 18:37:46,240 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) [2022-03-03 18:37:46,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 4389 transitions. [2022-03-03 18:37:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:46,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:46,242 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] [2022-03-03 18:37:46,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 18:37:46,242 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash 671411669, now seen corresponding path program 83 times [2022-03-03 18:37:46,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:46,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526767460] [2022-03-03 18:37:46,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:46,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:46,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:46,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526767460] [2022-03-03 18:37:46,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526767460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:46,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:46,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:46,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509421381] [2022-03-03 18:37:46,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:46,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:46,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:46,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:46,310 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) [2022-03-03 18:37:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:46,535 INFO L93 Difference]: Finished difference Result 1658 states and 4979 transitions. [2022-03-03 18:37:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:46,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:46,538 INFO L225 Difference]: With dead ends: 1658 [2022-03-03 18:37:46,538 INFO L226 Difference]: Without dead ends: 1573 [2022-03-03 18:37:46,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:46,538 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 [2022-03-03 18:37:46,538 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] [2022-03-03 18:37:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-03 18:37:46,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1444. [2022-03-03 18:37:46,552 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) [2022-03-03 18:37:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 4397 transitions. [2022-03-03 18:37:46,554 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 4397 transitions. Word has length 26 [2022-03-03 18:37:46,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:46,554 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 4397 transitions. [2022-03-03 18:37:46,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:46,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 4397 transitions. [2022-03-03 18:37:46,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:46,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:46,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:46,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 18:37:46,556 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:46,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1264889257, now seen corresponding path program 84 times [2022-03-03 18:37:46,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:46,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231483373] [2022-03-03 18:37:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:46,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:46,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231483373] [2022-03-03 18:37:46,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231483373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:46,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:46,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:46,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399571348] [2022-03-03 18:37:46,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:46,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:46,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:46,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:46,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:46,657 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) [2022-03-03 18:37:46,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:46,907 INFO L93 Difference]: Finished difference Result 1729 states and 5190 transitions. [2022-03-03 18:37:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:46,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:46,922 INFO L225 Difference]: With dead ends: 1729 [2022-03-03 18:37:46,922 INFO L226 Difference]: Without dead ends: 1634 [2022-03-03 18:37:46,923 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 [2022-03-03 18:37:46,923 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 56 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:46,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 263 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:46,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-03-03 18:37:46,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1464. [2022-03-03 18:37:46,940 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) [2022-03-03 18:37:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4456 transitions. [2022-03-03 18:37:46,942 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4456 transitions. Word has length 26 [2022-03-03 18:37:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:46,942 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4456 transitions. [2022-03-03 18:37:46,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4456 transitions. [2022-03-03 18:37:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:46,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:46,945 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] [2022-03-03 18:37:46,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 18:37:46,945 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:46,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:46,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2110896917, now seen corresponding path program 85 times [2022-03-03 18:37:46,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:46,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877014901] [2022-03-03 18:37:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:46,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:47,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:47,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877014901] [2022-03-03 18:37:47,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877014901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:47,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:47,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:47,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752821993] [2022-03-03 18:37:47,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:47,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:47,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:47,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:47,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:47,016 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) [2022-03-03 18:37:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:47,259 INFO L93 Difference]: Finished difference Result 1739 states and 5230 transitions. [2022-03-03 18:37:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:47,260 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 [2022-03-03 18:37:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:47,263 INFO L225 Difference]: With dead ends: 1739 [2022-03-03 18:37:47,263 INFO L226 Difference]: Without dead ends: 1609 [2022-03-03 18:37:47,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:47,263 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 58 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:47,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 266 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:47,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2022-03-03 18:37:47,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1469. [2022-03-03 18:37:47,278 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) [2022-03-03 18:37:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4454 transitions. [2022-03-03 18:37:47,281 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4454 transitions. Word has length 26 [2022-03-03 18:37:47,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:47,281 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4454 transitions. [2022-03-03 18:37:47,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:47,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4454 transitions. [2022-03-03 18:37:47,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:47,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:47,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:47,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-03 18:37:47,283 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:47,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash 463329651, now seen corresponding path program 86 times [2022-03-03 18:37:47,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:47,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925734010] [2022-03-03 18:37:47,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:47,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:47,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:47,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925734010] [2022-03-03 18:37:47,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925734010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:47,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:47,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:47,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018977824] [2022-03-03 18:37:47,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:47,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:47,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:47,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:47,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:47,379 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) [2022-03-03 18:37:47,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:47,633 INFO L93 Difference]: Finished difference Result 1598 states and 4788 transitions. [2022-03-03 18:37:47,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:47,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:47,637 INFO L225 Difference]: With dead ends: 1598 [2022-03-03 18:37:47,637 INFO L226 Difference]: Without dead ends: 1519 [2022-03-03 18:37:47,637 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 [2022-03-03 18:37:47,637 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:47,637 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] [2022-03-03 18:37:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-03-03 18:37:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1469. [2022-03-03 18:37:47,653 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) [2022-03-03 18:37:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4454 transitions. [2022-03-03 18:37:47,655 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4454 transitions. Word has length 26 [2022-03-03 18:37:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:47,655 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4454 transitions. [2022-03-03 18:37:47,655 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) [2022-03-03 18:37:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4454 transitions. [2022-03-03 18:37:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:47,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:47,657 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] [2022-03-03 18:37:47,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-03 18:37:47,658 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:47,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:47,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1472971275, now seen corresponding path program 87 times [2022-03-03 18:37:47,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:47,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368888956] [2022-03-03 18:37:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:47,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:47,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:47,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368888956] [2022-03-03 18:37:47,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368888956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:47,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:47,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:47,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445716012] [2022-03-03 18:37:47,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:47,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:47,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:47,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:47,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:47,755 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) [2022-03-03 18:37:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:48,022 INFO L93 Difference]: Finished difference Result 1617 states and 4837 transitions. [2022-03-03 18:37:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:48,022 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:48,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:48,025 INFO L225 Difference]: With dead ends: 1617 [2022-03-03 18:37:48,025 INFO L226 Difference]: Without dead ends: 1522 [2022-03-03 18:37:48,025 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 [2022-03-03 18:37:48,025 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:48,026 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] [2022-03-03 18:37:48,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-03-03 18:37:48,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1471. [2022-03-03 18:37:48,041 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) [2022-03-03 18:37:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 4459 transitions. [2022-03-03 18:37:48,043 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 4459 transitions. Word has length 26 [2022-03-03 18:37:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:48,043 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 4459 transitions. [2022-03-03 18:37:48,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:48,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 4459 transitions. [2022-03-03 18:37:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:48,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:48,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:48,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-03 18:37:48,046 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:48,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:48,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1105598891, now seen corresponding path program 88 times [2022-03-03 18:37:48,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:48,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891759127] [2022-03-03 18:37:48,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:48,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:48,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:48,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891759127] [2022-03-03 18:37:48,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891759127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:48,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:48,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:48,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443594998] [2022-03-03 18:37:48,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:48,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:48,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:48,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:48,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:48,119 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) [2022-03-03 18:37:48,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:48,352 INFO L93 Difference]: Finished difference Result 1682 states and 5045 transitions. [2022-03-03 18:37:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:48,352 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:48,355 INFO L225 Difference]: With dead ends: 1682 [2022-03-03 18:37:48,355 INFO L226 Difference]: Without dead ends: 1603 [2022-03-03 18:37:48,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:48,356 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 [2022-03-03 18:37:48,356 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] [2022-03-03 18:37:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-03-03 18:37:48,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1470. [2022-03-03 18:37:48,371 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) [2022-03-03 18:37:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4455 transitions. [2022-03-03 18:37:48,373 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4455 transitions. Word has length 26 [2022-03-03 18:37:48,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:48,374 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4455 transitions. [2022-03-03 18:37:48,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:48,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4455 transitions. [2022-03-03 18:37:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:48,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:48,375 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] [2022-03-03 18:37:48,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-03 18:37:48,376 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:48,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:48,376 INFO L85 PathProgramCache]: Analyzing trace with hash 874084315, now seen corresponding path program 89 times [2022-03-03 18:37:48,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:48,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435404753] [2022-03-03 18:37:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:48,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:48,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:48,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435404753] [2022-03-03 18:37:48,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435404753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:48,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:48,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:48,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491181503] [2022-03-03 18:37:48,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:48,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:48,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:48,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:48,451 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) [2022-03-03 18:37:48,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:48,679 INFO L93 Difference]: Finished difference Result 1669 states and 5007 transitions. [2022-03-03 18:37:48,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:48,683 INFO L225 Difference]: With dead ends: 1669 [2022-03-03 18:37:48,683 INFO L226 Difference]: Without dead ends: 1580 [2022-03-03 18:37:48,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:48,683 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:48,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 232 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-03-03 18:37:48,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1469. [2022-03-03 18:37:48,701 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) [2022-03-03 18:37:48,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4449 transitions. [2022-03-03 18:37:48,703 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4449 transitions. Word has length 26 [2022-03-03 18:37:48,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:48,703 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4449 transitions. [2022-03-03 18:37:48,703 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) [2022-03-03 18:37:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4449 transitions. [2022-03-03 18:37:48,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:48,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:48,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:48,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-03 18:37:48,705 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:48,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1519505117, now seen corresponding path program 90 times [2022-03-03 18:37:48,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:48,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866898531] [2022-03-03 18:37:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:48,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:48,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:48,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866898531] [2022-03-03 18:37:48,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866898531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:48,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:48,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:48,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915349807] [2022-03-03 18:37:48,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:48,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:48,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:48,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:48,789 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) [2022-03-03 18:37:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:49,039 INFO L93 Difference]: Finished difference Result 1654 states and 4951 transitions. [2022-03-03 18:37:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:49,042 INFO L225 Difference]: With dead ends: 1654 [2022-03-03 18:37:49,043 INFO L226 Difference]: Without dead ends: 1566 [2022-03-03 18:37:49,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:49,043 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:49,043 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] [2022-03-03 18:37:49,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-03-03 18:37:49,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1470. [2022-03-03 18:37:49,067 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) [2022-03-03 18:37:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4453 transitions. [2022-03-03 18:37:49,070 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4453 transitions. Word has length 26 [2022-03-03 18:37:49,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:49,070 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4453 transitions. [2022-03-03 18:37:49,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4453 transitions. [2022-03-03 18:37:49,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:49,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:49,072 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] [2022-03-03 18:37:49,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-03 18:37:49,073 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:49,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:49,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1607441851, now seen corresponding path program 91 times [2022-03-03 18:37:49,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:49,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201602015] [2022-03-03 18:37:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:49,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:49,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:49,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201602015] [2022-03-03 18:37:49,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201602015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:49,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:49,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:49,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611654420] [2022-03-03 18:37:49,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:49,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:49,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:49,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:49,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:49,149 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) [2022-03-03 18:37:49,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:49,383 INFO L93 Difference]: Finished difference Result 1673 states and 4993 transitions. [2022-03-03 18:37:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:49,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:49,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:49,387 INFO L225 Difference]: With dead ends: 1673 [2022-03-03 18:37:49,387 INFO L226 Difference]: Without dead ends: 1579 [2022-03-03 18:37:49,387 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 [2022-03-03 18:37:49,387 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:49,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 230 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:49,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-03-03 18:37:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1475. [2022-03-03 18:37:49,405 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) [2022-03-03 18:37:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4474 transitions. [2022-03-03 18:37:49,408 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4474 transitions. Word has length 26 [2022-03-03 18:37:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:49,408 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4474 transitions. [2022-03-03 18:37:49,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4474 transitions. [2022-03-03 18:37:49,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:49,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:49,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:49,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-03 18:37:49,410 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:49,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:49,410 INFO L85 PathProgramCache]: Analyzing trace with hash 256521685, now seen corresponding path program 92 times [2022-03-03 18:37:49,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:49,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535263595] [2022-03-03 18:37:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:49,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:49,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:49,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535263595] [2022-03-03 18:37:49,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535263595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:49,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:49,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:49,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105471949] [2022-03-03 18:37:49,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:49,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:49,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:49,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:49,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:49,481 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) [2022-03-03 18:37:49,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:49,703 INFO L93 Difference]: Finished difference Result 1627 states and 4876 transitions. [2022-03-03 18:37:49,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:49,703 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 [2022-03-03 18:37:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:49,706 INFO L225 Difference]: With dead ends: 1627 [2022-03-03 18:37:49,706 INFO L226 Difference]: Without dead ends: 1548 [2022-03-03 18:37:49,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:49,707 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 [2022-03-03 18:37:49,707 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] [2022-03-03 18:37:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2022-03-03 18:37:49,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1475. [2022-03-03 18:37:49,722 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) [2022-03-03 18:37:49,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4474 transitions. [2022-03-03 18:37:49,725 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4474 transitions. Word has length 26 [2022-03-03 18:37:49,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:49,725 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4474 transitions. [2022-03-03 18:37:49,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:49,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4474 transitions. [2022-03-03 18:37:49,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:49,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:49,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:49,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-03 18:37:49,727 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:49,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1679779241, now seen corresponding path program 93 times [2022-03-03 18:37:49,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:49,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506327224] [2022-03-03 18:37:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:49,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:49,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:49,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:49,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506327224] [2022-03-03 18:37:49,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506327224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:49,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:49,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:49,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348473347] [2022-03-03 18:37:49,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:49,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:49,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:49,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:49,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:49,810 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) [2022-03-03 18:37:50,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:50,049 INFO L93 Difference]: Finished difference Result 1646 states and 4929 transitions. [2022-03-03 18:37:50,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:50,050 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 [2022-03-03 18:37:50,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:50,052 INFO L225 Difference]: With dead ends: 1646 [2022-03-03 18:37:50,052 INFO L226 Difference]: Without dead ends: 1551 [2022-03-03 18:37:50,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:50,053 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 [2022-03-03 18:37:50,053 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] [2022-03-03 18:37:50,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-03-03 18:37:50,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1478. [2022-03-03 18:37:50,069 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) [2022-03-03 18:37:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 4482 transitions. [2022-03-03 18:37:50,071 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 4482 transitions. Word has length 26 [2022-03-03 18:37:50,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:50,071 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 4482 transitions. [2022-03-03 18:37:50,071 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) [2022-03-03 18:37:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 4482 transitions. [2022-03-03 18:37:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:50,073 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:50,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:50,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-03 18:37:50,073 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:50,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1958024533, now seen corresponding path program 94 times [2022-03-03 18:37:50,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:50,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144404591] [2022-03-03 18:37:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:50,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:50,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:50,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144404591] [2022-03-03 18:37:50,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144404591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:50,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:50,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:50,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286375864] [2022-03-03 18:37:50,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:50,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:50,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:50,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:50,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:50,156 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) [2022-03-03 18:37:50,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:50,381 INFO L93 Difference]: Finished difference Result 1664 states and 4981 transitions. [2022-03-03 18:37:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:50,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:50,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:50,384 INFO L225 Difference]: With dead ends: 1664 [2022-03-03 18:37:50,385 INFO L226 Difference]: Without dead ends: 1579 [2022-03-03 18:37:50,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:50,385 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 [2022-03-03 18:37:50,385 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] [2022-03-03 18:37:50,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-03-03 18:37:50,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1477. [2022-03-03 18:37:50,401 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) [2022-03-03 18:37:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 4475 transitions. [2022-03-03 18:37:50,405 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 4475 transitions. Word has length 26 [2022-03-03 18:37:50,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:50,405 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 4475 transitions. [2022-03-03 18:37:50,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 4475 transitions. [2022-03-03 18:37:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:50,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:50,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:50,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-03 18:37:50,407 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:50,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash 629458611, now seen corresponding path program 95 times [2022-03-03 18:37:50,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:50,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247615998] [2022-03-03 18:37:50,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:50,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:50,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:50,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:50,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247615998] [2022-03-03 18:37:50,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247615998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:50,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:50,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:50,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651627906] [2022-03-03 18:37:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:50,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:50,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:50,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:50,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:50,484 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) [2022-03-03 18:37:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:50,732 INFO L93 Difference]: Finished difference Result 1654 states and 4965 transitions. [2022-03-03 18:37:50,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:50,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:50,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:50,735 INFO L225 Difference]: With dead ends: 1654 [2022-03-03 18:37:50,735 INFO L226 Difference]: Without dead ends: 1554 [2022-03-03 18:37:50,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:50,735 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:50,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 231 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-03-03 18:37:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1475. [2022-03-03 18:37:50,751 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) [2022-03-03 18:37:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4473 transitions. [2022-03-03 18:37:50,754 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4473 transitions. Word has length 26 [2022-03-03 18:37:50,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:50,754 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4473 transitions. [2022-03-03 18:37:50,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:50,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4473 transitions. [2022-03-03 18:37:50,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:50,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:50,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:50,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-03 18:37:50,756 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:50,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:50,756 INFO L85 PathProgramCache]: Analyzing trace with hash 456182079, now seen corresponding path program 96 times [2022-03-03 18:37:50,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:50,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388342492] [2022-03-03 18:37:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:50,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:50,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:50,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388342492] [2022-03-03 18:37:50,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388342492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:50,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:50,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:50,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396401925] [2022-03-03 18:37:50,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:50,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:50,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:50,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:50,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:50,845 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) [2022-03-03 18:37:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:51,085 INFO L93 Difference]: Finished difference Result 1649 states and 4952 transitions. [2022-03-03 18:37:51,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:51,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:51,089 INFO L225 Difference]: With dead ends: 1649 [2022-03-03 18:37:51,089 INFO L226 Difference]: Without dead ends: 1561 [2022-03-03 18:37:51,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:51,089 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 [2022-03-03 18:37:51,089 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] [2022-03-03 18:37:51,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-03-03 18:37:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1481. [2022-03-03 18:37:51,105 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) [2022-03-03 18:37:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4491 transitions. [2022-03-03 18:37:51,108 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4491 transitions. Word has length 26 [2022-03-03 18:37:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:51,108 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4491 transitions. [2022-03-03 18:37:51,108 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) [2022-03-03 18:37:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4491 transitions. [2022-03-03 18:37:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:51,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:51,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:51,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-03 18:37:51,110 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:51,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash 544118813, now seen corresponding path program 97 times [2022-03-03 18:37:51,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:51,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008582141] [2022-03-03 18:37:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:51,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:51,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:51,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008582141] [2022-03-03 18:37:51,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008582141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:51,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:51,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:51,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302515796] [2022-03-03 18:37:51,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:51,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:51,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:51,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:51,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:51,189 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) [2022-03-03 18:37:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:51,415 INFO L93 Difference]: Finished difference Result 1675 states and 4997 transitions. [2022-03-03 18:37:51,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:51,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:51,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:51,419 INFO L225 Difference]: With dead ends: 1675 [2022-03-03 18:37:51,419 INFO L226 Difference]: Without dead ends: 1583 [2022-03-03 18:37:51,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:51,419 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 47 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:51,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 234 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-03-03 18:37:51,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1479. [2022-03-03 18:37:51,434 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) [2022-03-03 18:37:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 4480 transitions. [2022-03-03 18:37:51,436 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 4480 transitions. Word has length 26 [2022-03-03 18:37:51,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:51,436 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 4480 transitions. [2022-03-03 18:37:51,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 4480 transitions. [2022-03-03 18:37:51,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:51,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:51,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:51,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-03 18:37:51,438 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:51,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:51,439 INFO L85 PathProgramCache]: Analyzing trace with hash -935962467, now seen corresponding path program 98 times [2022-03-03 18:37:51,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:51,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220666213] [2022-03-03 18:37:51,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:51,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:51,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:51,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:51,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220666213] [2022-03-03 18:37:51,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220666213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:51,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:51,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:51,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745402895] [2022-03-03 18:37:51,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:51,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:51,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:51,520 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) [2022-03-03 18:37:51,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:51,773 INFO L93 Difference]: Finished difference Result 1599 states and 4788 transitions. [2022-03-03 18:37:51,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:51,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:51,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:51,776 INFO L225 Difference]: With dead ends: 1599 [2022-03-03 18:37:51,776 INFO L226 Difference]: Without dead ends: 1480 [2022-03-03 18:37:51,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:51,776 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:51,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 233 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-03-03 18:37:51,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1444. [2022-03-03 18:37:51,792 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) [2022-03-03 18:37:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 4393 transitions. [2022-03-03 18:37:51,795 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 4393 transitions. Word has length 26 [2022-03-03 18:37:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:51,795 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 4393 transitions. [2022-03-03 18:37:51,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 4393 transitions. [2022-03-03 18:37:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:51,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:51,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:51,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-03 18:37:51,798 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:51,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1375996709, now seen corresponding path program 99 times [2022-03-03 18:37:51,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:51,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164051489] [2022-03-03 18:37:51,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:51,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:51,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:51,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164051489] [2022-03-03 18:37:51,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164051489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:51,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:51,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:37:51,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917601727] [2022-03-03 18:37:51,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:51,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:37:51,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:37:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:37:51,863 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) [2022-03-03 18:37:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:52,062 INFO L93 Difference]: Finished difference Result 1798 states and 5382 transitions. [2022-03-03 18:37:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:37:52,063 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 [2022-03-03 18:37:52,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:52,065 INFO L225 Difference]: With dead ends: 1798 [2022-03-03 18:37:52,066 INFO L226 Difference]: Without dead ends: 1641 [2022-03-03 18:37:52,066 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 [2022-03-03 18:37:52,066 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 [2022-03-03 18:37:52,066 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] [2022-03-03 18:37:52,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-03-03 18:37:52,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1518. [2022-03-03 18:37:52,082 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) [2022-03-03 18:37:52,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 4611 transitions. [2022-03-03 18:37:52,085 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 4611 transitions. Word has length 26 [2022-03-03 18:37:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:52,085 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 4611 transitions. [2022-03-03 18:37:52,085 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) [2022-03-03 18:37:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 4611 transitions. [2022-03-03 18:37:52,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:52,087 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:52,087 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] [2022-03-03 18:37:52,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-03 18:37:52,087 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:52,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:52,088 INFO L85 PathProgramCache]: Analyzing trace with hash 802701469, now seen corresponding path program 100 times [2022-03-03 18:37:52,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:52,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527607802] [2022-03-03 18:37:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:52,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:52,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:52,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527607802] [2022-03-03 18:37:52,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527607802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:52,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:52,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:52,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254101692] [2022-03-03 18:37:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:52,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:52,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:52,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:52,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:52,146 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) [2022-03-03 18:37:52,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:52,347 INFO L93 Difference]: Finished difference Result 1800 states and 5385 transitions. [2022-03-03 18:37:52,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:52,347 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 [2022-03-03 18:37:52,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:52,350 INFO L225 Difference]: With dead ends: 1800 [2022-03-03 18:37:52,350 INFO L226 Difference]: Without dead ends: 1650 [2022-03-03 18:37:52,350 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 [2022-03-03 18:37:52,350 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 [2022-03-03 18:37:52,351 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] [2022-03-03 18:37:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-03-03 18:37:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1502. [2022-03-03 18:37:52,366 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) [2022-03-03 18:37:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 4569 transitions. [2022-03-03 18:37:52,368 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 4569 transitions. Word has length 26 [2022-03-03 18:37:52,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:52,368 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 4569 transitions. [2022-03-03 18:37:52,368 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) [2022-03-03 18:37:52,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 4569 transitions. [2022-03-03 18:37:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:52,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:52,370 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] [2022-03-03 18:37:52,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-03 18:37:52,370 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:52,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:52,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1582804675, now seen corresponding path program 101 times [2022-03-03 18:37:52,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:52,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538788156] [2022-03-03 18:37:52,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:52,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:52,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:52,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538788156] [2022-03-03 18:37:52,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538788156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:52,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:52,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:52,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726575794] [2022-03-03 18:37:52,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:52,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:52,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:52,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:52,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:52,431 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) [2022-03-03 18:37:52,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:52,643 INFO L93 Difference]: Finished difference Result 1960 states and 5843 transitions. [2022-03-03 18:37:52,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:52,644 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:52,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:52,647 INFO L225 Difference]: With dead ends: 1960 [2022-03-03 18:37:52,647 INFO L226 Difference]: Without dead ends: 1674 [2022-03-03 18:37:52,647 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 [2022-03-03 18:37:52,647 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 [2022-03-03 18:37:52,647 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] [2022-03-03 18:37:52,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-03-03 18:37:52,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1624. [2022-03-03 18:37:52,664 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) [2022-03-03 18:37:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 4866 transitions. [2022-03-03 18:37:52,666 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 4866 transitions. Word has length 26 [2022-03-03 18:37:52,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:52,666 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 4866 transitions. [2022-03-03 18:37:52,666 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) [2022-03-03 18:37:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 4866 transitions. [2022-03-03 18:37:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:52,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:52,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:52,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-03 18:37:52,669 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:52,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:52,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1282346073, now seen corresponding path program 102 times [2022-03-03 18:37:52,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:52,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133037539] [2022-03-03 18:37:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:52,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:52,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:52,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:52,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133037539] [2022-03-03 18:37:52,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133037539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:52,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:52,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:52,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686940575] [2022-03-03 18:37:52,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:52,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:52,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:52,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:52,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:52,743 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) [2022-03-03 18:37:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:52,979 INFO L93 Difference]: Finished difference Result 1845 states and 5416 transitions. [2022-03-03 18:37:52,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:52,979 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 [2022-03-03 18:37:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:52,982 INFO L225 Difference]: With dead ends: 1845 [2022-03-03 18:37:52,982 INFO L226 Difference]: Without dead ends: 1600 [2022-03-03 18:37:52,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:52,982 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 [2022-03-03 18:37:52,983 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] [2022-03-03 18:37:52,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-03-03 18:37:52,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1516. [2022-03-03 18:37:52,999 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) [2022-03-03 18:37:53,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 4482 transitions. [2022-03-03 18:37:53,002 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 4482 transitions. Word has length 26 [2022-03-03 18:37:53,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:53,002 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 4482 transitions. [2022-03-03 18:37:53,002 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) [2022-03-03 18:37:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 4482 transitions. [2022-03-03 18:37:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:53,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:53,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:53,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-03 18:37:53,004 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:53,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:53,004 INFO L85 PathProgramCache]: Analyzing trace with hash 571020857, now seen corresponding path program 103 times [2022-03-03 18:37:53,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:53,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679358977] [2022-03-03 18:37:53,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:53,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:53,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:53,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679358977] [2022-03-03 18:37:53,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679358977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:53,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:53,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:53,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605689244] [2022-03-03 18:37:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:53,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:53,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:53,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:53,077 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) [2022-03-03 18:37:53,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:53,319 INFO L93 Difference]: Finished difference Result 1776 states and 5183 transitions. [2022-03-03 18:37:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:53,322 INFO L225 Difference]: With dead ends: 1776 [2022-03-03 18:37:53,322 INFO L226 Difference]: Without dead ends: 1640 [2022-03-03 18:37:53,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:53,323 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 62 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:53,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 290 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-03-03 18:37:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1518. [2022-03-03 18:37:53,338 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) [2022-03-03 18:37:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 4481 transitions. [2022-03-03 18:37:53,341 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 4481 transitions. Word has length 26 [2022-03-03 18:37:53,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:53,341 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 4481 transitions. [2022-03-03 18:37:53,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:53,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 4481 transitions. [2022-03-03 18:37:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:53,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:53,343 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] [2022-03-03 18:37:53,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-03 18:37:53,343 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:53,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:53,348 INFO L85 PathProgramCache]: Analyzing trace with hash -997907685, now seen corresponding path program 104 times [2022-03-03 18:37:53,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:53,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162585277] [2022-03-03 18:37:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:53,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:53,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:53,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162585277] [2022-03-03 18:37:53,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162585277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:53,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:53,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:53,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971929280] [2022-03-03 18:37:53,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:53,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:53,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:53,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:53,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:53,413 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) [2022-03-03 18:37:53,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:53,651 INFO L93 Difference]: Finished difference Result 1746 states and 5066 transitions. [2022-03-03 18:37:53,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:53,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:53,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:53,654 INFO L225 Difference]: With dead ends: 1746 [2022-03-03 18:37:53,654 INFO L226 Difference]: Without dead ends: 1617 [2022-03-03 18:37:53,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:53,655 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:53,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 286 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:53,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-03-03 18:37:53,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1514. [2022-03-03 18:37:53,669 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) [2022-03-03 18:37:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 4470 transitions. [2022-03-03 18:37:53,672 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 4470 transitions. Word has length 26 [2022-03-03 18:37:53,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:53,672 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 4470 transitions. [2022-03-03 18:37:53,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 4470 transitions. [2022-03-03 18:37:53,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:53,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:53,674 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] [2022-03-03 18:37:53,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-03 18:37:53,674 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:53,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:53,674 INFO L85 PathProgramCache]: Analyzing trace with hash 981775521, now seen corresponding path program 105 times [2022-03-03 18:37:53,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:53,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244796301] [2022-03-03 18:37:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:53,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:53,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244796301] [2022-03-03 18:37:53,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244796301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:53,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:53,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:53,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944716532] [2022-03-03 18:37:53,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:53,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:53,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:53,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:53,740 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) [2022-03-03 18:37:53,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:53,984 INFO L93 Difference]: Finished difference Result 1698 states and 4924 transitions. [2022-03-03 18:37:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:53,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:53,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:53,987 INFO L225 Difference]: With dead ends: 1698 [2022-03-03 18:37:53,987 INFO L226 Difference]: Without dead ends: 1552 [2022-03-03 18:37:53,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:53,988 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:53,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 287 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:53,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2022-03-03 18:37:54,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1502. [2022-03-03 18:37:54,005 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) [2022-03-03 18:37:54,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 4439 transitions. [2022-03-03 18:37:54,008 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 4439 transitions. Word has length 26 [2022-03-03 18:37:54,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:54,008 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 4439 transitions. [2022-03-03 18:37:54,008 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) [2022-03-03 18:37:54,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 4439 transitions. [2022-03-03 18:37:54,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:54,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:54,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:54,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-03 18:37:54,010 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:54,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1567915523, now seen corresponding path program 106 times [2022-03-03 18:37:54,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:54,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42096779] [2022-03-03 18:37:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:54,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:54,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:54,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42096779] [2022-03-03 18:37:54,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42096779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:54,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:54,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:54,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153708941] [2022-03-03 18:37:54,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:54,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:54,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:54,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:54,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:54,076 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) [2022-03-03 18:37:54,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:54,315 INFO L93 Difference]: Finished difference Result 1727 states and 5036 transitions. [2022-03-03 18:37:54,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:54,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:54,318 INFO L225 Difference]: With dead ends: 1727 [2022-03-03 18:37:54,318 INFO L226 Difference]: Without dead ends: 1598 [2022-03-03 18:37:54,319 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 [2022-03-03 18:37:54,319 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 [2022-03-03 18:37:54,319 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] [2022-03-03 18:37:54,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-03-03 18:37:54,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1526. [2022-03-03 18:37:54,334 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) [2022-03-03 18:37:54,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 4505 transitions. [2022-03-03 18:37:54,336 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 4505 transitions. Word has length 26 [2022-03-03 18:37:54,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:54,336 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 4505 transitions. [2022-03-03 18:37:54,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 4505 transitions. [2022-03-03 18:37:54,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:54,338 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:54,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:54,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-03 18:37:54,338 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:54,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash 411767683, now seen corresponding path program 107 times [2022-03-03 18:37:54,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:54,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080462423] [2022-03-03 18:37:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:54,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:54,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:54,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080462423] [2022-03-03 18:37:54,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080462423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:54,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:54,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:54,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479467578] [2022-03-03 18:37:54,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:54,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:54,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:54,409 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) [2022-03-03 18:37:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:54,671 INFO L93 Difference]: Finished difference Result 1850 states and 5404 transitions. [2022-03-03 18:37:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:54,671 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:54,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:54,674 INFO L225 Difference]: With dead ends: 1850 [2022-03-03 18:37:54,674 INFO L226 Difference]: Without dead ends: 1689 [2022-03-03 18:37:54,674 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 [2022-03-03 18:37:54,674 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:54,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-03-03 18:37:54,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1590. [2022-03-03 18:37:54,691 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) [2022-03-03 18:37:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 4683 transitions. [2022-03-03 18:37:54,693 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 4683 transitions. Word has length 26 [2022-03-03 18:37:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:54,693 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 4683 transitions. [2022-03-03 18:37:54,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 4683 transitions. [2022-03-03 18:37:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:54,695 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:54,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:54,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-03 18:37:54,696 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:54,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1145125219, now seen corresponding path program 108 times [2022-03-03 18:37:54,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:54,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706912516] [2022-03-03 18:37:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:54,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:54,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:54,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706912516] [2022-03-03 18:37:54,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706912516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:54,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:54,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:54,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143586895] [2022-03-03 18:37:54,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:54,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:54,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:54,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:54,770 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) [2022-03-03 18:37:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:55,028 INFO L93 Difference]: Finished difference Result 1788 states and 5178 transitions. [2022-03-03 18:37:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:55,029 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 [2022-03-03 18:37:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:55,032 INFO L225 Difference]: With dead ends: 1788 [2022-03-03 18:37:55,032 INFO L226 Difference]: Without dead ends: 1636 [2022-03-03 18:37:55,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:55,032 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:55,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 289 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:55,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-03-03 18:37:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1524. [2022-03-03 18:37:55,049 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) [2022-03-03 18:37:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 4494 transitions. [2022-03-03 18:37:55,052 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 4494 transitions. Word has length 26 [2022-03-03 18:37:55,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:55,052 INFO L470 AbstractCegarLoop]: Abstraction has 1524 states and 4494 transitions. [2022-03-03 18:37:55,052 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) [2022-03-03 18:37:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 4494 transitions. [2022-03-03 18:37:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:55,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:55,054 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] [2022-03-03 18:37:55,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-03 18:37:55,055 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1452003481, now seen corresponding path program 109 times [2022-03-03 18:37:55,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:55,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544656367] [2022-03-03 18:37:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:55,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:55,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:55,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544656367] [2022-03-03 18:37:55,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544656367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:55,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:55,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:55,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040983951] [2022-03-03 18:37:55,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:55,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:55,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:55,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:55,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:55,126 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) [2022-03-03 18:37:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:55,373 INFO L93 Difference]: Finished difference Result 1802 states and 5245 transitions. [2022-03-03 18:37:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:55,373 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:55,376 INFO L225 Difference]: With dead ends: 1802 [2022-03-03 18:37:55,376 INFO L226 Difference]: Without dead ends: 1586 [2022-03-03 18:37:55,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:55,377 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 70 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:55,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 312 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-03-03 18:37:55,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1464. [2022-03-03 18:37:55,393 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) [2022-03-03 18:37:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4318 transitions. [2022-03-03 18:37:55,395 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4318 transitions. Word has length 26 [2022-03-03 18:37:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:55,396 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4318 transitions. [2022-03-03 18:37:55,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4318 transitions. [2022-03-03 18:37:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:55,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:55,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:55,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-03 18:37:55,398 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:55,398 INFO L85 PathProgramCache]: Analyzing trace with hash 890933497, now seen corresponding path program 110 times [2022-03-03 18:37:55,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:55,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146142280] [2022-03-03 18:37:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:55,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:55,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:55,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146142280] [2022-03-03 18:37:55,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146142280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:55,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:55,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:55,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103676951] [2022-03-03 18:37:55,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:55,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:55,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:55,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:55,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:55,461 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) [2022-03-03 18:37:55,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:55,663 INFO L93 Difference]: Finished difference Result 1765 states and 5135 transitions. [2022-03-03 18:37:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:55,664 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 [2022-03-03 18:37:55,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:55,666 INFO L225 Difference]: With dead ends: 1765 [2022-03-03 18:37:55,667 INFO L226 Difference]: Without dead ends: 1626 [2022-03-03 18:37:55,667 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 [2022-03-03 18:37:55,667 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 [2022-03-03 18:37:55,667 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] [2022-03-03 18:37:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-03-03 18:37:55,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1511. [2022-03-03 18:37:55,683 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) [2022-03-03 18:37:55,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 4436 transitions. [2022-03-03 18:37:55,686 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 4436 transitions. Word has length 26 [2022-03-03 18:37:55,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:55,686 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 4436 transitions. [2022-03-03 18:37:55,686 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) [2022-03-03 18:37:55,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 4436 transitions. [2022-03-03 18:37:55,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:55,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:55,688 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] [2022-03-03 18:37:55,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-03 18:37:55,688 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:55,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:55,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1225335621, now seen corresponding path program 111 times [2022-03-03 18:37:55,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:55,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599390346] [2022-03-03 18:37:55,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:55,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:55,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:55,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599390346] [2022-03-03 18:37:55,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599390346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:55,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:55,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:55,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030860204] [2022-03-03 18:37:55,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:55,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:55,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:55,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:55,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:55,756 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) [2022-03-03 18:37:56,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:56,001 INFO L93 Difference]: Finished difference Result 1727 states and 5019 transitions. [2022-03-03 18:37:56,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:56,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:56,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:56,004 INFO L225 Difference]: With dead ends: 1727 [2022-03-03 18:37:56,004 INFO L226 Difference]: Without dead ends: 1595 [2022-03-03 18:37:56,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:56,005 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:56,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 290 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:56,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2022-03-03 18:37:56,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1473. [2022-03-03 18:37:56,019 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) [2022-03-03 18:37:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 4332 transitions. [2022-03-03 18:37:56,022 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 4332 transitions. Word has length 26 [2022-03-03 18:37:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:56,022 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 4332 transitions. [2022-03-03 18:37:56,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 4332 transitions. [2022-03-03 18:37:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:56,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:56,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:56,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-03 18:37:56,024 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:56,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash 684125531, now seen corresponding path program 112 times [2022-03-03 18:37:56,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:56,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693319814] [2022-03-03 18:37:56,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:56,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:56,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:56,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693319814] [2022-03-03 18:37:56,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693319814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:56,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:56,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:56,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300976261] [2022-03-03 18:37:56,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:56,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:56,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:56,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:56,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:56,081 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) [2022-03-03 18:37:56,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:56,277 INFO L93 Difference]: Finished difference Result 1775 states and 5127 transitions. [2022-03-03 18:37:56,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:56,278 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 [2022-03-03 18:37:56,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:56,280 INFO L225 Difference]: With dead ends: 1775 [2022-03-03 18:37:56,280 INFO L226 Difference]: Without dead ends: 1647 [2022-03-03 18:37:56,281 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 [2022-03-03 18:37:56,281 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 [2022-03-03 18:37:56,281 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] [2022-03-03 18:37:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-03-03 18:37:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1525. [2022-03-03 18:37:56,304 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) [2022-03-03 18:37:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4461 transitions. [2022-03-03 18:37:56,307 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4461 transitions. Word has length 26 [2022-03-03 18:37:56,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:56,307 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 4461 transitions. [2022-03-03 18:37:56,307 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) [2022-03-03 18:37:56,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4461 transitions. [2022-03-03 18:37:56,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:56,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:56,309 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] [2022-03-03 18:37:56,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-03 18:37:56,309 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:56,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash -745691017, now seen corresponding path program 113 times [2022-03-03 18:37:56,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:56,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961708237] [2022-03-03 18:37:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:56,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:56,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:56,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961708237] [2022-03-03 18:37:56,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961708237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:56,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:56,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:56,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756568119] [2022-03-03 18:37:56,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:56,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:56,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:56,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:56,383 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) [2022-03-03 18:37:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:56,616 INFO L93 Difference]: Finished difference Result 1738 states and 5008 transitions. [2022-03-03 18:37:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:56,616 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:56,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:56,619 INFO L225 Difference]: With dead ends: 1738 [2022-03-03 18:37:56,619 INFO L226 Difference]: Without dead ends: 1633 [2022-03-03 18:37:56,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:56,620 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 [2022-03-03 18:37:56,620 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] [2022-03-03 18:37:56,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2022-03-03 18:37:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1501. [2022-03-03 18:37:56,635 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) [2022-03-03 18:37:56,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 4399 transitions. [2022-03-03 18:37:56,638 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 4399 transitions. Word has length 26 [2022-03-03 18:37:56,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:56,638 INFO L470 AbstractCegarLoop]: Abstraction has 1501 states and 4399 transitions. [2022-03-03 18:37:56,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:56,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 4399 transitions. [2022-03-03 18:37:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:56,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:56,640 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] [2022-03-03 18:37:56,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-03 18:37:56,640 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:56,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:56,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1457016233, now seen corresponding path program 114 times [2022-03-03 18:37:56,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:56,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084911468] [2022-03-03 18:37:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:56,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:56,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084911468] [2022-03-03 18:37:56,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084911468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:56,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:56,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:56,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081544972] [2022-03-03 18:37:56,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:56,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:56,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:56,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:56,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:56,715 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) [2022-03-03 18:37:56,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:56,965 INFO L93 Difference]: Finished difference Result 1652 states and 4785 transitions. [2022-03-03 18:37:56,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:56,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:56,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:56,968 INFO L225 Difference]: With dead ends: 1652 [2022-03-03 18:37:56,968 INFO L226 Difference]: Without dead ends: 1573 [2022-03-03 18:37:56,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:56,968 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 [2022-03-03 18:37:56,969 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] [2022-03-03 18:37:56,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-03 18:37:56,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1507. [2022-03-03 18:37:56,982 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) [2022-03-03 18:37:56,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4409 transitions. [2022-03-03 18:37:56,984 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4409 transitions. Word has length 26 [2022-03-03 18:37:56,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:56,984 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 4409 transitions. [2022-03-03 18:37:56,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:56,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4409 transitions. [2022-03-03 18:37:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:56,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:56,986 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] [2022-03-03 18:37:56,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-03 18:37:56,986 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:56,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash 901650137, now seen corresponding path program 115 times [2022-03-03 18:37:56,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:56,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521243070] [2022-03-03 18:37:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:56,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:57,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:57,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521243070] [2022-03-03 18:37:57,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521243070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:57,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:57,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:57,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394730925] [2022-03-03 18:37:57,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:57,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:57,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:57,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:57,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:57,050 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) [2022-03-03 18:37:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:57,291 INFO L93 Difference]: Finished difference Result 1745 states and 5047 transitions. [2022-03-03 18:37:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:57,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:57,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:57,294 INFO L225 Difference]: With dead ends: 1745 [2022-03-03 18:37:57,294 INFO L226 Difference]: Without dead ends: 1641 [2022-03-03 18:37:57,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:57,295 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 [2022-03-03 18:37:57,295 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] [2022-03-03 18:37:57,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-03-03 18:37:57,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1499. [2022-03-03 18:37:57,310 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) [2022-03-03 18:37:57,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 4394 transitions. [2022-03-03 18:37:57,313 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 4394 transitions. Word has length 26 [2022-03-03 18:37:57,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:57,313 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 4394 transitions. [2022-03-03 18:37:57,313 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) [2022-03-03 18:37:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 4394 transitions. [2022-03-03 18:37:57,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:57,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:57,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:57,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-03 18:37:57,315 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:57,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:57,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1269022521, now seen corresponding path program 116 times [2022-03-03 18:37:57,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:57,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903524505] [2022-03-03 18:37:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:57,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:57,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:57,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903524505] [2022-03-03 18:37:57,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903524505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:57,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:57,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:57,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188518980] [2022-03-03 18:37:57,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:57,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:57,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:57,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:57,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:57,383 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) [2022-03-03 18:37:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:57,613 INFO L93 Difference]: Finished difference Result 1652 states and 4784 transitions. [2022-03-03 18:37:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:57,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:57,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:57,616 INFO L225 Difference]: With dead ends: 1652 [2022-03-03 18:37:57,616 INFO L226 Difference]: Without dead ends: 1573 [2022-03-03 18:37:57,616 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 [2022-03-03 18:37:57,617 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 [2022-03-03 18:37:57,617 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] [2022-03-03 18:37:57,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-03 18:37:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1493. [2022-03-03 18:37:57,631 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) [2022-03-03 18:37:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 4384 transitions. [2022-03-03 18:37:57,633 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 4384 transitions. Word has length 26 [2022-03-03 18:37:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:57,633 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 4384 transitions. [2022-03-03 18:37:57,633 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) [2022-03-03 18:37:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 4384 transitions. [2022-03-03 18:37:57,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:57,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:57,635 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] [2022-03-03 18:37:57,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-03 18:37:57,635 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:57,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:57,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1046261569, now seen corresponding path program 117 times [2022-03-03 18:37:57,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:57,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924095759] [2022-03-03 18:37:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:57,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:57,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:57,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924095759] [2022-03-03 18:37:57,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924095759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:57,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:57,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:57,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741490709] [2022-03-03 18:37:57,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:57,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:57,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:57,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:57,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:57,707 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) [2022-03-03 18:37:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:57,948 INFO L93 Difference]: Finished difference Result 1700 states and 4918 transitions. [2022-03-03 18:37:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:57,948 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 [2022-03-03 18:37:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:57,951 INFO L225 Difference]: With dead ends: 1700 [2022-03-03 18:37:57,951 INFO L226 Difference]: Without dead ends: 1604 [2022-03-03 18:37:57,952 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 [2022-03-03 18:37:57,952 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 [2022-03-03 18:37:57,952 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] [2022-03-03 18:37:57,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-03-03 18:37:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1481. [2022-03-03 18:37:57,966 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) [2022-03-03 18:37:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4361 transitions. [2022-03-03 18:37:57,968 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4361 transitions. Word has length 26 [2022-03-03 18:37:57,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:57,968 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4361 transitions. [2022-03-03 18:37:57,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:57,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4361 transitions. [2022-03-03 18:37:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:57,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:57,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:57,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-03 18:37:57,970 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:57,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1875949507, now seen corresponding path program 118 times [2022-03-03 18:37:57,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:57,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126872566] [2022-03-03 18:37:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:58,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:58,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126872566] [2022-03-03 18:37:58,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126872566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:58,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:58,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:37:58,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847246258] [2022-03-03 18:37:58,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:58,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:37:58,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:58,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:37:58,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:37:58,047 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) [2022-03-03 18:37:58,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:58,248 INFO L93 Difference]: Finished difference Result 1724 states and 4976 transitions. [2022-03-03 18:37:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:37:58,248 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 [2022-03-03 18:37:58,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:58,251 INFO L225 Difference]: With dead ends: 1724 [2022-03-03 18:37:58,251 INFO L226 Difference]: Without dead ends: 1560 [2022-03-03 18:37:58,251 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 [2022-03-03 18:37:58,252 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 [2022-03-03 18:37:58,252 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] [2022-03-03 18:37:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2022-03-03 18:37:58,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1470. [2022-03-03 18:37:58,266 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) [2022-03-03 18:37:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4309 transitions. [2022-03-03 18:37:58,268 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4309 transitions. Word has length 26 [2022-03-03 18:37:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:58,268 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4309 transitions. [2022-03-03 18:37:58,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4309 transitions. [2022-03-03 18:37:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:58,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:58,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:58,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-03 18:37:58,270 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:58,271 INFO L85 PathProgramCache]: Analyzing trace with hash 989201241, now seen corresponding path program 119 times [2022-03-03 18:37:58,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:58,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34713435] [2022-03-03 18:37:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:58,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:58,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:58,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34713435] [2022-03-03 18:37:58,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34713435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:58,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:58,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:58,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400325210] [2022-03-03 18:37:58,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:58,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:58,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:58,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:58,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:58,339 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) [2022-03-03 18:37:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:58,569 INFO L93 Difference]: Finished difference Result 1671 states and 4816 transitions. [2022-03-03 18:37:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:58,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:58,572 INFO L225 Difference]: With dead ends: 1671 [2022-03-03 18:37:58,572 INFO L226 Difference]: Without dead ends: 1566 [2022-03-03 18:37:58,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:58,573 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 [2022-03-03 18:37:58,573 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] [2022-03-03 18:37:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-03-03 18:37:58,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1446. [2022-03-03 18:37:58,587 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) [2022-03-03 18:37:58,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 4243 transitions. [2022-03-03 18:37:58,589 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 4243 transitions. Word has length 26 [2022-03-03 18:37:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:58,590 INFO L470 AbstractCegarLoop]: Abstraction has 1446 states and 4243 transitions. [2022-03-03 18:37:58,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:58,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 4243 transitions. [2022-03-03 18:37:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:58,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:58,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:58,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-03 18:37:58,592 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:58,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:58,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1106458743, now seen corresponding path program 120 times [2022-03-03 18:37:58,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:58,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387579227] [2022-03-03 18:37:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:58,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:58,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:58,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:58,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387579227] [2022-03-03 18:37:58,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387579227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:58,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:58,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:58,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250300487] [2022-03-03 18:37:58,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:58,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:58,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:58,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:58,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:58,658 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) [2022-03-03 18:37:58,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:58,885 INFO L93 Difference]: Finished difference Result 1597 states and 4640 transitions. [2022-03-03 18:37:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:58,885 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 [2022-03-03 18:37:58,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:58,888 INFO L225 Difference]: With dead ends: 1597 [2022-03-03 18:37:58,888 INFO L226 Difference]: Without dead ends: 1518 [2022-03-03 18:37:58,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:58,888 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:58,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 264 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:58,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-03-03 18:37:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1448. [2022-03-03 18:37:58,901 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) [2022-03-03 18:37:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 4250 transitions. [2022-03-03 18:37:58,904 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 4250 transitions. Word has length 26 [2022-03-03 18:37:58,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:58,904 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 4250 transitions. [2022-03-03 18:37:58,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:58,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 4250 transitions. [2022-03-03 18:37:58,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:58,905 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:58,906 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] [2022-03-03 18:37:58,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-03 18:37:58,906 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:58,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:58,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1442566335, now seen corresponding path program 121 times [2022-03-03 18:37:58,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:58,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444928066] [2022-03-03 18:37:58,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:58,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:58,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:58,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:58,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444928066] [2022-03-03 18:37:58,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444928066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:58,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:58,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:58,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336803793] [2022-03-03 18:37:58,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:58,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:58,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:58,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:58,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:58,983 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) [2022-03-03 18:37:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:59,218 INFO L93 Difference]: Finished difference Result 1668 states and 4799 transitions. [2022-03-03 18:37:59,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:59,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:59,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:59,221 INFO L225 Difference]: With dead ends: 1668 [2022-03-03 18:37:59,221 INFO L226 Difference]: Without dead ends: 1579 [2022-03-03 18:37:59,221 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 [2022-03-03 18:37:59,222 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:37:59,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 266 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:37:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-03-03 18:37:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1445. [2022-03-03 18:37:59,250 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) [2022-03-03 18:37:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 4236 transitions. [2022-03-03 18:37:59,252 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 4236 transitions. Word has length 26 [2022-03-03 18:37:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:59,253 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 4236 transitions. [2022-03-03 18:37:59,253 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) [2022-03-03 18:37:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 4236 transitions. [2022-03-03 18:37:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:59,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:59,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:59,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-03 18:37:59,255 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash -462469799, now seen corresponding path program 122 times [2022-03-03 18:37:59,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:59,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7971449] [2022-03-03 18:37:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:59,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:59,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:59,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7971449] [2022-03-03 18:37:59,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7971449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:59,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:59,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:59,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399626557] [2022-03-03 18:37:59,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:59,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:59,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:59,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:59,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:59,330 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) [2022-03-03 18:37:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:59,556 INFO L93 Difference]: Finished difference Result 1656 states and 4808 transitions. [2022-03-03 18:37:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:59,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:37:59,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:59,559 INFO L225 Difference]: With dead ends: 1656 [2022-03-03 18:37:59,559 INFO L226 Difference]: Without dead ends: 1553 [2022-03-03 18:37:59,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:59,559 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 [2022-03-03 18:37:59,560 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] [2022-03-03 18:37:59,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2022-03-03 18:37:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1387. [2022-03-03 18:37:59,573 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) [2022-03-03 18:37:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 4096 transitions. [2022-03-03 18:37:59,575 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 4096 transitions. Word has length 26 [2022-03-03 18:37:59,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:59,575 INFO L470 AbstractCegarLoop]: Abstraction has 1387 states and 4096 transitions. [2022-03-03 18:37:59,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 4096 transitions. [2022-03-03 18:37:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:59,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:59,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:37:59,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-03 18:37:59,577 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:59,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:59,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1616183895, now seen corresponding path program 123 times [2022-03-03 18:37:59,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:59,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756259704] [2022-03-03 18:37:59,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:59,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:59,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:59,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756259704] [2022-03-03 18:37:59,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756259704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:59,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:59,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:59,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001561846] [2022-03-03 18:37:59,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:59,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:59,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:59,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:59,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:59,654 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) [2022-03-03 18:37:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:37:59,877 INFO L93 Difference]: Finished difference Result 1532 states and 4467 transitions. [2022-03-03 18:37:59,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:37:59,877 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 [2022-03-03 18:37:59,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:37:59,880 INFO L225 Difference]: With dead ends: 1532 [2022-03-03 18:37:59,880 INFO L226 Difference]: Without dead ends: 1453 [2022-03-03 18:37:59,880 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 [2022-03-03 18:37:59,880 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 [2022-03-03 18:37:59,880 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] [2022-03-03 18:37:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-03 18:37:59,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1388. [2022-03-03 18:37:59,893 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) [2022-03-03 18:37:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4100 transitions. [2022-03-03 18:37:59,895 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4100 transitions. Word has length 26 [2022-03-03 18:37:59,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:37:59,896 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4100 transitions. [2022-03-03 18:37:59,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:37:59,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4100 transitions. [2022-03-03 18:37:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:37:59,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:59,897 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] [2022-03-03 18:37:59,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-03 18:37:59,897 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:37:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash -320117031, now seen corresponding path program 124 times [2022-03-03 18:37:59,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:59,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896771887] [2022-03-03 18:37:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:59,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:37:59,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:37:59,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:37:59,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896771887] [2022-03-03 18:37:59,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896771887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:37:59,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:37:59,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:37:59,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345696772] [2022-03-03 18:37:59,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:37:59,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:37:59,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:37:59,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:37:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:37:59,970 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) [2022-03-03 18:38:00,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:00,205 INFO L93 Difference]: Finished difference Result 1568 states and 4567 transitions. [2022-03-03 18:38:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:00,206 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 [2022-03-03 18:38:00,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:00,208 INFO L225 Difference]: With dead ends: 1568 [2022-03-03 18:38:00,208 INFO L226 Difference]: Without dead ends: 1464 [2022-03-03 18:38:00,208 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 [2022-03-03 18:38:00,209 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 [2022-03-03 18:38:00,209 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] [2022-03-03 18:38:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-03 18:38:00,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1391. [2022-03-03 18:38:00,222 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) [2022-03-03 18:38:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4109 transitions. [2022-03-03 18:38:00,224 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4109 transitions. Word has length 26 [2022-03-03 18:38:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:00,224 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4109 transitions. [2022-03-03 18:38:00,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4109 transitions. [2022-03-03 18:38:00,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:00,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:00,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:00,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-03 18:38:00,226 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:00,226 INFO L85 PathProgramCache]: Analyzing trace with hash 47255353, now seen corresponding path program 125 times [2022-03-03 18:38:00,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:00,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020281115] [2022-03-03 18:38:00,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:00,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:00,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:00,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:00,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020281115] [2022-03-03 18:38:00,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020281115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:00,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:00,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:00,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016379668] [2022-03-03 18:38:00,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:00,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:00,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:00,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:00,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:00,295 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) [2022-03-03 18:38:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:00,516 INFO L93 Difference]: Finished difference Result 1536 states and 4479 transitions. [2022-03-03 18:38:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:00,516 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:00,519 INFO L225 Difference]: With dead ends: 1536 [2022-03-03 18:38:00,519 INFO L226 Difference]: Without dead ends: 1457 [2022-03-03 18:38:00,519 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 [2022-03-03 18:38:00,519 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 [2022-03-03 18:38:00,520 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] [2022-03-03 18:38:00,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-03-03 18:38:00,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1392. [2022-03-03 18:38:00,534 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) [2022-03-03 18:38:00,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 4113 transitions. [2022-03-03 18:38:00,536 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 4113 transitions. Word has length 26 [2022-03-03 18:38:00,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:00,536 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 4113 transitions. [2022-03-03 18:38:00,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:00,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 4113 transitions. [2022-03-03 18:38:00,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:00,538 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:00,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:00,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-03 18:38:00,539 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:00,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:00,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2026938559, now seen corresponding path program 126 times [2022-03-03 18:38:00,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:00,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113451195] [2022-03-03 18:38:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:00,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:00,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:00,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:00,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113451195] [2022-03-03 18:38:00,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113451195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:00,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:00,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:00,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286065537] [2022-03-03 18:38:00,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:00,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:00,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:00,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:00,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:00,619 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) [2022-03-03 18:38:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:00,858 INFO L93 Difference]: Finished difference Result 1543 states and 4492 transitions. [2022-03-03 18:38:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:00,861 INFO L225 Difference]: With dead ends: 1543 [2022-03-03 18:38:00,861 INFO L226 Difference]: Without dead ends: 1460 [2022-03-03 18:38:00,861 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 [2022-03-03 18:38:00,862 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 [2022-03-03 18:38:00,862 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] [2022-03-03 18:38:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-03-03 18:38:00,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1393. [2022-03-03 18:38:00,877 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) [2022-03-03 18:38:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 4115 transitions. [2022-03-03 18:38:00,879 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 4115 transitions. Word has length 26 [2022-03-03 18:38:00,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:00,879 INFO L470 AbstractCegarLoop]: Abstraction has 1393 states and 4115 transitions. [2022-03-03 18:38:00,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 4115 transitions. [2022-03-03 18:38:00,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:00,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:00,881 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] [2022-03-03 18:38:00,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-03 18:38:00,881 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:00,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1622607935, now seen corresponding path program 127 times [2022-03-03 18:38:00,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:00,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121222502] [2022-03-03 18:38:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:00,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:00,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:00,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121222502] [2022-03-03 18:38:00,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121222502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:00,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:00,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:00,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439357111] [2022-03-03 18:38:00,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:00,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:00,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:00,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:00,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:00,949 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) [2022-03-03 18:38:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:01,188 INFO L93 Difference]: Finished difference Result 1572 states and 4601 transitions. [2022-03-03 18:38:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:01,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:01,190 INFO L225 Difference]: With dead ends: 1572 [2022-03-03 18:38:01,191 INFO L226 Difference]: Without dead ends: 1475 [2022-03-03 18:38:01,191 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 [2022-03-03 18:38:01,191 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:01,191 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] [2022-03-03 18:38:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2022-03-03 18:38:01,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1390. [2022-03-03 18:38:01,205 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) [2022-03-03 18:38:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 4104 transitions. [2022-03-03 18:38:01,207 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 4104 transitions. Word has length 26 [2022-03-03 18:38:01,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:01,207 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 4104 transitions. [2022-03-03 18:38:01,207 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) [2022-03-03 18:38:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 4104 transitions. [2022-03-03 18:38:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:01,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:01,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:01,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-03 18:38:01,209 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:01,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1534671201, now seen corresponding path program 128 times [2022-03-03 18:38:01,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:01,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022798651] [2022-03-03 18:38:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:01,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:01,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022798651] [2022-03-03 18:38:01,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022798651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:01,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:01,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:01,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757413849] [2022-03-03 18:38:01,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:01,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:01,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:01,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:01,283 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) [2022-03-03 18:38:01,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:01,510 INFO L93 Difference]: Finished difference Result 1586 states and 4616 transitions. [2022-03-03 18:38:01,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:01,511 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 [2022-03-03 18:38:01,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:01,513 INFO L225 Difference]: With dead ends: 1586 [2022-03-03 18:38:01,513 INFO L226 Difference]: Without dead ends: 1498 [2022-03-03 18:38:01,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:01,514 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 [2022-03-03 18:38:01,514 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] [2022-03-03 18:38:01,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-03-03 18:38:01,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1391. [2022-03-03 18:38:01,527 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) [2022-03-03 18:38:01,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4105 transitions. [2022-03-03 18:38:01,529 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4105 transitions. Word has length 26 [2022-03-03 18:38:01,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:01,529 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4105 transitions. [2022-03-03 18:38:01,529 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) [2022-03-03 18:38:01,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4105 transitions. [2022-03-03 18:38:01,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:01,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:01,531 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] [2022-03-03 18:38:01,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-03 18:38:01,531 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:01,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:01,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1409375929, now seen corresponding path program 129 times [2022-03-03 18:38:01,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:01,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56222071] [2022-03-03 18:38:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:01,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:01,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:01,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56222071] [2022-03-03 18:38:01,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56222071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:01,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:01,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:01,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941362132] [2022-03-03 18:38:01,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:01,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:01,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:01,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:01,609 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) [2022-03-03 18:38:01,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:01,834 INFO L93 Difference]: Finished difference Result 1597 states and 4669 transitions. [2022-03-03 18:38:01,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:01,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:01,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:01,837 INFO L225 Difference]: With dead ends: 1597 [2022-03-03 18:38:01,837 INFO L226 Difference]: Without dead ends: 1518 [2022-03-03 18:38:01,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:01,837 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 [2022-03-03 18:38:01,838 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] [2022-03-03 18:38:01,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-03-03 18:38:01,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1397. [2022-03-03 18:38:01,852 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) [2022-03-03 18:38:01,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 4125 transitions. [2022-03-03 18:38:01,854 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 4125 transitions. Word has length 26 [2022-03-03 18:38:01,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:01,854 INFO L470 AbstractCegarLoop]: Abstraction has 1397 states and 4125 transitions. [2022-03-03 18:38:01,854 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) [2022-03-03 18:38:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 4125 transitions. [2022-03-03 18:38:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:01,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:01,856 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] [2022-03-03 18:38:01,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-03 18:38:01,856 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:01,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:01,856 INFO L85 PathProgramCache]: Analyzing trace with hash -526924997, now seen corresponding path program 130 times [2022-03-03 18:38:01,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:01,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792705701] [2022-03-03 18:38:01,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:01,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:01,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:01,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792705701] [2022-03-03 18:38:01,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792705701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:01,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:01,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:01,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135412883] [2022-03-03 18:38:01,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:01,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:01,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:01,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:01,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:01,924 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) [2022-03-03 18:38:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:02,170 INFO L93 Difference]: Finished difference Result 1624 states and 4728 transitions. [2022-03-03 18:38:02,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:02,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:02,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:02,173 INFO L225 Difference]: With dead ends: 1624 [2022-03-03 18:38:02,173 INFO L226 Difference]: Without dead ends: 1520 [2022-03-03 18:38:02,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:02,173 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 [2022-03-03 18:38:02,173 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] [2022-03-03 18:38:02,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-03-03 18:38:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1388. [2022-03-03 18:38:02,186 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) [2022-03-03 18:38:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4091 transitions. [2022-03-03 18:38:02,198 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4091 transitions. Word has length 26 [2022-03-03 18:38:02,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:02,198 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4091 transitions. [2022-03-03 18:38:02,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:02,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4091 transitions. [2022-03-03 18:38:02,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:02,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:02,200 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] [2022-03-03 18:38:02,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-03 18:38:02,200 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:02,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:02,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1184088519, now seen corresponding path program 131 times [2022-03-03 18:38:02,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:02,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906970808] [2022-03-03 18:38:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:02,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:02,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:02,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906970808] [2022-03-03 18:38:02,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906970808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:02,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:02,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:02,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973104415] [2022-03-03 18:38:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:02,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:02,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:02,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:02,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:02,272 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) [2022-03-03 18:38:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:02,492 INFO L93 Difference]: Finished difference Result 1580 states and 4623 transitions. [2022-03-03 18:38:02,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:02,493 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:02,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:02,495 INFO L225 Difference]: With dead ends: 1580 [2022-03-03 18:38:02,495 INFO L226 Difference]: Without dead ends: 1492 [2022-03-03 18:38:02,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:02,496 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 [2022-03-03 18:38:02,496 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] [2022-03-03 18:38:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-03-03 18:38:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1389. [2022-03-03 18:38:02,510 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) [2022-03-03 18:38:02,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 4096 transitions. [2022-03-03 18:38:02,512 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 4096 transitions. Word has length 26 [2022-03-03 18:38:02,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:02,512 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 4096 transitions. [2022-03-03 18:38:02,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 4096 transitions. [2022-03-03 18:38:02,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:02,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:02,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:02,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-03 18:38:02,514 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:02,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1559673499, now seen corresponding path program 132 times [2022-03-03 18:38:02,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:02,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923000207] [2022-03-03 18:38:02,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:02,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:02,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:02,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923000207] [2022-03-03 18:38:02,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923000207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:02,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:02,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:02,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000920462] [2022-03-03 18:38:02,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:02,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:02,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:02,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:02,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:02,603 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) [2022-03-03 18:38:02,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:02,830 INFO L93 Difference]: Finished difference Result 1516 states and 4425 transitions. [2022-03-03 18:38:02,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:02,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:02,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:02,833 INFO L225 Difference]: With dead ends: 1516 [2022-03-03 18:38:02,833 INFO L226 Difference]: Without dead ends: 1437 [2022-03-03 18:38:02,833 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 [2022-03-03 18:38:02,833 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 [2022-03-03 18:38:02,834 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] [2022-03-03 18:38:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-03-03 18:38:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1388. [2022-03-03 18:38:02,848 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) [2022-03-03 18:38:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4092 transitions. [2022-03-03 18:38:02,850 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4092 transitions. Word has length 26 [2022-03-03 18:38:02,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:02,850 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4092 transitions. [2022-03-03 18:38:02,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:02,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4092 transitions. [2022-03-03 18:38:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:02,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:02,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:02,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-03 18:38:02,852 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:02,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:02,852 INFO L85 PathProgramCache]: Analyzing trace with hash -755610591, now seen corresponding path program 133 times [2022-03-03 18:38:02,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:02,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228991563] [2022-03-03 18:38:02,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:02,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:02,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:02,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228991563] [2022-03-03 18:38:02,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228991563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:02,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:02,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:02,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85300232] [2022-03-03 18:38:02,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:02,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:02,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:02,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:02,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:02,921 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) [2022-03-03 18:38:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:03,150 INFO L93 Difference]: Finished difference Result 1536 states and 4461 transitions. [2022-03-03 18:38:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:03,150 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 [2022-03-03 18:38:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:03,153 INFO L225 Difference]: With dead ends: 1536 [2022-03-03 18:38:03,153 INFO L226 Difference]: Without dead ends: 1453 [2022-03-03 18:38:03,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:03,153 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 [2022-03-03 18:38:03,153 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] [2022-03-03 18:38:03,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-03 18:38:03,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1386. [2022-03-03 18:38:03,167 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) [2022-03-03 18:38:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 4085 transitions. [2022-03-03 18:38:03,169 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 4085 transitions. Word has length 26 [2022-03-03 18:38:03,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:03,169 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 4085 transitions. [2022-03-03 18:38:03,169 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) [2022-03-03 18:38:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 4085 transitions. [2022-03-03 18:38:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:03,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:03,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:03,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-03 18:38:03,171 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:03,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash 167528953, now seen corresponding path program 134 times [2022-03-03 18:38:03,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:03,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105011669] [2022-03-03 18:38:03,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:03,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:03,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:03,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:03,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105011669] [2022-03-03 18:38:03,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105011669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:03,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:03,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:03,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064539234] [2022-03-03 18:38:03,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:03,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:03,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:03,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:03,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:03,248 INFO L87 Difference]: Start difference. First operand 1386 states and 4085 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:03,480 INFO L93 Difference]: Finished difference Result 1582 states and 4605 transitions. [2022-03-03 18:38:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:03,480 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:03,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:03,483 INFO L225 Difference]: With dead ends: 1582 [2022-03-03 18:38:03,483 INFO L226 Difference]: Without dead ends: 1497 [2022-03-03 18:38:03,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:03,483 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 [2022-03-03 18:38:03,483 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] [2022-03-03 18:38:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-03-03 18:38:03,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1383. [2022-03-03 18:38:03,496 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) [2022-03-03 18:38:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 4072 transitions. [2022-03-03 18:38:03,498 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 4072 transitions. Word has length 26 [2022-03-03 18:38:03,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:03,498 INFO L470 AbstractCegarLoop]: Abstraction has 1383 states and 4072 transitions. [2022-03-03 18:38:03,498 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) [2022-03-03 18:38:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 4072 transitions. [2022-03-03 18:38:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:03,500 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:03,500 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] [2022-03-03 18:38:03,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-03 18:38:03,500 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:03,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:03,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2004677727, now seen corresponding path program 135 times [2022-03-03 18:38:03,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:03,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327105860] [2022-03-03 18:38:03,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:03,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:03,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:03,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327105860] [2022-03-03 18:38:03,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327105860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:03,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:03,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:03,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382491584] [2022-03-03 18:38:03,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:03,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:03,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:03,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:03,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:03,584 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) [2022-03-03 18:38:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:03,825 INFO L93 Difference]: Finished difference Result 1557 states and 4506 transitions. [2022-03-03 18:38:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:03,826 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 [2022-03-03 18:38:03,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:03,828 INFO L225 Difference]: With dead ends: 1557 [2022-03-03 18:38:03,828 INFO L226 Difference]: Without dead ends: 1464 [2022-03-03 18:38:03,829 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 [2022-03-03 18:38:03,829 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 [2022-03-03 18:38:03,829 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] [2022-03-03 18:38:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-03 18:38:03,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1372. [2022-03-03 18:38:03,842 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) [2022-03-03 18:38:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 4050 transitions. [2022-03-03 18:38:03,845 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 4050 transitions. Word has length 26 [2022-03-03 18:38:03,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:03,845 INFO L470 AbstractCegarLoop]: Abstraction has 1372 states and 4050 transitions. [2022-03-03 18:38:03,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:03,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 4050 transitions. [2022-03-03 18:38:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:03,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:03,847 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] [2022-03-03 18:38:03,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-03 18:38:03,847 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:03,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:03,847 INFO L85 PathProgramCache]: Analyzing trace with hash -52542947, now seen corresponding path program 136 times [2022-03-03 18:38:03,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:03,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646501331] [2022-03-03 18:38:03,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:03,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:03,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:03,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646501331] [2022-03-03 18:38:03,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646501331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:03,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:03,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:38:03,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96225516] [2022-03-03 18:38:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:03,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:38:03,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:03,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:38:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:38:03,912 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) [2022-03-03 18:38:04,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:04,054 INFO L93 Difference]: Finished difference Result 1654 states and 4846 transitions. [2022-03-03 18:38:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:38:04,054 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 [2022-03-03 18:38:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:04,057 INFO L225 Difference]: With dead ends: 1654 [2022-03-03 18:38:04,057 INFO L226 Difference]: Without dead ends: 1575 [2022-03-03 18:38:04,057 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 [2022-03-03 18:38:04,057 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 [2022-03-03 18:38:04,057 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] [2022-03-03 18:38:04,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2022-03-03 18:38:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1438. [2022-03-03 18:38:04,071 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) [2022-03-03 18:38:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4247 transitions. [2022-03-03 18:38:04,073 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4247 transitions. Word has length 26 [2022-03-03 18:38:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:04,073 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4247 transitions. [2022-03-03 18:38:04,073 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) [2022-03-03 18:38:04,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4247 transitions. [2022-03-03 18:38:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:04,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:04,075 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] [2022-03-03 18:38:04,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-03 18:38:04,075 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:04,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:04,075 INFO L85 PathProgramCache]: Analyzing trace with hash 283564645, now seen corresponding path program 137 times [2022-03-03 18:38:04,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:04,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851655443] [2022-03-03 18:38:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:04,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:04,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:04,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851655443] [2022-03-03 18:38:04,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851655443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:04,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:04,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:04,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407902271] [2022-03-03 18:38:04,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:04,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:04,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:04,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:04,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:04,133 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) [2022-03-03 18:38:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:04,320 INFO L93 Difference]: Finished difference Result 1749 states and 5118 transitions. [2022-03-03 18:38:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:04,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:04,323 INFO L225 Difference]: With dead ends: 1749 [2022-03-03 18:38:04,323 INFO L226 Difference]: Without dead ends: 1598 [2022-03-03 18:38:04,323 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 [2022-03-03 18:38:04,323 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:04,323 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] [2022-03-03 18:38:04,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-03-03 18:38:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1426. [2022-03-03 18:38:04,339 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) [2022-03-03 18:38:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4209 transitions. [2022-03-03 18:38:04,342 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4209 transitions. Word has length 26 [2022-03-03 18:38:04,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:04,342 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4209 transitions. [2022-03-03 18:38:04,342 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) [2022-03-03 18:38:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4209 transitions. [2022-03-03 18:38:04,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:04,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:04,344 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] [2022-03-03 18:38:04,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-03 18:38:04,344 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:04,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:04,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1770283717, now seen corresponding path program 138 times [2022-03-03 18:38:04,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:04,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735626971] [2022-03-03 18:38:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:04,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:04,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:04,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735626971] [2022-03-03 18:38:04,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735626971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:04,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:04,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:04,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872112957] [2022-03-03 18:38:04,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:04,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:04,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:04,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:04,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:04,414 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) [2022-03-03 18:38:04,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:04,590 INFO L93 Difference]: Finished difference Result 1711 states and 4999 transitions. [2022-03-03 18:38:04,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:04,590 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 [2022-03-03 18:38:04,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:04,593 INFO L225 Difference]: With dead ends: 1711 [2022-03-03 18:38:04,593 INFO L226 Difference]: Without dead ends: 1632 [2022-03-03 18:38:04,593 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 [2022-03-03 18:38:04,593 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 [2022-03-03 18:38:04,593 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] [2022-03-03 18:38:04,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2022-03-03 18:38:04,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1428. [2022-03-03 18:38:04,606 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) [2022-03-03 18:38:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 4214 transitions. [2022-03-03 18:38:04,609 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 4214 transitions. Word has length 26 [2022-03-03 18:38:04,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:04,609 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 4214 transitions. [2022-03-03 18:38:04,609 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) [2022-03-03 18:38:04,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 4214 transitions. [2022-03-03 18:38:04,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:04,610 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:04,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:04,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-03 18:38:04,611 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:04,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:04,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1434176125, now seen corresponding path program 139 times [2022-03-03 18:38:04,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:04,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618911145] [2022-03-03 18:38:04,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:04,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:04,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:04,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618911145] [2022-03-03 18:38:04,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618911145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:04,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:04,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:04,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941096289] [2022-03-03 18:38:04,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:04,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:04,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:04,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:04,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:04,669 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) [2022-03-03 18:38:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:04,861 INFO L93 Difference]: Finished difference Result 1743 states and 5115 transitions. [2022-03-03 18:38:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:04,861 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 [2022-03-03 18:38:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:04,864 INFO L225 Difference]: With dead ends: 1743 [2022-03-03 18:38:04,864 INFO L226 Difference]: Without dead ends: 1660 [2022-03-03 18:38:04,864 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 [2022-03-03 18:38:04,864 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 50 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:04,864 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] [2022-03-03 18:38:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-03-03 18:38:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1428. [2022-03-03 18:38:04,878 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) [2022-03-03 18:38:04,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 4212 transitions. [2022-03-03 18:38:04,880 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 4212 transitions. Word has length 26 [2022-03-03 18:38:04,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:04,880 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 4212 transitions. [2022-03-03 18:38:04,880 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) [2022-03-03 18:38:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 4212 transitions. [2022-03-03 18:38:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:04,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:04,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:04,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-03 18:38:04,882 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:04,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1375887461, now seen corresponding path program 140 times [2022-03-03 18:38:04,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:04,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479212981] [2022-03-03 18:38:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:04,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:04,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:04,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479212981] [2022-03-03 18:38:04,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479212981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:04,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:04,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:04,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426026777] [2022-03-03 18:38:04,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:04,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:04,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:04,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:04,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:04,940 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) [2022-03-03 18:38:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:05,148 INFO L93 Difference]: Finished difference Result 1741 states and 5077 transitions. [2022-03-03 18:38:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:05,159 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 [2022-03-03 18:38:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:05,162 INFO L225 Difference]: With dead ends: 1741 [2022-03-03 18:38:05,162 INFO L226 Difference]: Without dead ends: 1630 [2022-03-03 18:38:05,162 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 [2022-03-03 18:38:05,163 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 [2022-03-03 18:38:05,163 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] [2022-03-03 18:38:05,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-03-03 18:38:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1396. [2022-03-03 18:38:05,179 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) [2022-03-03 18:38:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 4116 transitions. [2022-03-03 18:38:05,181 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 4116 transitions. Word has length 26 [2022-03-03 18:38:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:05,181 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 4116 transitions. [2022-03-03 18:38:05,181 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) [2022-03-03 18:38:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 4116 transitions. [2022-03-03 18:38:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:05,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:05,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:05,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-03 18:38:05,183 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:05,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:05,183 INFO L85 PathProgramCache]: Analyzing trace with hash 780936475, now seen corresponding path program 141 times [2022-03-03 18:38:05,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:05,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799106321] [2022-03-03 18:38:05,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:05,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:05,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:05,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799106321] [2022-03-03 18:38:05,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799106321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:05,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:05,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:05,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124933451] [2022-03-03 18:38:05,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:05,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:05,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:05,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:05,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:05,243 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) [2022-03-03 18:38:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:05,437 INFO L93 Difference]: Finished difference Result 1586 states and 4638 transitions. [2022-03-03 18:38:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:05,437 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 [2022-03-03 18:38:05,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:05,440 INFO L225 Difference]: With dead ends: 1586 [2022-03-03 18:38:05,440 INFO L226 Difference]: Without dead ends: 1507 [2022-03-03 18:38:05,440 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 [2022-03-03 18:38:05,440 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:05,440 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] [2022-03-03 18:38:05,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-03-03 18:38:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1406. [2022-03-03 18:38:05,455 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) [2022-03-03 18:38:05,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4146 transitions. [2022-03-03 18:38:05,457 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4146 transitions. Word has length 26 [2022-03-03 18:38:05,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:05,457 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4146 transitions. [2022-03-03 18:38:05,457 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) [2022-03-03 18:38:05,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4146 transitions. [2022-03-03 18:38:05,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:05,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:05,459 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] [2022-03-03 18:38:05,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-03 18:38:05,459 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:05,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1155364451, now seen corresponding path program 142 times [2022-03-03 18:38:05,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:05,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319959644] [2022-03-03 18:38:05,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:05,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:05,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:05,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:05,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319959644] [2022-03-03 18:38:05,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319959644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:05,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:05,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:05,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629562519] [2022-03-03 18:38:05,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:05,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:05,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:05,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:05,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:05,525 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) [2022-03-03 18:38:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:05,724 INFO L93 Difference]: Finished difference Result 1622 states and 4736 transitions. [2022-03-03 18:38:05,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:05,725 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 [2022-03-03 18:38:05,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:05,727 INFO L225 Difference]: With dead ends: 1622 [2022-03-03 18:38:05,727 INFO L226 Difference]: Without dead ends: 1518 [2022-03-03 18:38:05,727 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 [2022-03-03 18:38:05,728 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 [2022-03-03 18:38:05,728 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] [2022-03-03 18:38:05,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-03-03 18:38:05,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1422. [2022-03-03 18:38:05,741 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) [2022-03-03 18:38:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4195 transitions. [2022-03-03 18:38:05,743 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4195 transitions. Word has length 26 [2022-03-03 18:38:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:05,744 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4195 transitions. [2022-03-03 18:38:05,744 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) [2022-03-03 18:38:05,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4195 transitions. [2022-03-03 18:38:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:05,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:05,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:05,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-03 18:38:05,745 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:05,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:05,746 INFO L85 PathProgramCache]: Analyzing trace with hash -787992067, now seen corresponding path program 143 times [2022-03-03 18:38:05,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:05,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149625621] [2022-03-03 18:38:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:05,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:05,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:05,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:05,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149625621] [2022-03-03 18:38:05,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149625621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:05,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:05,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:05,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303551994] [2022-03-03 18:38:05,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:05,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:05,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:05,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:05,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:05,829 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) [2022-03-03 18:38:06,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:06,061 INFO L93 Difference]: Finished difference Result 1651 states and 4814 transitions. [2022-03-03 18:38:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:06,061 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 [2022-03-03 18:38:06,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:06,064 INFO L225 Difference]: With dead ends: 1651 [2022-03-03 18:38:06,064 INFO L226 Difference]: Without dead ends: 1572 [2022-03-03 18:38:06,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:06,064 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 50 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:06,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 264 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:06,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-03-03 18:38:06,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1446. [2022-03-03 18:38:06,079 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) [2022-03-03 18:38:06,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 4261 transitions. [2022-03-03 18:38:06,081 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 4261 transitions. Word has length 26 [2022-03-03 18:38:06,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:06,081 INFO L470 AbstractCegarLoop]: Abstraction has 1446 states and 4261 transitions. [2022-03-03 18:38:06,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:06,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 4261 transitions. [2022-03-03 18:38:06,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:06,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:06,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:06,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-03 18:38:06,083 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:06,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:06,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1191691139, now seen corresponding path program 144 times [2022-03-03 18:38:06,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:06,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981051610] [2022-03-03 18:38:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:06,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:06,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:06,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981051610] [2022-03-03 18:38:06,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981051610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:06,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:06,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:06,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663969088] [2022-03-03 18:38:06,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:06,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:06,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:06,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:06,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:06,161 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) [2022-03-03 18:38:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:06,391 INFO L93 Difference]: Finished difference Result 1620 states and 4730 transitions. [2022-03-03 18:38:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:06,394 INFO L225 Difference]: With dead ends: 1620 [2022-03-03 18:38:06,394 INFO L226 Difference]: Without dead ends: 1509 [2022-03-03 18:38:06,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:06,396 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 [2022-03-03 18:38:06,396 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] [2022-03-03 18:38:06,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2022-03-03 18:38:06,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1461. [2022-03-03 18:38:06,410 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) [2022-03-03 18:38:06,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4308 transitions. [2022-03-03 18:38:06,412 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4308 transitions. Word has length 26 [2022-03-03 18:38:06,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:06,413 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4308 transitions. [2022-03-03 18:38:06,413 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) [2022-03-03 18:38:06,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4308 transitions. [2022-03-03 18:38:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:06,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:06,414 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] [2022-03-03 18:38:06,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-03 18:38:06,415 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1837111941, now seen corresponding path program 145 times [2022-03-03 18:38:06,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:06,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865555585] [2022-03-03 18:38:06,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:06,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:06,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:06,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865555585] [2022-03-03 18:38:06,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865555585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:06,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:06,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:06,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437343695] [2022-03-03 18:38:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:06,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:06,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:06,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:06,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:06,514 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) [2022-03-03 18:38:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:06,761 INFO L93 Difference]: Finished difference Result 1737 states and 5065 transitions. [2022-03-03 18:38:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:06,762 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:06,765 INFO L225 Difference]: With dead ends: 1737 [2022-03-03 18:38:06,765 INFO L226 Difference]: Without dead ends: 1640 [2022-03-03 18:38:06,765 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 [2022-03-03 18:38:06,765 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 56 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:06,765 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] [2022-03-03 18:38:06,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-03-03 18:38:06,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1487. [2022-03-03 18:38:06,780 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) [2022-03-03 18:38:06,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 4396 transitions. [2022-03-03 18:38:06,782 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 4396 transitions. Word has length 26 [2022-03-03 18:38:06,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:06,782 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 4396 transitions. [2022-03-03 18:38:06,782 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) [2022-03-03 18:38:06,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 4396 transitions. [2022-03-03 18:38:06,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:06,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:06,784 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] [2022-03-03 18:38:06,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-03 18:38:06,784 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:06,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:06,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1925048675, now seen corresponding path program 146 times [2022-03-03 18:38:06,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:06,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645167529] [2022-03-03 18:38:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:06,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:06,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:06,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645167529] [2022-03-03 18:38:06,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645167529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:06,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:06,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:06,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846168407] [2022-03-03 18:38:06,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:06,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:06,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:06,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:06,863 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) [2022-03-03 18:38:07,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:07,101 INFO L93 Difference]: Finished difference Result 1672 states and 4884 transitions. [2022-03-03 18:38:07,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:07,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:07,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:07,104 INFO L225 Difference]: With dead ends: 1672 [2022-03-03 18:38:07,104 INFO L226 Difference]: Without dead ends: 1584 [2022-03-03 18:38:07,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:07,104 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 [2022-03-03 18:38:07,104 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] [2022-03-03 18:38:07,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-03-03 18:38:07,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1485. [2022-03-03 18:38:07,119 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) [2022-03-03 18:38:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 4391 transitions. [2022-03-03 18:38:07,121 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 4391 transitions. Word has length 26 [2022-03-03 18:38:07,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:07,121 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 4391 transitions. [2022-03-03 18:38:07,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:07,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 4391 transitions. [2022-03-03 18:38:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:07,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:07,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:07,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-03 18:38:07,123 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2063040359, now seen corresponding path program 147 times [2022-03-03 18:38:07,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:07,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7252537] [2022-03-03 18:38:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:07,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:07,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:07,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7252537] [2022-03-03 18:38:07,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7252537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:07,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:07,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:07,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099633024] [2022-03-03 18:38:07,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:07,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:07,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:07,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:07,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:07,191 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) [2022-03-03 18:38:07,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:07,427 INFO L93 Difference]: Finished difference Result 1717 states and 5001 transitions. [2022-03-03 18:38:07,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:07,427 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 [2022-03-03 18:38:07,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:07,430 INFO L225 Difference]: With dead ends: 1717 [2022-03-03 18:38:07,430 INFO L226 Difference]: Without dead ends: 1584 [2022-03-03 18:38:07,430 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 [2022-03-03 18:38:07,431 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 [2022-03-03 18:38:07,431 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] [2022-03-03 18:38:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-03-03 18:38:07,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1461. [2022-03-03 18:38:07,446 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) [2022-03-03 18:38:07,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4317 transitions. [2022-03-03 18:38:07,448 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4317 transitions. Word has length 26 [2022-03-03 18:38:07,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:07,449 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4317 transitions. [2022-03-03 18:38:07,449 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) [2022-03-03 18:38:07,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4317 transitions. [2022-03-03 18:38:07,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:07,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:07,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:07,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-03 18:38:07,451 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:07,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2079486193, now seen corresponding path program 148 times [2022-03-03 18:38:07,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:07,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107746316] [2022-03-03 18:38:07,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:07,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:07,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:07,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107746316] [2022-03-03 18:38:07,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107746316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:07,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:07,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:07,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981594256] [2022-03-03 18:38:07,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:07,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:07,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:07,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:07,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:07,517 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) [2022-03-03 18:38:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:07,766 INFO L93 Difference]: Finished difference Result 1724 states and 4996 transitions. [2022-03-03 18:38:07,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:07,766 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 [2022-03-03 18:38:07,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:07,769 INFO L225 Difference]: With dead ends: 1724 [2022-03-03 18:38:07,769 INFO L226 Difference]: Without dead ends: 1544 [2022-03-03 18:38:07,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:07,769 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:07,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 289 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:07,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-03-03 18:38:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1422. [2022-03-03 18:38:07,783 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) [2022-03-03 18:38:07,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4176 transitions. [2022-03-03 18:38:07,785 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4176 transitions. Word has length 26 [2022-03-03 18:38:07,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:07,785 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4176 transitions. [2022-03-03 18:38:07,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:07,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4176 transitions. [2022-03-03 18:38:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:07,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:07,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:07,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-03 18:38:07,787 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:07,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:07,787 INFO L85 PathProgramCache]: Analyzing trace with hash -700501831, now seen corresponding path program 149 times [2022-03-03 18:38:07,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:07,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792917207] [2022-03-03 18:38:07,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:07,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:07,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:07,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792917207] [2022-03-03 18:38:07,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792917207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:07,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:07,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:07,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082986739] [2022-03-03 18:38:07,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:07,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:07,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:07,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:07,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:07,860 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) [2022-03-03 18:38:08,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:08,090 INFO L93 Difference]: Finished difference Result 1593 states and 4622 transitions. [2022-03-03 18:38:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:08,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:08,093 INFO L225 Difference]: With dead ends: 1593 [2022-03-03 18:38:08,093 INFO L226 Difference]: Without dead ends: 1514 [2022-03-03 18:38:08,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:08,093 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 [2022-03-03 18:38:08,093 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] [2022-03-03 18:38:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-03-03 18:38:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1421. [2022-03-03 18:38:08,108 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) [2022-03-03 18:38:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 4172 transitions. [2022-03-03 18:38:08,110 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 4172 transitions. Word has length 26 [2022-03-03 18:38:08,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:08,110 INFO L470 AbstractCegarLoop]: Abstraction has 1421 states and 4172 transitions. [2022-03-03 18:38:08,111 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) [2022-03-03 18:38:08,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 4172 transitions. [2022-03-03 18:38:08,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:08,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:08,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:08,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-03 18:38:08,113 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:08,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:08,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1658164539, now seen corresponding path program 150 times [2022-03-03 18:38:08,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:08,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112402056] [2022-03-03 18:38:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:08,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:08,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:08,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:08,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112402056] [2022-03-03 18:38:08,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112402056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:08,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:08,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:08,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156073107] [2022-03-03 18:38:08,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:08,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:08,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:08,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:08,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:08,183 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) [2022-03-03 18:38:08,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:08,423 INFO L93 Difference]: Finished difference Result 1587 states and 4608 transitions. [2022-03-03 18:38:08,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:08,424 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:08,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:08,426 INFO L225 Difference]: With dead ends: 1587 [2022-03-03 18:38:08,426 INFO L226 Difference]: Without dead ends: 1483 [2022-03-03 18:38:08,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:08,427 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 [2022-03-03 18:38:08,427 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] [2022-03-03 18:38:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2022-03-03 18:38:08,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1422. [2022-03-03 18:38:08,440 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) [2022-03-03 18:38:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4173 transitions. [2022-03-03 18:38:08,442 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4173 transitions. Word has length 26 [2022-03-03 18:38:08,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:08,442 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4173 transitions. [2022-03-03 18:38:08,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:08,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4173 transitions. [2022-03-03 18:38:08,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:08,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:08,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:08,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-03 18:38:08,444 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:08,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:08,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2025536923, now seen corresponding path program 151 times [2022-03-03 18:38:08,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:08,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48084287] [2022-03-03 18:38:08,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:08,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:08,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:08,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:08,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48084287] [2022-03-03 18:38:08,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48084287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:08,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:08,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:08,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453877273] [2022-03-03 18:38:08,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:08,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:08,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:08,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:08,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:08,516 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) [2022-03-03 18:38:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:08,741 INFO L93 Difference]: Finished difference Result 1574 states and 4561 transitions. [2022-03-03 18:38:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:08,741 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 [2022-03-03 18:38:08,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:08,744 INFO L225 Difference]: With dead ends: 1574 [2022-03-03 18:38:08,744 INFO L226 Difference]: Without dead ends: 1495 [2022-03-03 18:38:08,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:08,744 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 [2022-03-03 18:38:08,744 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] [2022-03-03 18:38:08,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2022-03-03 18:38:08,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1423. [2022-03-03 18:38:08,758 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) [2022-03-03 18:38:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 4177 transitions. [2022-03-03 18:38:08,760 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 4177 transitions. Word has length 26 [2022-03-03 18:38:08,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:08,760 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 4177 transitions. [2022-03-03 18:38:08,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 4177 transitions. [2022-03-03 18:38:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:08,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:08,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:08,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-03 18:38:08,762 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash -289747167, now seen corresponding path program 152 times [2022-03-03 18:38:08,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:08,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413047570] [2022-03-03 18:38:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:08,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:08,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:08,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413047570] [2022-03-03 18:38:08,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413047570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:08,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:08,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:08,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752319601] [2022-03-03 18:38:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:08,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:08,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:08,830 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) [2022-03-03 18:38:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:09,060 INFO L93 Difference]: Finished difference Result 1563 states and 4535 transitions. [2022-03-03 18:38:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:09,063 INFO L225 Difference]: With dead ends: 1563 [2022-03-03 18:38:09,063 INFO L226 Difference]: Without dead ends: 1480 [2022-03-03 18:38:09,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:09,063 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 [2022-03-03 18:38:09,063 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] [2022-03-03 18:38:09,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-03-03 18:38:09,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1424. [2022-03-03 18:38:09,076 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) [2022-03-03 18:38:09,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 4179 transitions. [2022-03-03 18:38:09,079 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 4179 transitions. Word has length 26 [2022-03-03 18:38:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:09,079 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 4179 transitions. [2022-03-03 18:38:09,079 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) [2022-03-03 18:38:09,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 4179 transitions. [2022-03-03 18:38:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:09,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:09,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:09,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-03 18:38:09,081 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:09,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:09,081 INFO L85 PathProgramCache]: Analyzing trace with hash 355673635, now seen corresponding path program 153 times [2022-03-03 18:38:09,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:09,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642080685] [2022-03-03 18:38:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:09,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:09,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:09,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642080685] [2022-03-03 18:38:09,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642080685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:09,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:09,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:09,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891219132] [2022-03-03 18:38:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:09,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:09,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:09,153 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) [2022-03-03 18:38:09,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:09,392 INFO L93 Difference]: Finished difference Result 1627 states and 4733 transitions. [2022-03-03 18:38:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:09,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:09,395 INFO L225 Difference]: With dead ends: 1627 [2022-03-03 18:38:09,395 INFO L226 Difference]: Without dead ends: 1530 [2022-03-03 18:38:09,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:09,395 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 [2022-03-03 18:38:09,395 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] [2022-03-03 18:38:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-03-03 18:38:09,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1431. [2022-03-03 18:38:09,411 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) [2022-03-03 18:38:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 4203 transitions. [2022-03-03 18:38:09,414 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 4203 transitions. Word has length 26 [2022-03-03 18:38:09,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:09,414 INFO L470 AbstractCegarLoop]: Abstraction has 1431 states and 4203 transitions. [2022-03-03 18:38:09,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 4203 transitions. [2022-03-03 18:38:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:09,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:09,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:09,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-03 18:38:09,416 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:09,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:09,416 INFO L85 PathProgramCache]: Analyzing trace with hash 443610369, now seen corresponding path program 154 times [2022-03-03 18:38:09,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:09,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344382380] [2022-03-03 18:38:09,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:09,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:09,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:09,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344382380] [2022-03-03 18:38:09,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344382380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:09,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:09,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:09,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668170855] [2022-03-03 18:38:09,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:09,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:09,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:09,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:09,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:09,501 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) [2022-03-03 18:38:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:09,730 INFO L93 Difference]: Finished difference Result 1607 states and 4663 transitions. [2022-03-03 18:38:09,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:09,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:09,732 INFO L225 Difference]: With dead ends: 1607 [2022-03-03 18:38:09,733 INFO L226 Difference]: Without dead ends: 1519 [2022-03-03 18:38:09,733 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 [2022-03-03 18:38:09,733 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 [2022-03-03 18:38:09,733 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] [2022-03-03 18:38:09,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-03-03 18:38:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1430. [2022-03-03 18:38:09,747 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) [2022-03-03 18:38:09,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 4203 transitions. [2022-03-03 18:38:09,749 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 4203 transitions. Word has length 26 [2022-03-03 18:38:09,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:09,749 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 4203 transitions. [2022-03-03 18:38:09,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:09,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 4203 transitions. [2022-03-03 18:38:09,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:09,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:09,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:09,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-03 18:38:09,751 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:09,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash -757012227, now seen corresponding path program 155 times [2022-03-03 18:38:09,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:09,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94533498] [2022-03-03 18:38:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:09,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:09,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:09,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94533498] [2022-03-03 18:38:09,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94533498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:09,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:09,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:09,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338805794] [2022-03-03 18:38:09,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:09,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:09,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:09,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:09,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:09,818 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) [2022-03-03 18:38:10,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:10,040 INFO L93 Difference]: Finished difference Result 1567 states and 4558 transitions. [2022-03-03 18:38:10,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:10,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:10,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:10,043 INFO L225 Difference]: With dead ends: 1567 [2022-03-03 18:38:10,043 INFO L226 Difference]: Without dead ends: 1488 [2022-03-03 18:38:10,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:10,044 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 [2022-03-03 18:38:10,044 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] [2022-03-03 18:38:10,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-03-03 18:38:10,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1429. [2022-03-03 18:38:10,057 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) [2022-03-03 18:38:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 4199 transitions. [2022-03-03 18:38:10,060 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 4199 transitions. Word has length 26 [2022-03-03 18:38:10,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:10,060 INFO L470 AbstractCegarLoop]: Abstraction has 1429 states and 4199 transitions. [2022-03-03 18:38:10,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 4199 transitions. [2022-03-03 18:38:10,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:10,061 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:10,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:10,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-03 18:38:10,062 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:10,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1222670979, now seen corresponding path program 156 times [2022-03-03 18:38:10,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:10,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978543807] [2022-03-03 18:38:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:10,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:10,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978543807] [2022-03-03 18:38:10,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978543807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:10,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:10,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:10,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138599501] [2022-03-03 18:38:10,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:10,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:10,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:10,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:10,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:10,135 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) [2022-03-03 18:38:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:10,362 INFO L93 Difference]: Finished difference Result 1572 states and 4563 transitions. [2022-03-03 18:38:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:10,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:10,364 INFO L225 Difference]: With dead ends: 1572 [2022-03-03 18:38:10,364 INFO L226 Difference]: Without dead ends: 1489 [2022-03-03 18:38:10,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:10,365 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 [2022-03-03 18:38:10,365 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] [2022-03-03 18:38:10,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-03-03 18:38:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1430. [2022-03-03 18:38:10,379 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) [2022-03-03 18:38:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 4200 transitions. [2022-03-03 18:38:10,381 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 4200 transitions. Word has length 26 [2022-03-03 18:38:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:10,381 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 4200 transitions. [2022-03-03 18:38:10,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 4200 transitions. [2022-03-03 18:38:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:10,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:10,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:10,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-03 18:38:10,383 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:10,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2145810523, now seen corresponding path program 157 times [2022-03-03 18:38:10,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:10,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283215889] [2022-03-03 18:38:10,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:10,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:10,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:10,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283215889] [2022-03-03 18:38:10,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283215889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:10,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:10,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:10,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109977913] [2022-03-03 18:38:10,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:10,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:10,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:10,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:10,450 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) [2022-03-03 18:38:10,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:10,669 INFO L93 Difference]: Finished difference Result 1645 states and 4769 transitions. [2022-03-03 18:38:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:10,669 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 [2022-03-03 18:38:10,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:10,672 INFO L225 Difference]: With dead ends: 1645 [2022-03-03 18:38:10,672 INFO L226 Difference]: Without dead ends: 1554 [2022-03-03 18:38:10,672 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 [2022-03-03 18:38:10,672 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 [2022-03-03 18:38:10,672 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] [2022-03-03 18:38:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-03-03 18:38:10,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1426. [2022-03-03 18:38:10,686 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) [2022-03-03 18:38:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4186 transitions. [2022-03-03 18:38:10,688 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4186 transitions. Word has length 26 [2022-03-03 18:38:10,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:10,688 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4186 transitions. [2022-03-03 18:38:10,688 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) [2022-03-03 18:38:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4186 transitions. [2022-03-03 18:38:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:10,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:10,690 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] [2022-03-03 18:38:10,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-03 18:38:10,690 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:10,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:10,690 INFO L85 PathProgramCache]: Analyzing trace with hash -26396157, now seen corresponding path program 158 times [2022-03-03 18:38:10,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:10,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760167110] [2022-03-03 18:38:10,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:10,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:10,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760167110] [2022-03-03 18:38:10,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760167110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:10,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:10,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:10,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407725042] [2022-03-03 18:38:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:10,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:10,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:10,755 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) [2022-03-03 18:38:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:10,993 INFO L93 Difference]: Finished difference Result 1595 states and 4605 transitions. [2022-03-03 18:38:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:10,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:10,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:10,996 INFO L225 Difference]: With dead ends: 1595 [2022-03-03 18:38:10,996 INFO L226 Difference]: Without dead ends: 1496 [2022-03-03 18:38:10,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:10,997 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 [2022-03-03 18:38:10,997 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] [2022-03-03 18:38:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-03 18:38:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1431. [2022-03-03 18:38:11,017 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) [2022-03-03 18:38:11,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 4196 transitions. [2022-03-03 18:38:11,019 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 4196 transitions. Word has length 26 [2022-03-03 18:38:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:11,019 INFO L470 AbstractCegarLoop]: Abstraction has 1431 states and 4196 transitions. [2022-03-03 18:38:11,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 4196 transitions. [2022-03-03 18:38:11,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:11,021 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:11,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:11,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-03 18:38:11,021 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:11,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:11,022 INFO L85 PathProgramCache]: Analyzing trace with hash -707649403, now seen corresponding path program 159 times [2022-03-03 18:38:11,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:11,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544185686] [2022-03-03 18:38:11,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:11,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:11,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:11,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:11,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544185686] [2022-03-03 18:38:11,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544185686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:11,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:11,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:11,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208375227] [2022-03-03 18:38:11,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:11,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:11,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:11,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:11,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:11,090 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) [2022-03-03 18:38:11,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:11,330 INFO L93 Difference]: Finished difference Result 1626 states and 4726 transitions. [2022-03-03 18:38:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:11,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:11,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:11,332 INFO L225 Difference]: With dead ends: 1626 [2022-03-03 18:38:11,333 INFO L226 Difference]: Without dead ends: 1529 [2022-03-03 18:38:11,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:11,333 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:11,333 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] [2022-03-03 18:38:11,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-03-03 18:38:11,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1429. [2022-03-03 18:38:11,346 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) [2022-03-03 18:38:11,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 4188 transitions. [2022-03-03 18:38:11,348 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 4188 transitions. Word has length 26 [2022-03-03 18:38:11,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:11,349 INFO L470 AbstractCegarLoop]: Abstraction has 1429 states and 4188 transitions. [2022-03-03 18:38:11,349 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) [2022-03-03 18:38:11,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 4188 transitions. [2022-03-03 18:38:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:11,350 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:11,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:11,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-03 18:38:11,350 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:11,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash -619712669, now seen corresponding path program 160 times [2022-03-03 18:38:11,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:11,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331044520] [2022-03-03 18:38:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:11,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:11,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:11,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331044520] [2022-03-03 18:38:11,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331044520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:11,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:11,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:11,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162491873] [2022-03-03 18:38:11,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:11,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:11,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:11,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:11,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:11,416 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) [2022-03-03 18:38:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:11,649 INFO L93 Difference]: Finished difference Result 1603 states and 4654 transitions. [2022-03-03 18:38:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:11,649 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:11,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:11,652 INFO L225 Difference]: With dead ends: 1603 [2022-03-03 18:38:11,652 INFO L226 Difference]: Without dead ends: 1517 [2022-03-03 18:38:11,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:11,653 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 [2022-03-03 18:38:11,653 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] [2022-03-03 18:38:11,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-03-03 18:38:11,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1437. [2022-03-03 18:38:11,667 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) [2022-03-03 18:38:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 4211 transitions. [2022-03-03 18:38:11,669 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 4211 transitions. Word has length 26 [2022-03-03 18:38:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:11,670 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 4211 transitions. [2022-03-03 18:38:11,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:11,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 4211 transitions. [2022-03-03 18:38:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:11,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:11,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:11,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-03 18:38:11,671 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:11,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash -709472319, now seen corresponding path program 161 times [2022-03-03 18:38:11,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:11,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371283333] [2022-03-03 18:38:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:11,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:11,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:11,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371283333] [2022-03-03 18:38:11,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371283333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:11,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:11,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:11,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072904803] [2022-03-03 18:38:11,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:11,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:11,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:11,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:11,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:11,737 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) [2022-03-03 18:38:11,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:11,965 INFO L93 Difference]: Finished difference Result 1577 states and 4563 transitions. [2022-03-03 18:38:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:11,968 INFO L225 Difference]: With dead ends: 1577 [2022-03-03 18:38:11,968 INFO L226 Difference]: Without dead ends: 1482 [2022-03-03 18:38:11,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:11,968 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 [2022-03-03 18:38:11,968 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] [2022-03-03 18:38:11,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-03-03 18:38:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1420. [2022-03-03 18:38:11,983 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) [2022-03-03 18:38:11,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 4166 transitions. [2022-03-03 18:38:11,986 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 4166 transitions. Word has length 26 [2022-03-03 18:38:11,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:11,986 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 4166 transitions. [2022-03-03 18:38:11,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:11,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 4166 transitions. [2022-03-03 18:38:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:11,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:11,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:11,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-03 18:38:11,988 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:11,988 INFO L85 PathProgramCache]: Analyzing trace with hash -107433999, now seen corresponding path program 162 times [2022-03-03 18:38:11,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:11,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428905306] [2022-03-03 18:38:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:11,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428905306] [2022-03-03 18:38:12,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428905306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:12,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272772421] [2022-03-03 18:38:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:12,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:12,049 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) [2022-03-03 18:38:12,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,225 INFO L93 Difference]: Finished difference Result 1724 states and 5023 transitions. [2022-03-03 18:38:12,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:12,225 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 [2022-03-03 18:38:12,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,228 INFO L225 Difference]: With dead ends: 1724 [2022-03-03 18:38:12,228 INFO L226 Difference]: Without dead ends: 1639 [2022-03-03 18:38:12,228 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 [2022-03-03 18:38:12,229 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 [2022-03-03 18:38:12,229 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] [2022-03-03 18:38:12,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-03-03 18:38:12,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1456. [2022-03-03 18:38:12,244 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) [2022-03-03 18:38:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4275 transitions. [2022-03-03 18:38:12,246 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4275 transitions. Word has length 26 [2022-03-03 18:38:12,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,246 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 4275 transitions. [2022-03-03 18:38:12,246 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) [2022-03-03 18:38:12,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4275 transitions. [2022-03-03 18:38:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:12,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,248 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] [2022-03-03 18:38:12,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-03 18:38:12,248 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1872249207, now seen corresponding path program 163 times [2022-03-03 18:38:12,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399749855] [2022-03-03 18:38:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399749855] [2022-03-03 18:38:12,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399749855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:12,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124017993] [2022-03-03 18:38:12,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:12,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:12,324 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) [2022-03-03 18:38:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,545 INFO L93 Difference]: Finished difference Result 1767 states and 5149 transitions. [2022-03-03 18:38:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:12,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,548 INFO L225 Difference]: With dead ends: 1767 [2022-03-03 18:38:12,549 INFO L226 Difference]: Without dead ends: 1619 [2022-03-03 18:38:12,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:12,549 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 [2022-03-03 18:38:12,549 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] [2022-03-03 18:38:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-03-03 18:38:12,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1417. [2022-03-03 18:38:12,564 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) [2022-03-03 18:38:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 4162 transitions. [2022-03-03 18:38:12,567 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 4162 transitions. Word has length 26 [2022-03-03 18:38:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,567 INFO L470 AbstractCegarLoop]: Abstraction has 1417 states and 4162 transitions. [2022-03-03 18:38:12,567 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) [2022-03-03 18:38:12,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 4162 transitions. [2022-03-03 18:38:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:12,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,569 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] [2022-03-03 18:38:12,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-03 18:38:12,569 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:12,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1817790317, now seen corresponding path program 164 times [2022-03-03 18:38:12,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894072355] [2022-03-03 18:38:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894072355] [2022-03-03 18:38:12,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894072355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:12,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508773857] [2022-03-03 18:38:12,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:12,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:12,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:12,641 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) [2022-03-03 18:38:12,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,860 INFO L93 Difference]: Finished difference Result 1698 states and 4940 transitions. [2022-03-03 18:38:12,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:12,860 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 [2022-03-03 18:38:12,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,863 INFO L225 Difference]: With dead ends: 1698 [2022-03-03 18:38:12,863 INFO L226 Difference]: Without dead ends: 1613 [2022-03-03 18:38:12,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:12,863 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 51 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:12,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 257 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-03-03 18:38:12,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1419. [2022-03-03 18:38:12,878 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) [2022-03-03 18:38:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4167 transitions. [2022-03-03 18:38:12,880 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4167 transitions. Word has length 26 [2022-03-03 18:38:12,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,880 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 4167 transitions. [2022-03-03 18:38:12,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:12,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4167 transitions. [2022-03-03 18:38:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:12,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:12,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-03 18:38:12,882 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,882 INFO L85 PathProgramCache]: Analyzing trace with hash 161892889, now seen corresponding path program 165 times [2022-03-03 18:38:12,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067136979] [2022-03-03 18:38:12,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067136979] [2022-03-03 18:38:12,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067136979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:12,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769324254] [2022-03-03 18:38:12,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:12,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:12,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:12,955 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) [2022-03-03 18:38:13,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:13,184 INFO L93 Difference]: Finished difference Result 1732 states and 5057 transitions. [2022-03-03 18:38:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:13,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:13,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:13,187 INFO L225 Difference]: With dead ends: 1732 [2022-03-03 18:38:13,187 INFO L226 Difference]: Without dead ends: 1649 [2022-03-03 18:38:13,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:13,188 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 [2022-03-03 18:38:13,188 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] [2022-03-03 18:38:13,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-03-03 18:38:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1438. [2022-03-03 18:38:13,202 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) [2022-03-03 18:38:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4228 transitions. [2022-03-03 18:38:13,204 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4228 transitions. Word has length 26 [2022-03-03 18:38:13,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:13,204 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4228 transitions. [2022-03-03 18:38:13,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4228 transitions. [2022-03-03 18:38:13,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:13,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:13,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:13,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-03 18:38:13,206 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:13,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:13,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1087174247, now seen corresponding path program 166 times [2022-03-03 18:38:13,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:13,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783737468] [2022-03-03 18:38:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:13,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:13,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:13,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783737468] [2022-03-03 18:38:13,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783737468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:13,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:13,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:13,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231626734] [2022-03-03 18:38:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:13,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:13,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:13,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:13,273 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) [2022-03-03 18:38:13,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:13,501 INFO L93 Difference]: Finished difference Result 1748 states and 5073 transitions. [2022-03-03 18:38:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:13,501 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:13,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:13,504 INFO L225 Difference]: With dead ends: 1748 [2022-03-03 18:38:13,505 INFO L226 Difference]: Without dead ends: 1639 [2022-03-03 18:38:13,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:13,505 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 [2022-03-03 18:38:13,505 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] [2022-03-03 18:38:13,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-03-03 18:38:13,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1406. [2022-03-03 18:38:13,523 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) [2022-03-03 18:38:13,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4130 transitions. [2022-03-03 18:38:13,525 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4130 transitions. Word has length 26 [2022-03-03 18:38:13,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:13,526 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4130 transitions. [2022-03-03 18:38:13,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:13,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4130 transitions. [2022-03-03 18:38:13,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:13,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:13,528 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] [2022-03-03 18:38:13,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-03 18:38:13,528 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:13,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1773870385, now seen corresponding path program 167 times [2022-03-03 18:38:13,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:13,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619840535] [2022-03-03 18:38:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:13,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:13,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619840535] [2022-03-03 18:38:13,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619840535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:13,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:13,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 18:38:13,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977237637] [2022-03-03 18:38:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:13,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:38:13,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:13,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:38:13,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:38:13,580 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) [2022-03-03 18:38:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:13,720 INFO L93 Difference]: Finished difference Result 1712 states and 4985 transitions. [2022-03-03 18:38:13,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:38:13,720 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 [2022-03-03 18:38:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:13,723 INFO L225 Difference]: With dead ends: 1712 [2022-03-03 18:38:13,723 INFO L226 Difference]: Without dead ends: 1615 [2022-03-03 18:38:13,723 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 [2022-03-03 18:38:13,723 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 [2022-03-03 18:38:13,723 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] [2022-03-03 18:38:13,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-03-03 18:38:13,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1488. [2022-03-03 18:38:13,746 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) [2022-03-03 18:38:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 4366 transitions. [2022-03-03 18:38:13,748 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 4366 transitions. Word has length 26 [2022-03-03 18:38:13,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:13,748 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 4366 transitions. [2022-03-03 18:38:13,748 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) [2022-03-03 18:38:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 4366 transitions. [2022-03-03 18:38:13,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:13,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:13,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:13,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-03 18:38:13,750 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:13,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash -162430541, now seen corresponding path program 168 times [2022-03-03 18:38:13,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:13,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905660166] [2022-03-03 18:38:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:13,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:13,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:13,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905660166] [2022-03-03 18:38:13,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905660166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:13,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:13,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:13,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757307650] [2022-03-03 18:38:13,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:13,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:13,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:13,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:13,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:13,805 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) [2022-03-03 18:38:13,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:13,988 INFO L93 Difference]: Finished difference Result 1769 states and 5133 transitions. [2022-03-03 18:38:13,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:13,988 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 [2022-03-03 18:38:13,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:13,991 INFO L225 Difference]: With dead ends: 1769 [2022-03-03 18:38:13,991 INFO L226 Difference]: Without dead ends: 1570 [2022-03-03 18:38:13,991 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 [2022-03-03 18:38:13,991 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:13,991 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] [2022-03-03 18:38:13,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-03-03 18:38:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1462. [2022-03-03 18:38:14,006 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) [2022-03-03 18:38:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 4276 transitions. [2022-03-03 18:38:14,008 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 4276 transitions. Word has length 26 [2022-03-03 18:38:14,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:14,008 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 4276 transitions. [2022-03-03 18:38:14,008 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) [2022-03-03 18:38:14,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 4276 transitions. [2022-03-03 18:38:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:14,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:14,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:14,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-03 18:38:14,010 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash 56129615, now seen corresponding path program 169 times [2022-03-03 18:38:14,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:14,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781191042] [2022-03-03 18:38:14,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:14,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:14,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:14,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781191042] [2022-03-03 18:38:14,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781191042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:14,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:14,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:14,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689154594] [2022-03-03 18:38:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:14,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:14,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:14,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:14,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:14,067 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) [2022-03-03 18:38:14,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:14,243 INFO L93 Difference]: Finished difference Result 1668 states and 4808 transitions. [2022-03-03 18:38:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:14,243 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 [2022-03-03 18:38:14,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:14,246 INFO L225 Difference]: With dead ends: 1668 [2022-03-03 18:38:14,246 INFO L226 Difference]: Without dead ends: 1571 [2022-03-03 18:38:14,246 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 [2022-03-03 18:38:14,247 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 [2022-03-03 18:38:14,247 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] [2022-03-03 18:38:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-03-03 18:38:14,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1452. [2022-03-03 18:38:14,261 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) [2022-03-03 18:38:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 4251 transitions. [2022-03-03 18:38:14,264 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 4251 transitions. Word has length 26 [2022-03-03 18:38:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:14,264 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 4251 transitions. [2022-03-03 18:38:14,264 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) [2022-03-03 18:38:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 4251 transitions. [2022-03-03 18:38:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:14,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:14,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:14,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-03 18:38:14,266 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:14,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1880171311, now seen corresponding path program 170 times [2022-03-03 18:38:14,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:14,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023735884] [2022-03-03 18:38:14,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:14,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:14,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:14,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:14,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023735884] [2022-03-03 18:38:14,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023735884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:14,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:14,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:14,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575729653] [2022-03-03 18:38:14,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:14,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:14,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:14,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:14,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:14,332 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) [2022-03-03 18:38:14,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:14,557 INFO L93 Difference]: Finished difference Result 1677 states and 4834 transitions. [2022-03-03 18:38:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:14,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:14,560 INFO L225 Difference]: With dead ends: 1677 [2022-03-03 18:38:14,560 INFO L226 Difference]: Without dead ends: 1550 [2022-03-03 18:38:14,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:14,560 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 [2022-03-03 18:38:14,561 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] [2022-03-03 18:38:14,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-03-03 18:38:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1470. [2022-03-03 18:38:14,574 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) [2022-03-03 18:38:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4287 transitions. [2022-03-03 18:38:14,576 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4287 transitions. Word has length 26 [2022-03-03 18:38:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:14,576 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4287 transitions. [2022-03-03 18:38:14,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4287 transitions. [2022-03-03 18:38:14,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:14,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:14,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:14,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-03 18:38:14,578 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash 466884279, now seen corresponding path program 171 times [2022-03-03 18:38:14,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:14,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394159129] [2022-03-03 18:38:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:14,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:14,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:14,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394159129] [2022-03-03 18:38:14,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394159129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:14,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:14,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:14,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814403187] [2022-03-03 18:38:14,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:14,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:14,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:14,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:14,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:14,655 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) [2022-03-03 18:38:14,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:14,825 INFO L93 Difference]: Finished difference Result 1737 states and 5007 transitions. [2022-03-03 18:38:14,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:14,825 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 [2022-03-03 18:38:14,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:14,828 INFO L225 Difference]: With dead ends: 1737 [2022-03-03 18:38:14,828 INFO L226 Difference]: Without dead ends: 1622 [2022-03-03 18:38:14,828 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 [2022-03-03 18:38:14,829 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 [2022-03-03 18:38:14,829 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] [2022-03-03 18:38:14,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-03-03 18:38:14,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1476. [2022-03-03 18:38:14,843 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) [2022-03-03 18:38:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 4296 transitions. [2022-03-03 18:38:14,845 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 4296 transitions. Word has length 26 [2022-03-03 18:38:14,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:14,846 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 4296 transitions. [2022-03-03 18:38:14,846 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) [2022-03-03 18:38:14,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 4296 transitions. [2022-03-03 18:38:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:14,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:14,847 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] [2022-03-03 18:38:14,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-03 18:38:14,848 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:14,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:14,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1112305081, now seen corresponding path program 172 times [2022-03-03 18:38:14,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:14,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618886601] [2022-03-03 18:38:14,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:14,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:14,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:14,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618886601] [2022-03-03 18:38:14,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618886601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:14,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:14,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:14,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281955299] [2022-03-03 18:38:14,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:14,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:14,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:14,912 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) [2022-03-03 18:38:15,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:15,143 INFO L93 Difference]: Finished difference Result 1779 states and 5100 transitions. [2022-03-03 18:38:15,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:15,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:15,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:15,153 INFO L225 Difference]: With dead ends: 1779 [2022-03-03 18:38:15,153 INFO L226 Difference]: Without dead ends: 1623 [2022-03-03 18:38:15,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:15,153 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 [2022-03-03 18:38:15,153 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] [2022-03-03 18:38:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-03-03 18:38:15,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1498. [2022-03-03 18:38:15,167 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) [2022-03-03 18:38:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 4362 transitions. [2022-03-03 18:38:15,170 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 4362 transitions. Word has length 26 [2022-03-03 18:38:15,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:15,170 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 4362 transitions. [2022-03-03 18:38:15,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 4362 transitions. [2022-03-03 18:38:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:15,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:15,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:15,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-03 18:38:15,172 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:15,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:15,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1200241815, now seen corresponding path program 173 times [2022-03-03 18:38:15,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:15,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636361826] [2022-03-03 18:38:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:15,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:15,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:15,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636361826] [2022-03-03 18:38:15,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636361826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:15,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:15,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:15,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694909658] [2022-03-03 18:38:15,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:15,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:15,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:15,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:15,239 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) [2022-03-03 18:38:15,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:15,448 INFO L93 Difference]: Finished difference Result 1823 states and 5246 transitions. [2022-03-03 18:38:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:15,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:15,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:15,451 INFO L225 Difference]: With dead ends: 1823 [2022-03-03 18:38:15,451 INFO L226 Difference]: Without dead ends: 1667 [2022-03-03 18:38:15,451 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 [2022-03-03 18:38:15,452 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 [2022-03-03 18:38:15,452 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] [2022-03-03 18:38:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2022-03-03 18:38:15,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1522. [2022-03-03 18:38:15,467 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) [2022-03-03 18:38:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 4433 transitions. [2022-03-03 18:38:15,469 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 4433 transitions. Word has length 26 [2022-03-03 18:38:15,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:15,469 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 4433 transitions. [2022-03-03 18:38:15,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 4433 transitions. [2022-03-03 18:38:15,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:15,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:15,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:15,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-03 18:38:15,471 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:15,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:15,472 INFO L85 PathProgramCache]: Analyzing trace with hash -562994771, now seen corresponding path program 174 times [2022-03-03 18:38:15,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:15,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559786814] [2022-03-03 18:38:15,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:15,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:15,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:15,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559786814] [2022-03-03 18:38:15,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559786814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:15,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:15,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:15,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954440339] [2022-03-03 18:38:15,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:15,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:15,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:15,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:15,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:15,527 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) [2022-03-03 18:38:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:15,710 INFO L93 Difference]: Finished difference Result 1900 states and 5461 transitions. [2022-03-03 18:38:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:15,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:15,713 INFO L225 Difference]: With dead ends: 1900 [2022-03-03 18:38:15,713 INFO L226 Difference]: Without dead ends: 1636 [2022-03-03 18:38:15,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:15,714 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:15,714 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] [2022-03-03 18:38:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-03-03 18:38:15,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1508. [2022-03-03 18:38:15,728 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) [2022-03-03 18:38:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 4358 transitions. [2022-03-03 18:38:15,730 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 4358 transitions. Word has length 26 [2022-03-03 18:38:15,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:15,731 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 4358 transitions. [2022-03-03 18:38:15,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 4358 transitions. [2022-03-03 18:38:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:15,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:15,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:15,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-03 18:38:15,732 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:15,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:15,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2142426417, now seen corresponding path program 175 times [2022-03-03 18:38:15,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:15,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378094513] [2022-03-03 18:38:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:15,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:15,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378094513] [2022-03-03 18:38:15,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378094513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:15,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:15,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:15,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597297484] [2022-03-03 18:38:15,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:15,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:15,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:15,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:15,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:15,795 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) [2022-03-03 18:38:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:16,026 INFO L93 Difference]: Finished difference Result 1766 states and 4965 transitions. [2022-03-03 18:38:16,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:16,026 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 [2022-03-03 18:38:16,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:16,029 INFO L225 Difference]: With dead ends: 1766 [2022-03-03 18:38:16,029 INFO L226 Difference]: Without dead ends: 1508 [2022-03-03 18:38:16,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:16,029 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 [2022-03-03 18:38:16,029 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] [2022-03-03 18:38:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-03-03 18:38:16,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1438. [2022-03-03 18:38:16,042 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) [2022-03-03 18:38:16,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4077 transitions. [2022-03-03 18:38:16,044 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4077 transitions. Word has length 26 [2022-03-03 18:38:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:16,044 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4077 transitions. [2022-03-03 18:38:16,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:16,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4077 transitions. [2022-03-03 18:38:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:16,046 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:16,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:16,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-03 18:38:16,046 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:16,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:16,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1223058625, now seen corresponding path program 176 times [2022-03-03 18:38:16,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:16,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133594100] [2022-03-03 18:38:16,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:16,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:16,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:16,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133594100] [2022-03-03 18:38:16,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133594100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:16,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:16,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:16,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691890388] [2022-03-03 18:38:16,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:16,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:16,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:16,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:16,125 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) [2022-03-03 18:38:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:16,345 INFO L93 Difference]: Finished difference Result 1656 states and 4633 transitions. [2022-03-03 18:38:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:16,345 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 [2022-03-03 18:38:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:16,347 INFO L225 Difference]: With dead ends: 1656 [2022-03-03 18:38:16,347 INFO L226 Difference]: Without dead ends: 1505 [2022-03-03 18:38:16,348 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 [2022-03-03 18:38:16,348 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 [2022-03-03 18:38:16,348 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] [2022-03-03 18:38:16,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2022-03-03 18:38:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1438. [2022-03-03 18:38:16,362 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) [2022-03-03 18:38:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4065 transitions. [2022-03-03 18:38:16,365 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4065 transitions. Word has length 26 [2022-03-03 18:38:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:16,365 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4065 transitions. [2022-03-03 18:38:16,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4065 transitions. [2022-03-03 18:38:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:16,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:16,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:16,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-03 18:38:16,367 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:16,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:16,367 INFO L85 PathProgramCache]: Analyzing trace with hash -577637823, now seen corresponding path program 177 times [2022-03-03 18:38:16,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:16,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461706613] [2022-03-03 18:38:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:16,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:16,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:16,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461706613] [2022-03-03 18:38:16,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461706613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:16,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:16,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:16,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896272577] [2022-03-03 18:38:16,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:16,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:16,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:16,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:16,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:16,444 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) [2022-03-03 18:38:16,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:16,684 INFO L93 Difference]: Finished difference Result 1661 states and 4643 transitions. [2022-03-03 18:38:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:16,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:16,687 INFO L225 Difference]: With dead ends: 1661 [2022-03-03 18:38:16,687 INFO L226 Difference]: Without dead ends: 1541 [2022-03-03 18:38:16,687 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 [2022-03-03 18:38:16,687 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 [2022-03-03 18:38:16,687 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] [2022-03-03 18:38:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-03-03 18:38:16,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1464. [2022-03-03 18:38:16,701 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) [2022-03-03 18:38:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4141 transitions. [2022-03-03 18:38:16,703 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4141 transitions. Word has length 26 [2022-03-03 18:38:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:16,703 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4141 transitions. [2022-03-03 18:38:16,703 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) [2022-03-03 18:38:16,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4141 transitions. [2022-03-03 18:38:16,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:16,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:16,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:16,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-03 18:38:16,705 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash -489701089, now seen corresponding path program 178 times [2022-03-03 18:38:16,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:16,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519043170] [2022-03-03 18:38:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:16,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:16,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:16,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519043170] [2022-03-03 18:38:16,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519043170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:16,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:16,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:16,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158025207] [2022-03-03 18:38:16,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:16,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:16,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:16,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:16,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:16,770 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) [2022-03-03 18:38:16,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:16,994 INFO L93 Difference]: Finished difference Result 1719 states and 4756 transitions. [2022-03-03 18:38:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:16,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:16,997 INFO L225 Difference]: With dead ends: 1719 [2022-03-03 18:38:16,997 INFO L226 Difference]: Without dead ends: 1599 [2022-03-03 18:38:16,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:16,997 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 [2022-03-03 18:38:16,997 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] [2022-03-03 18:38:16,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2022-03-03 18:38:17,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1456. [2022-03-03 18:38:17,011 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) [2022-03-03 18:38:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4120 transitions. [2022-03-03 18:38:17,014 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4120 transitions. Word has length 26 [2022-03-03 18:38:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:17,014 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 4120 transitions. [2022-03-03 18:38:17,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4120 transitions. [2022-03-03 18:38:17,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:17,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:17,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:17,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-03 18:38:17,015 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:17,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:17,016 INFO L85 PathProgramCache]: Analyzing trace with hash -335263571, now seen corresponding path program 179 times [2022-03-03 18:38:17,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:17,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746483680] [2022-03-03 18:38:17,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:17,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:17,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:17,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746483680] [2022-03-03 18:38:17,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746483680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:17,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:17,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:17,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895056592] [2022-03-03 18:38:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:17,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:17,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:17,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:17,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:17,079 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) [2022-03-03 18:38:17,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:17,317 INFO L93 Difference]: Finished difference Result 1748 states and 4846 transitions. [2022-03-03 18:38:17,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:17,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:17,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:17,320 INFO L225 Difference]: With dead ends: 1748 [2022-03-03 18:38:17,320 INFO L226 Difference]: Without dead ends: 1524 [2022-03-03 18:38:17,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:17,320 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 [2022-03-03 18:38:17,320 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] [2022-03-03 18:38:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-03-03 18:38:17,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1396. [2022-03-03 18:38:17,333 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) [2022-03-03 18:38:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3950 transitions. [2022-03-03 18:38:17,335 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3950 transitions. Word has length 26 [2022-03-03 18:38:17,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:17,336 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3950 transitions. [2022-03-03 18:38:17,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:17,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3950 transitions. [2022-03-03 18:38:17,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:17,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:17,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:17,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-03 18:38:17,337 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:17,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:17,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1201044141, now seen corresponding path program 180 times [2022-03-03 18:38:17,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:17,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291007400] [2022-03-03 18:38:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:17,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:17,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:17,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:17,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291007400] [2022-03-03 18:38:17,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291007400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:17,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:17,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:17,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492972774] [2022-03-03 18:38:17,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:17,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:17,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:17,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:17,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:17,396 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) [2022-03-03 18:38:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:17,570 INFO L93 Difference]: Finished difference Result 1674 states and 4682 transitions. [2022-03-03 18:38:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:17,570 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 [2022-03-03 18:38:17,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:17,573 INFO L225 Difference]: With dead ends: 1674 [2022-03-03 18:38:17,573 INFO L226 Difference]: Without dead ends: 1589 [2022-03-03 18:38:17,573 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 [2022-03-03 18:38:17,573 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 [2022-03-03 18:38:17,573 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] [2022-03-03 18:38:17,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-03-03 18:38:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1426. [2022-03-03 18:38:17,587 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) [2022-03-03 18:38:17,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4032 transitions. [2022-03-03 18:38:17,589 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4032 transitions. Word has length 26 [2022-03-03 18:38:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:17,590 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4032 transitions. [2022-03-03 18:38:17,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:17,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4032 transitions. [2022-03-03 18:38:17,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:17,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:17,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:17,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-03 18:38:17,592 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:17,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1157622229, now seen corresponding path program 181 times [2022-03-03 18:38:17,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:17,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342293133] [2022-03-03 18:38:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:17,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:17,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:17,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:17,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342293133] [2022-03-03 18:38:17,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342293133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:17,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:17,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:17,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603555605] [2022-03-03 18:38:17,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:17,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:17,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:17,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:17,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:17,657 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) [2022-03-03 18:38:17,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:17,881 INFO L93 Difference]: Finished difference Result 1703 states and 4751 transitions. [2022-03-03 18:38:17,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:17,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:17,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:17,884 INFO L225 Difference]: With dead ends: 1703 [2022-03-03 18:38:17,884 INFO L226 Difference]: Without dead ends: 1516 [2022-03-03 18:38:17,884 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 [2022-03-03 18:38:17,884 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 [2022-03-03 18:38:17,884 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] [2022-03-03 18:38:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-03-03 18:38:17,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1388. [2022-03-03 18:38:17,898 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) [2022-03-03 18:38:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 3911 transitions. [2022-03-03 18:38:17,900 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 3911 transitions. Word has length 26 [2022-03-03 18:38:17,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:17,900 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 3911 transitions. [2022-03-03 18:38:17,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:17,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 3911 transitions. [2022-03-03 18:38:17,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:17,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:17,902 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] [2022-03-03 18:38:17,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-03 18:38:17,906 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:17,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:17,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1376182385, now seen corresponding path program 182 times [2022-03-03 18:38:17,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:17,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039236281] [2022-03-03 18:38:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:17,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:17,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:17,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039236281] [2022-03-03 18:38:17,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039236281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:17,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:17,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:17,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987385371] [2022-03-03 18:38:17,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:17,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:17,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:17,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:17,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:17,979 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) [2022-03-03 18:38:18,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:18,194 INFO L93 Difference]: Finished difference Result 1583 states and 4394 transitions. [2022-03-03 18:38:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:18,194 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 [2022-03-03 18:38:18,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:18,197 INFO L225 Difference]: With dead ends: 1583 [2022-03-03 18:38:18,197 INFO L226 Difference]: Without dead ends: 1498 [2022-03-03 18:38:18,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:18,197 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 [2022-03-03 18:38:18,197 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] [2022-03-03 18:38:18,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-03-03 18:38:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1378. [2022-03-03 18:38:18,210 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) [2022-03-03 18:38:18,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 3890 transitions. [2022-03-03 18:38:18,212 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 3890 transitions. Word has length 26 [2022-03-03 18:38:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:18,212 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 3890 transitions. [2022-03-03 18:38:18,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 3890 transitions. [2022-03-03 18:38:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:18,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:18,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:18,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-03 18:38:18,214 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:18,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:18,214 INFO L85 PathProgramCache]: Analyzing trace with hash -560118541, now seen corresponding path program 183 times [2022-03-03 18:38:18,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:18,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947346917] [2022-03-03 18:38:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:18,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:18,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:18,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:18,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947346917] [2022-03-03 18:38:18,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947346917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:18,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:18,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:18,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888200410] [2022-03-03 18:38:18,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:18,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:18,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:18,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:18,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:18,290 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) [2022-03-03 18:38:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:18,524 INFO L93 Difference]: Finished difference Result 1537 states and 4286 transitions. [2022-03-03 18:38:18,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:18,524 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:18,526 INFO L225 Difference]: With dead ends: 1537 [2022-03-03 18:38:18,526 INFO L226 Difference]: Without dead ends: 1442 [2022-03-03 18:38:18,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:18,527 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 [2022-03-03 18:38:18,527 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] [2022-03-03 18:38:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-03-03 18:38:18,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1390. [2022-03-03 18:38:18,540 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) [2022-03-03 18:38:18,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 3916 transitions. [2022-03-03 18:38:18,542 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 3916 transitions. Word has length 26 [2022-03-03 18:38:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:18,542 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 3916 transitions. [2022-03-03 18:38:18,542 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) [2022-03-03 18:38:18,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 3916 transitions. [2022-03-03 18:38:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:18,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:18,544 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] [2022-03-03 18:38:18,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-03 18:38:18,544 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:18,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:18,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1786937049, now seen corresponding path program 184 times [2022-03-03 18:38:18,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:18,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15820531] [2022-03-03 18:38:18,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:18,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:18,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:18,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:18,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15820531] [2022-03-03 18:38:18,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15820531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:18,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:18,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:18,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037615082] [2022-03-03 18:38:18,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:18,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:18,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:18,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:18,602 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) [2022-03-03 18:38:18,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:18,782 INFO L93 Difference]: Finished difference Result 1645 states and 4600 transitions. [2022-03-03 18:38:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:18,782 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 [2022-03-03 18:38:18,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:18,785 INFO L225 Difference]: With dead ends: 1645 [2022-03-03 18:38:18,785 INFO L226 Difference]: Without dead ends: 1562 [2022-03-03 18:38:18,785 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 [2022-03-03 18:38:18,786 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 [2022-03-03 18:38:18,786 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] [2022-03-03 18:38:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-03-03 18:38:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1396. [2022-03-03 18:38:18,800 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) [2022-03-03 18:38:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3925 transitions. [2022-03-03 18:38:18,802 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3925 transitions. Word has length 26 [2022-03-03 18:38:18,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:18,802 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3925 transitions. [2022-03-03 18:38:18,802 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) [2022-03-03 18:38:18,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3925 transitions. [2022-03-03 18:38:18,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:18,804 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:18,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:18,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-03 18:38:18,804 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:18,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1862609445, now seen corresponding path program 185 times [2022-03-03 18:38:18,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:18,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455236271] [2022-03-03 18:38:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:18,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:18,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:18,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455236271] [2022-03-03 18:38:18,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455236271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:18,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:18,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:18,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598715761] [2022-03-03 18:38:18,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:18,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:18,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:18,870 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) [2022-03-03 18:38:19,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:19,107 INFO L93 Difference]: Finished difference Result 1543 states and 4300 transitions. [2022-03-03 18:38:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:19,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:19,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:19,109 INFO L225 Difference]: With dead ends: 1543 [2022-03-03 18:38:19,109 INFO L226 Difference]: Without dead ends: 1455 [2022-03-03 18:38:19,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:19,110 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 [2022-03-03 18:38:19,110 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] [2022-03-03 18:38:19,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-03 18:38:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1392. [2022-03-03 18:38:19,124 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) [2022-03-03 18:38:19,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 3919 transitions. [2022-03-03 18:38:19,127 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 3919 transitions. Word has length 26 [2022-03-03 18:38:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:19,127 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 3919 transitions. [2022-03-03 18:38:19,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 3919 transitions. [2022-03-03 18:38:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:19,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:19,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:19,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-03 18:38:19,129 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:19,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:19,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1774672711, now seen corresponding path program 186 times [2022-03-03 18:38:19,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:19,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149619121] [2022-03-03 18:38:19,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:19,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:19,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:19,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149619121] [2022-03-03 18:38:19,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149619121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:19,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:19,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:19,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579435511] [2022-03-03 18:38:19,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:19,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:19,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:19,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:19,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:19,194 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) [2022-03-03 18:38:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:19,406 INFO L93 Difference]: Finished difference Result 1684 states and 4690 transitions. [2022-03-03 18:38:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:19,407 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 [2022-03-03 18:38:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:19,409 INFO L225 Difference]: With dead ends: 1684 [2022-03-03 18:38:19,409 INFO L226 Difference]: Without dead ends: 1596 [2022-03-03 18:38:19,410 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 [2022-03-03 18:38:19,410 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 [2022-03-03 18:38:19,410 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] [2022-03-03 18:38:19,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2022-03-03 18:38:19,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1416. [2022-03-03 18:38:19,430 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) [2022-03-03 18:38:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 3990 transitions. [2022-03-03 18:38:19,432 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 3990 transitions. Word has length 26 [2022-03-03 18:38:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:19,432 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 3990 transitions. [2022-03-03 18:38:19,432 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) [2022-03-03 18:38:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 3990 transitions. [2022-03-03 18:38:19,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:19,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:19,434 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] [2022-03-03 18:38:19,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-03 18:38:19,434 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:19,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:19,434 INFO L85 PathProgramCache]: Analyzing trace with hash 757057999, now seen corresponding path program 187 times [2022-03-03 18:38:19,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:19,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39798164] [2022-03-03 18:38:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:19,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:19,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:19,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39798164] [2022-03-03 18:38:19,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39798164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:19,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:19,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:19,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763773877] [2022-03-03 18:38:19,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:19,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:19,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:19,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:19,518 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) [2022-03-03 18:38:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:19,715 INFO L93 Difference]: Finished difference Result 1704 states and 4749 transitions. [2022-03-03 18:38:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:19,715 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 [2022-03-03 18:38:19,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:19,718 INFO L225 Difference]: With dead ends: 1704 [2022-03-03 18:38:19,718 INFO L226 Difference]: Without dead ends: 1544 [2022-03-03 18:38:19,718 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 [2022-03-03 18:38:19,721 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 [2022-03-03 18:38:19,721 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] [2022-03-03 18:38:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-03-03 18:38:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1404. [2022-03-03 18:38:19,734 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) [2022-03-03 18:38:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 3956 transitions. [2022-03-03 18:38:19,736 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 3956 transitions. Word has length 26 [2022-03-03 18:38:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:19,736 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 3956 transitions. [2022-03-03 18:38:19,736 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) [2022-03-03 18:38:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 3956 transitions. [2022-03-03 18:38:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:19,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:19,738 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] [2022-03-03 18:38:19,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-03 18:38:19,738 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:19,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:19,738 INFO L85 PathProgramCache]: Analyzing trace with hash -822373647, now seen corresponding path program 188 times [2022-03-03 18:38:19,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:19,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230580376] [2022-03-03 18:38:19,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:19,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:19,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:19,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230580376] [2022-03-03 18:38:19,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230580376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:19,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:19,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:19,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511028377] [2022-03-03 18:38:19,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:19,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:19,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:19,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:19,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:19,809 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) [2022-03-03 18:38:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:20,045 INFO L93 Difference]: Finished difference Result 1611 states and 4453 transitions. [2022-03-03 18:38:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:20,045 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:20,048 INFO L225 Difference]: With dead ends: 1611 [2022-03-03 18:38:20,048 INFO L226 Difference]: Without dead ends: 1492 [2022-03-03 18:38:20,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:20,048 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 [2022-03-03 18:38:20,048 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] [2022-03-03 18:38:20,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-03-03 18:38:20,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1394. [2022-03-03 18:38:20,060 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) [2022-03-03 18:38:20,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 3934 transitions. [2022-03-03 18:38:20,062 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 3934 transitions. Word has length 26 [2022-03-03 18:38:20,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:20,062 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 3934 transitions. [2022-03-03 18:38:20,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:20,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 3934 transitions. [2022-03-03 18:38:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:20,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:20,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:20,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-03 18:38:20,064 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:20,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1651145999, now seen corresponding path program 189 times [2022-03-03 18:38:20,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:20,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052832057] [2022-03-03 18:38:20,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:20,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:20,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:20,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052832057] [2022-03-03 18:38:20,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052832057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:20,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:20,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:20,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648009234] [2022-03-03 18:38:20,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:20,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:20,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:20,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:20,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:20,135 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) [2022-03-03 18:38:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:20,351 INFO L93 Difference]: Finished difference Result 1557 states and 4341 transitions. [2022-03-03 18:38:20,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:20,352 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:20,354 INFO L225 Difference]: With dead ends: 1557 [2022-03-03 18:38:20,354 INFO L226 Difference]: Without dead ends: 1472 [2022-03-03 18:38:20,354 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 [2022-03-03 18:38:20,354 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 [2022-03-03 18:38:20,354 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] [2022-03-03 18:38:20,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-03-03 18:38:20,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1396. [2022-03-03 18:38:20,367 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) [2022-03-03 18:38:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3942 transitions. [2022-03-03 18:38:20,369 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3942 transitions. Word has length 26 [2022-03-03 18:38:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:20,369 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3942 transitions. [2022-03-03 18:38:20,369 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) [2022-03-03 18:38:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3942 transitions. [2022-03-03 18:38:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:20,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:20,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:20,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-03 18:38:20,372 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:20,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash -285154927, now seen corresponding path program 190 times [2022-03-03 18:38:20,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:20,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966013245] [2022-03-03 18:38:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:20,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:20,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:20,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966013245] [2022-03-03 18:38:20,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966013245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:20,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:20,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:20,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952240625] [2022-03-03 18:38:20,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:20,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:20,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:20,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:20,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:20,454 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) [2022-03-03 18:38:20,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:20,691 INFO L93 Difference]: Finished difference Result 1544 states and 4317 transitions. [2022-03-03 18:38:20,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:20,692 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 [2022-03-03 18:38:20,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:20,694 INFO L225 Difference]: With dead ends: 1544 [2022-03-03 18:38:20,694 INFO L226 Difference]: Without dead ends: 1449 [2022-03-03 18:38:20,694 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 [2022-03-03 18:38:20,695 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 [2022-03-03 18:38:20,695 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] [2022-03-03 18:38:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-03-03 18:38:20,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1400. [2022-03-03 18:38:20,709 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) [2022-03-03 18:38:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-03-03 18:38:20,711 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-03-03 18:38:20,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:20,711 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-03-03 18:38:20,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-03-03 18:38:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:20,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:20,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:20,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-03 18:38:20,713 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash 82217457, now seen corresponding path program 191 times [2022-03-03 18:38:20,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:20,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758568077] [2022-03-03 18:38:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:20,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:20,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:20,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758568077] [2022-03-03 18:38:20,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758568077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:20,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:20,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:20,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497152966] [2022-03-03 18:38:20,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:20,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:20,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:20,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:20,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:20,790 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) [2022-03-03 18:38:21,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:21,010 INFO L93 Difference]: Finished difference Result 1551 states and 4333 transitions. [2022-03-03 18:38:21,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:21,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:21,012 INFO L225 Difference]: With dead ends: 1551 [2022-03-03 18:38:21,012 INFO L226 Difference]: Without dead ends: 1466 [2022-03-03 18:38:21,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:21,013 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 [2022-03-03 18:38:21,013 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] [2022-03-03 18:38:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-03-03 18:38:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1398. [2022-03-03 18:38:21,026 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) [2022-03-03 18:38:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 3948 transitions. [2022-03-03 18:38:21,028 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 3948 transitions. Word has length 26 [2022-03-03 18:38:21,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:21,028 INFO L470 AbstractCegarLoop]: Abstraction has 1398 states and 3948 transitions. [2022-03-03 18:38:21,028 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) [2022-03-03 18:38:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 3948 transitions. [2022-03-03 18:38:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:21,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:21,030 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] [2022-03-03 18:38:21,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-03 18:38:21,030 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2061900663, now seen corresponding path program 192 times [2022-03-03 18:38:21,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:21,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775638148] [2022-03-03 18:38:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:21,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:21,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:21,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775638148] [2022-03-03 18:38:21,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775638148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:21,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:21,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:21,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390979862] [2022-03-03 18:38:21,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:21,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:21,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:21,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:21,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:21,104 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) [2022-03-03 18:38:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:21,327 INFO L93 Difference]: Finished difference Result 1561 states and 4348 transitions. [2022-03-03 18:38:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:21,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:21,329 INFO L225 Difference]: With dead ends: 1561 [2022-03-03 18:38:21,330 INFO L226 Difference]: Without dead ends: 1478 [2022-03-03 18:38:21,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:21,330 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 [2022-03-03 18:38:21,330 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] [2022-03-03 18:38:21,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-03-03 18:38:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1398. [2022-03-03 18:38:21,343 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) [2022-03-03 18:38:21,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 3946 transitions. [2022-03-03 18:38:21,345 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 3946 transitions. Word has length 26 [2022-03-03 18:38:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:21,345 INFO L470 AbstractCegarLoop]: Abstraction has 1398 states and 3946 transitions. [2022-03-03 18:38:21,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 3946 transitions. [2022-03-03 18:38:21,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:21,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:21,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:21,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-03 18:38:21,347 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:21,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1587645831, now seen corresponding path program 193 times [2022-03-03 18:38:21,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:21,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665973427] [2022-03-03 18:38:21,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:21,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:21,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:21,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665973427] [2022-03-03 18:38:21,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665973427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:21,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:21,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:21,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442993448] [2022-03-03 18:38:21,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:21,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:21,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:21,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:21,414 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) [2022-03-03 18:38:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:21,648 INFO L93 Difference]: Finished difference Result 1541 states and 4312 transitions. [2022-03-03 18:38:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:21,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:21,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:21,650 INFO L225 Difference]: With dead ends: 1541 [2022-03-03 18:38:21,650 INFO L226 Difference]: Without dead ends: 1453 [2022-03-03 18:38:21,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:21,651 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 [2022-03-03 18:38:21,651 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] [2022-03-03 18:38:21,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-03 18:38:21,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1399. [2022-03-03 18:38:21,663 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) [2022-03-03 18:38:21,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 3950 transitions. [2022-03-03 18:38:21,666 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 3950 transitions. Word has length 26 [2022-03-03 18:38:21,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:21,666 INFO L470 AbstractCegarLoop]: Abstraction has 1399 states and 3950 transitions. [2022-03-03 18:38:21,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:21,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 3950 transitions. [2022-03-03 18:38:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:21,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:21,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:21,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-03 18:38:21,667 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:21,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:21,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1499709097, now seen corresponding path program 194 times [2022-03-03 18:38:21,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:21,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947994256] [2022-03-03 18:38:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:21,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:21,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947994256] [2022-03-03 18:38:21,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947994256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:21,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:21,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:21,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176026513] [2022-03-03 18:38:21,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:21,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:21,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:21,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:21,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:21,734 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) [2022-03-03 18:38:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:21,955 INFO L93 Difference]: Finished difference Result 1549 states and 4315 transitions. [2022-03-03 18:38:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:21,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:21,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:21,958 INFO L225 Difference]: With dead ends: 1549 [2022-03-03 18:38:21,958 INFO L226 Difference]: Without dead ends: 1461 [2022-03-03 18:38:21,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:21,958 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 [2022-03-03 18:38:21,958 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] [2022-03-03 18:38:21,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-03-03 18:38:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1400. [2022-03-03 18:38:21,971 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) [2022-03-03 18:38:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-03-03 18:38:21,973 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-03-03 18:38:21,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:21,974 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-03-03 18:38:21,974 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) [2022-03-03 18:38:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-03-03 18:38:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:21,975 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:21,975 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] [2022-03-03 18:38:21,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-03 18:38:21,975 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:21,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:21,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1444338033, now seen corresponding path program 195 times [2022-03-03 18:38:21,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:21,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177896954] [2022-03-03 18:38:21,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:21,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:22,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:22,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:22,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177896954] [2022-03-03 18:38:22,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177896954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:22,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:22,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:22,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935868784] [2022-03-03 18:38:22,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:22,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:22,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:22,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:22,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:22,091 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) [2022-03-03 18:38:22,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:22,309 INFO L93 Difference]: Finished difference Result 1607 states and 4488 transitions. [2022-03-03 18:38:22,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:22,309 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 [2022-03-03 18:38:22,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:22,312 INFO L225 Difference]: With dead ends: 1607 [2022-03-03 18:38:22,312 INFO L226 Difference]: Without dead ends: 1522 [2022-03-03 18:38:22,312 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 [2022-03-03 18:38:22,312 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 [2022-03-03 18:38:22,312 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] [2022-03-03 18:38:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-03-03 18:38:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1400. [2022-03-03 18:38:22,326 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) [2022-03-03 18:38:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-03-03 18:38:22,328 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-03-03 18:38:22,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:22,328 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-03-03 18:38:22,328 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) [2022-03-03 18:38:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-03-03 18:38:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:22,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:22,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:22,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-03 18:38:22,329 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:22,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:22,330 INFO L85 PathProgramCache]: Analyzing trace with hash -491962893, now seen corresponding path program 196 times [2022-03-03 18:38:22,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:22,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873185243] [2022-03-03 18:38:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:22,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:22,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:22,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873185243] [2022-03-03 18:38:22,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873185243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:22,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:22,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:22,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896249297] [2022-03-03 18:38:22,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:22,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:22,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:22,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:22,396 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) [2022-03-03 18:38:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:22,638 INFO L93 Difference]: Finished difference Result 1617 states and 4532 transitions. [2022-03-03 18:38:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:22,641 INFO L225 Difference]: With dead ends: 1617 [2022-03-03 18:38:22,641 INFO L226 Difference]: Without dead ends: 1522 [2022-03-03 18:38:22,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:22,641 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 [2022-03-03 18:38:22,642 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] [2022-03-03 18:38:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-03-03 18:38:22,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1407. [2022-03-03 18:38:22,656 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) [2022-03-03 18:38:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 3972 transitions. [2022-03-03 18:38:22,659 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 3972 transitions. Word has length 26 [2022-03-03 18:38:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:22,659 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 3972 transitions. [2022-03-03 18:38:22,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3972 transitions. [2022-03-03 18:38:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:22,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:22,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:22,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-03 18:38:22,661 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:22,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:22,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1817274959, now seen corresponding path program 197 times [2022-03-03 18:38:22,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:22,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873358897] [2022-03-03 18:38:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:22,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:22,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:22,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873358897] [2022-03-03 18:38:22,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873358897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:22,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:22,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:22,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631841606] [2022-03-03 18:38:22,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:22,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:22,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:22,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:22,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:22,727 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) [2022-03-03 18:38:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:22,966 INFO L93 Difference]: Finished difference Result 1602 states and 4492 transitions. [2022-03-03 18:38:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:22,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:22,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:22,969 INFO L225 Difference]: With dead ends: 1602 [2022-03-03 18:38:22,969 INFO L226 Difference]: Without dead ends: 1502 [2022-03-03 18:38:22,969 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 [2022-03-03 18:38:22,970 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 [2022-03-03 18:38:22,970 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] [2022-03-03 18:38:22,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-03-03 18:38:22,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1405. [2022-03-03 18:38:22,984 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) [2022-03-03 18:38:22,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 3969 transitions. [2022-03-03 18:38:22,986 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 3969 transitions. Word has length 26 [2022-03-03 18:38:22,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:22,986 INFO L470 AbstractCegarLoop]: Abstraction has 1405 states and 3969 transitions. [2022-03-03 18:38:22,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:22,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 3969 transitions. [2022-03-03 18:38:22,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:22,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:22,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:22,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-03 18:38:22,988 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:22,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1969715623, now seen corresponding path program 198 times [2022-03-03 18:38:22,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:22,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257439156] [2022-03-03 18:38:22,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:22,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:23,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:23,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:23,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257439156] [2022-03-03 18:38:23,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257439156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:23,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:23,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:23,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97281259] [2022-03-03 18:38:23,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:23,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:23,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:23,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:23,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:23,047 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) [2022-03-03 18:38:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:23,223 INFO L93 Difference]: Finished difference Result 1611 states and 4507 transitions. [2022-03-03 18:38:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:23,223 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 [2022-03-03 18:38:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:23,225 INFO L225 Difference]: With dead ends: 1611 [2022-03-03 18:38:23,225 INFO L226 Difference]: Without dead ends: 1524 [2022-03-03 18:38:23,226 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 [2022-03-03 18:38:23,226 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 [2022-03-03 18:38:23,226 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] [2022-03-03 18:38:23,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-03-03 18:38:23,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1406. [2022-03-03 18:38:23,239 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) [2022-03-03 18:38:23,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 3972 transitions. [2022-03-03 18:38:23,241 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 3972 transitions. Word has length 26 [2022-03-03 18:38:23,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:23,241 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 3972 transitions. [2022-03-03 18:38:23,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 3972 transitions. [2022-03-03 18:38:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:23,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:23,242 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] [2022-03-03 18:38:23,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-03 18:38:23,243 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:23,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:23,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1643998427, now seen corresponding path program 199 times [2022-03-03 18:38:23,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:23,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878741259] [2022-03-03 18:38:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:23,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:23,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:23,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878741259] [2022-03-03 18:38:23,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878741259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:23,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:23,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:23,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255775520] [2022-03-03 18:38:23,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:23,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:23,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:23,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:23,313 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) [2022-03-03 18:38:23,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:23,548 INFO L93 Difference]: Finished difference Result 1550 states and 4346 transitions. [2022-03-03 18:38:23,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:23,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:23,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:23,551 INFO L225 Difference]: With dead ends: 1550 [2022-03-03 18:38:23,551 INFO L226 Difference]: Without dead ends: 1462 [2022-03-03 18:38:23,551 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 [2022-03-03 18:38:23,551 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 [2022-03-03 18:38:23,551 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] [2022-03-03 18:38:23,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-03-03 18:38:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1408. [2022-03-03 18:38:23,564 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) [2022-03-03 18:38:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 3979 transitions. [2022-03-03 18:38:23,566 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 3979 transitions. Word has length 26 [2022-03-03 18:38:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:23,566 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 3979 transitions. [2022-03-03 18:38:23,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 3979 transitions. [2022-03-03 18:38:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:23,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:23,568 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] [2022-03-03 18:38:23,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-03 18:38:23,568 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:23,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:23,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1731935161, now seen corresponding path program 200 times [2022-03-03 18:38:23,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:23,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068908983] [2022-03-03 18:38:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:23,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:23,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:23,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068908983] [2022-03-03 18:38:23,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068908983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:23,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:23,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:23,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236255628] [2022-03-03 18:38:23,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:23,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:23,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:23,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:23,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:23,646 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) [2022-03-03 18:38:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:23,880 INFO L93 Difference]: Finished difference Result 1554 states and 4338 transitions. [2022-03-03 18:38:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:23,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:23,882 INFO L225 Difference]: With dead ends: 1554 [2022-03-03 18:38:23,882 INFO L226 Difference]: Without dead ends: 1468 [2022-03-03 18:38:23,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:23,883 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 [2022-03-03 18:38:23,883 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] [2022-03-03 18:38:23,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-03-03 18:38:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1407. [2022-03-03 18:38:23,903 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) [2022-03-03 18:38:23,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 3972 transitions. [2022-03-03 18:38:23,906 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 3972 transitions. Word has length 26 [2022-03-03 18:38:23,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:23,906 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 3972 transitions. [2022-03-03 18:38:23,906 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) [2022-03-03 18:38:23,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3972 transitions. [2022-03-03 18:38:23,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:23,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:23,907 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] [2022-03-03 18:38:23,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-03 18:38:23,907 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:23,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:23,908 INFO L85 PathProgramCache]: Analyzing trace with hash 251853881, now seen corresponding path program 201 times [2022-03-03 18:38:23,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:23,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114976830] [2022-03-03 18:38:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:23,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:23,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:23,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114976830] [2022-03-03 18:38:23,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114976830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:23,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:23,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:23,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683287847] [2022-03-03 18:38:23,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:23,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:23,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:23,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:23,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:23,972 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) [2022-03-03 18:38:24,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:24,217 INFO L93 Difference]: Finished difference Result 1620 states and 4536 transitions. [2022-03-03 18:38:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:24,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:24,220 INFO L225 Difference]: With dead ends: 1620 [2022-03-03 18:38:24,220 INFO L226 Difference]: Without dead ends: 1523 [2022-03-03 18:38:24,221 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 [2022-03-03 18:38:24,221 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:24,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 231 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:24,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2022-03-03 18:38:24,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1419. [2022-03-03 18:38:24,234 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) [2022-03-03 18:38:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4001 transitions. [2022-03-03 18:38:24,236 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4001 transitions. Word has length 26 [2022-03-03 18:38:24,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:24,236 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 4001 transitions. [2022-03-03 18:38:24,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:24,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4001 transitions. [2022-03-03 18:38:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:24,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:24,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:24,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-03 18:38:24,238 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:24,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:24,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1642175511, now seen corresponding path program 202 times [2022-03-03 18:38:24,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:24,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269345028] [2022-03-03 18:38:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:24,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:24,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:24,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269345028] [2022-03-03 18:38:24,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269345028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:24,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:24,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:24,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711755021] [2022-03-03 18:38:24,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:24,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:24,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:24,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:24,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:24,303 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) [2022-03-03 18:38:24,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:24,512 INFO L93 Difference]: Finished difference Result 1652 states and 4605 transitions. [2022-03-03 18:38:24,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:24,512 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:24,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:24,515 INFO L225 Difference]: With dead ends: 1652 [2022-03-03 18:38:24,515 INFO L226 Difference]: Without dead ends: 1563 [2022-03-03 18:38:24,515 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 [2022-03-03 18:38:24,515 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 [2022-03-03 18:38:24,515 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] [2022-03-03 18:38:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2022-03-03 18:38:24,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1418. [2022-03-03 18:38:24,528 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) [2022-03-03 18:38:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 4000 transitions. [2022-03-03 18:38:24,531 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 4000 transitions. Word has length 26 [2022-03-03 18:38:24,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:24,531 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 4000 transitions. [2022-03-03 18:38:24,531 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) [2022-03-03 18:38:24,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 4000 transitions. [2022-03-03 18:38:24,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:24,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:24,532 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] [2022-03-03 18:38:24,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-03 18:38:24,533 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:24,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:24,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2141185107, now seen corresponding path program 203 times [2022-03-03 18:38:24,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:24,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589182939] [2022-03-03 18:38:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:24,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:24,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:24,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589182939] [2022-03-03 18:38:24,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589182939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:24,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:24,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:24,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688914525] [2022-03-03 18:38:24,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:24,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:24,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:24,588 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) [2022-03-03 18:38:24,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:24,773 INFO L93 Difference]: Finished difference Result 1692 states and 4710 transitions. [2022-03-03 18:38:24,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:24,773 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 [2022-03-03 18:38:24,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:24,775 INFO L225 Difference]: With dead ends: 1692 [2022-03-03 18:38:24,775 INFO L226 Difference]: Without dead ends: 1504 [2022-03-03 18:38:24,775 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 [2022-03-03 18:38:24,776 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 58 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:24,776 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] [2022-03-03 18:38:24,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-03-03 18:38:24,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1400. [2022-03-03 18:38:24,788 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) [2022-03-03 18:38:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3920 transitions. [2022-03-03 18:38:24,790 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3920 transitions. Word has length 26 [2022-03-03 18:38:24,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:24,791 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3920 transitions. [2022-03-03 18:38:24,791 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) [2022-03-03 18:38:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3920 transitions. [2022-03-03 18:38:24,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:24,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:24,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:24,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-03 18:38:24,792 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash 574350543, now seen corresponding path program 204 times [2022-03-03 18:38:24,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:24,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826802082] [2022-03-03 18:38:24,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:24,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:24,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:24,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826802082] [2022-03-03 18:38:24,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826802082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:24,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:24,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:24,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286391206] [2022-03-03 18:38:24,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:24,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:24,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:24,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:24,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:24,857 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) [2022-03-03 18:38:25,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:25,093 INFO L93 Difference]: Finished difference Result 1597 states and 4423 transitions. [2022-03-03 18:38:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:25,093 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:25,096 INFO L225 Difference]: With dead ends: 1597 [2022-03-03 18:38:25,096 INFO L226 Difference]: Without dead ends: 1470 [2022-03-03 18:38:25,096 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 [2022-03-03 18:38:25,096 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 [2022-03-03 18:38:25,096 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] [2022-03-03 18:38:25,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-03-03 18:38:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1368. [2022-03-03 18:38:25,109 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) [2022-03-03 18:38:25,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 3839 transitions. [2022-03-03 18:38:25,111 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 3839 transitions. Word has length 26 [2022-03-03 18:38:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:25,111 INFO L470 AbstractCegarLoop]: Abstraction has 1368 states and 3839 transitions. [2022-03-03 18:38:25,111 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) [2022-03-03 18:38:25,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 3839 transitions. [2022-03-03 18:38:25,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:25,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:25,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:25,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-03 18:38:25,113 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:25,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash 583220337, now seen corresponding path program 205 times [2022-03-03 18:38:25,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:25,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47168116] [2022-03-03 18:38:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:25,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:25,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:25,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47168116] [2022-03-03 18:38:25,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47168116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:25,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:25,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:25,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778307857] [2022-03-03 18:38:25,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:25,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:25,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:25,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:25,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:25,177 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) [2022-03-03 18:38:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:25,426 INFO L93 Difference]: Finished difference Result 1512 states and 4214 transitions. [2022-03-03 18:38:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:25,426 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 [2022-03-03 18:38:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:25,428 INFO L225 Difference]: With dead ends: 1512 [2022-03-03 18:38:25,428 INFO L226 Difference]: Without dead ends: 1424 [2022-03-03 18:38:25,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:25,429 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:25,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 264 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-03-03 18:38:25,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1371. [2022-03-03 18:38:25,439 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) [2022-03-03 18:38:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 3847 transitions. [2022-03-03 18:38:25,441 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 3847 transitions. Word has length 26 [2022-03-03 18:38:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:25,441 INFO L470 AbstractCegarLoop]: Abstraction has 1371 states and 3847 transitions. [2022-03-03 18:38:25,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 3847 transitions. [2022-03-03 18:38:25,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:25,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:25,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:25,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-03 18:38:25,443 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:25,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:25,443 INFO L85 PathProgramCache]: Analyzing trace with hash 671157071, now seen corresponding path program 206 times [2022-03-03 18:38:25,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:25,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780982594] [2022-03-03 18:38:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:25,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:25,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:25,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780982594] [2022-03-03 18:38:25,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780982594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:25,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:25,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:25,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180284569] [2022-03-03 18:38:25,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:25,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:25,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:25,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:25,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:25,511 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) [2022-03-03 18:38:25,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:25,726 INFO L93 Difference]: Finished difference Result 1563 states and 4321 transitions. [2022-03-03 18:38:25,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:25,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:25,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:25,729 INFO L225 Difference]: With dead ends: 1563 [2022-03-03 18:38:25,729 INFO L226 Difference]: Without dead ends: 1477 [2022-03-03 18:38:25,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:25,729 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 [2022-03-03 18:38:25,729 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] [2022-03-03 18:38:25,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-03-03 18:38:25,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1369. [2022-03-03 18:38:25,741 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) [2022-03-03 18:38:25,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 3839 transitions. [2022-03-03 18:38:25,743 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 3839 transitions. Word has length 26 [2022-03-03 18:38:25,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:25,743 INFO L470 AbstractCegarLoop]: Abstraction has 1369 states and 3839 transitions. [2022-03-03 18:38:25,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 3839 transitions. [2022-03-03 18:38:25,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:25,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:25,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:25,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-03 18:38:25,745 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:25,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:25,745 INFO L85 PathProgramCache]: Analyzing trace with hash -808924209, now seen corresponding path program 207 times [2022-03-03 18:38:25,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:25,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646183198] [2022-03-03 18:38:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:25,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:25,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646183198] [2022-03-03 18:38:25,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646183198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:25,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:25,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:25,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998853878] [2022-03-03 18:38:25,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:25,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:25,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:25,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:25,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:25,816 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) [2022-03-03 18:38:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:26,054 INFO L93 Difference]: Finished difference Result 1575 states and 4380 transitions. [2022-03-03 18:38:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:26,054 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:26,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:26,056 INFO L225 Difference]: With dead ends: 1575 [2022-03-03 18:38:26,057 INFO L226 Difference]: Without dead ends: 1464 [2022-03-03 18:38:26,057 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 [2022-03-03 18:38:26,057 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 [2022-03-03 18:38:26,057 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] [2022-03-03 18:38:26,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-03 18:38:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1349. [2022-03-03 18:38:26,070 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) [2022-03-03 18:38:26,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 3784 transitions. [2022-03-03 18:38:26,072 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 3784 transitions. Word has length 26 [2022-03-03 18:38:26,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:26,072 INFO L470 AbstractCegarLoop]: Abstraction has 1349 states and 3784 transitions. [2022-03-03 18:38:26,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:26,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 3784 transitions. [2022-03-03 18:38:26,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:26,073 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:26,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:26,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-03 18:38:26,073 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:26,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1699875847, now seen corresponding path program 208 times [2022-03-03 18:38:26,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:26,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445039136] [2022-03-03 18:38:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:26,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:26,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445039136] [2022-03-03 18:38:26,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445039136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:26,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:26,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:26,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438458796] [2022-03-03 18:38:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:26,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:26,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:26,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:26,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:26,144 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) [2022-03-03 18:38:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:26,324 INFO L93 Difference]: Finished difference Result 1533 states and 4263 transitions. [2022-03-03 18:38:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:26,327 INFO L225 Difference]: With dead ends: 1533 [2022-03-03 18:38:26,327 INFO L226 Difference]: Without dead ends: 1448 [2022-03-03 18:38:26,327 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 [2022-03-03 18:38:26,327 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:26,327 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] [2022-03-03 18:38:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-03-03 18:38:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1355. [2022-03-03 18:38:26,340 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) [2022-03-03 18:38:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 3794 transitions. [2022-03-03 18:38:26,342 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 3794 transitions. Word has length 26 [2022-03-03 18:38:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:26,342 INFO L470 AbstractCegarLoop]: Abstraction has 1355 states and 3794 transitions. [2022-03-03 18:38:26,342 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) [2022-03-03 18:38:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 3794 transitions. [2022-03-03 18:38:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:26,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:26,343 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] [2022-03-03 18:38:26,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-03 18:38:26,343 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:26,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:26,344 INFO L85 PathProgramCache]: Analyzing trace with hash 658790523, now seen corresponding path program 209 times [2022-03-03 18:38:26,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:26,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61721077] [2022-03-03 18:38:26,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:26,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:26,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:26,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:26,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61721077] [2022-03-03 18:38:26,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61721077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:26,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:26,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:26,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768490442] [2022-03-03 18:38:26,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:26,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:26,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:26,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:26,402 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) [2022-03-03 18:38:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:26,592 INFO L93 Difference]: Finished difference Result 1554 states and 4325 transitions. [2022-03-03 18:38:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:26,593 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 [2022-03-03 18:38:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:26,595 INFO L225 Difference]: With dead ends: 1554 [2022-03-03 18:38:26,595 INFO L226 Difference]: Without dead ends: 1459 [2022-03-03 18:38:26,595 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 [2022-03-03 18:38:26,595 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:26,595 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] [2022-03-03 18:38:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2022-03-03 18:38:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1367. [2022-03-03 18:38:26,607 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) [2022-03-03 18:38:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 3823 transitions. [2022-03-03 18:38:26,609 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 3823 transitions. Word has length 26 [2022-03-03 18:38:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:26,609 INFO L470 AbstractCegarLoop]: Abstraction has 1367 states and 3823 transitions. [2022-03-03 18:38:26,609 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) [2022-03-03 18:38:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 3823 transitions. [2022-03-03 18:38:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:26,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:26,611 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] [2022-03-03 18:38:26,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-03 18:38:26,611 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:26,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1026162907, now seen corresponding path program 210 times [2022-03-03 18:38:26,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:26,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49886355] [2022-03-03 18:38:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:26,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:26,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:26,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:26,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49886355] [2022-03-03 18:38:26,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49886355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:26,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:26,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:26,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769944411] [2022-03-03 18:38:26,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:26,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:26,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:26,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:26,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:26,718 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) [2022-03-03 18:38:26,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:26,947 INFO L93 Difference]: Finished difference Result 1615 states and 4457 transitions. [2022-03-03 18:38:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:26,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:26,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:26,950 INFO L225 Difference]: With dead ends: 1615 [2022-03-03 18:38:26,950 INFO L226 Difference]: Without dead ends: 1530 [2022-03-03 18:38:26,950 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 [2022-03-03 18:38:26,950 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 [2022-03-03 18:38:26,950 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] [2022-03-03 18:38:26,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-03-03 18:38:26,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1391. [2022-03-03 18:38:26,963 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) [2022-03-03 18:38:26,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 3889 transitions. [2022-03-03 18:38:26,965 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 3889 transitions. Word has length 26 [2022-03-03 18:38:26,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:26,965 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 3889 transitions. [2022-03-03 18:38:26,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:26,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 3889 transitions. [2022-03-03 18:38:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:26,966 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:26,966 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] [2022-03-03 18:38:26,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-03 18:38:26,966 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1289121183, now seen corresponding path program 211 times [2022-03-03 18:38:26,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:26,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99094654] [2022-03-03 18:38:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:26,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:27,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:27,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99094654] [2022-03-03 18:38:27,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99094654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:27,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:27,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:27,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745297373] [2022-03-03 18:38:27,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:27,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:27,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:27,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:27,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:27,031 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) [2022-03-03 18:38:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:27,250 INFO L93 Difference]: Finished difference Result 1549 states and 4282 transitions. [2022-03-03 18:38:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:27,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:27,253 INFO L225 Difference]: With dead ends: 1549 [2022-03-03 18:38:27,253 INFO L226 Difference]: Without dead ends: 1466 [2022-03-03 18:38:27,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:27,253 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 [2022-03-03 18:38:27,253 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] [2022-03-03 18:38:27,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-03-03 18:38:27,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1397. [2022-03-03 18:38:27,266 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) [2022-03-03 18:38:27,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 3897 transitions. [2022-03-03 18:38:27,268 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 3897 transitions. Word has length 26 [2022-03-03 18:38:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:27,268 INFO L470 AbstractCegarLoop]: Abstraction has 1397 states and 3897 transitions. [2022-03-03 18:38:27,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:27,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 3897 transitions. [2022-03-03 18:38:27,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:27,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:27,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:27,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-03 18:38:27,270 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:27,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:27,270 INFO L85 PathProgramCache]: Analyzing trace with hash -643700381, now seen corresponding path program 212 times [2022-03-03 18:38:27,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:27,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007459102] [2022-03-03 18:38:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:27,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:27,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:27,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007459102] [2022-03-03 18:38:27,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007459102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:27,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:27,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:27,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493496041] [2022-03-03 18:38:27,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:27,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:27,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:27,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:27,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:27,334 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) [2022-03-03 18:38:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:27,570 INFO L93 Difference]: Finished difference Result 1624 states and 4492 transitions. [2022-03-03 18:38:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:27,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:27,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:27,573 INFO L225 Difference]: With dead ends: 1624 [2022-03-03 18:38:27,573 INFO L226 Difference]: Without dead ends: 1536 [2022-03-03 18:38:27,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:27,574 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 [2022-03-03 18:38:27,574 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] [2022-03-03 18:38:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-03-03 18:38:27,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1423. [2022-03-03 18:38:27,587 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) [2022-03-03 18:38:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 3973 transitions. [2022-03-03 18:38:27,589 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 3973 transitions. Word has length 26 [2022-03-03 18:38:27,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:27,589 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 3973 transitions. [2022-03-03 18:38:27,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 3973 transitions. [2022-03-03 18:38:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:27,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:27,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:27,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-03 18:38:27,591 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:27,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:27,591 INFO L85 PathProgramCache]: Analyzing trace with hash -555763647, now seen corresponding path program 213 times [2022-03-03 18:38:27,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:27,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981523606] [2022-03-03 18:38:27,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:27,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:27,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:27,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981523606] [2022-03-03 18:38:27,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981523606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:27,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:27,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:27,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574052451] [2022-03-03 18:38:27,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:27,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:27,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:27,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:27,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:27,657 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) [2022-03-03 18:38:27,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:27,879 INFO L93 Difference]: Finished difference Result 1572 states and 4345 transitions. [2022-03-03 18:38:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:27,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:27,882 INFO L225 Difference]: With dead ends: 1572 [2022-03-03 18:38:27,882 INFO L226 Difference]: Without dead ends: 1484 [2022-03-03 18:38:27,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:27,882 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 [2022-03-03 18:38:27,882 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] [2022-03-03 18:38:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-03-03 18:38:27,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1415. [2022-03-03 18:38:27,895 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) [2022-03-03 18:38:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 3958 transitions. [2022-03-03 18:38:27,897 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 3958 transitions. Word has length 26 [2022-03-03 18:38:27,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:27,897 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 3958 transitions. [2022-03-03 18:38:27,897 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) [2022-03-03 18:38:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 3958 transitions. [2022-03-03 18:38:27,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:27,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:27,899 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] [2022-03-03 18:38:27,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-03 18:38:27,899 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash -248885385, now seen corresponding path program 214 times [2022-03-03 18:38:27,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:27,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619319846] [2022-03-03 18:38:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:27,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:27,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:27,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619319846] [2022-03-03 18:38:27,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619319846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:27,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:27,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:27,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137607443] [2022-03-03 18:38:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:27,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:27,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:27,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:27,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:27,969 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) [2022-03-03 18:38:28,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:28,190 INFO L93 Difference]: Finished difference Result 1653 states and 4558 transitions. [2022-03-03 18:38:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:28,190 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:28,192 INFO L225 Difference]: With dead ends: 1653 [2022-03-03 18:38:28,193 INFO L226 Difference]: Without dead ends: 1514 [2022-03-03 18:38:28,193 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 [2022-03-03 18:38:28,193 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 [2022-03-03 18:38:28,193 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] [2022-03-03 18:38:28,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-03-03 18:38:28,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1381. [2022-03-03 18:38:28,205 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) [2022-03-03 18:38:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 3860 transitions. [2022-03-03 18:38:28,207 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 3860 transitions. Word has length 26 [2022-03-03 18:38:28,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:28,207 INFO L470 AbstractCegarLoop]: Abstraction has 1381 states and 3860 transitions. [2022-03-03 18:38:28,207 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) [2022-03-03 18:38:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 3860 transitions. [2022-03-03 18:38:28,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:28,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:28,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:28,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-03 18:38:28,209 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:28,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:28,209 INFO L85 PathProgramCache]: Analyzing trace with hash -401326129, now seen corresponding path program 215 times [2022-03-03 18:38:28,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:28,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452229801] [2022-03-03 18:38:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:28,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:28,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:28,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452229801] [2022-03-03 18:38:28,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452229801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:28,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:28,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:28,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408911211] [2022-03-03 18:38:28,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:28,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:28,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:28,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:28,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:28,277 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) [2022-03-03 18:38:28,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:28,514 INFO L93 Difference]: Finished difference Result 1627 states and 4481 transitions. [2022-03-03 18:38:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:28,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:28,516 INFO L225 Difference]: With dead ends: 1627 [2022-03-03 18:38:28,516 INFO L226 Difference]: Without dead ends: 1465 [2022-03-03 18:38:28,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:28,517 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 [2022-03-03 18:38:28,517 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] [2022-03-03 18:38:28,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-03-03 18:38:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1360. [2022-03-03 18:38:28,529 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) [2022-03-03 18:38:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3804 transitions. [2022-03-03 18:38:28,531 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3804 transitions. Word has length 26 [2022-03-03 18:38:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:28,531 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3804 transitions. [2022-03-03 18:38:28,531 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) [2022-03-03 18:38:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3804 transitions. [2022-03-03 18:38:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:28,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:28,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:28,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-03 18:38:28,533 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:28,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:28,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1113653143, now seen corresponding path program 216 times [2022-03-03 18:38:28,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:28,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141224945] [2022-03-03 18:38:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:28,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:28,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:28,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141224945] [2022-03-03 18:38:28,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141224945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:28,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:28,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:28,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699496818] [2022-03-03 18:38:28,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:28,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:28,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:28,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:28,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:28,597 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) [2022-03-03 18:38:28,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:28,812 INFO L93 Difference]: Finished difference Result 1494 states and 4137 transitions. [2022-03-03 18:38:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:28,812 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 [2022-03-03 18:38:28,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:28,815 INFO L225 Difference]: With dead ends: 1494 [2022-03-03 18:38:28,815 INFO L226 Difference]: Without dead ends: 1409 [2022-03-03 18:38:28,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:28,815 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 [2022-03-03 18:38:28,815 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] [2022-03-03 18:38:28,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2022-03-03 18:38:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1353. [2022-03-03 18:38:28,828 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) [2022-03-03 18:38:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 3778 transitions. [2022-03-03 18:38:28,830 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 3778 transitions. Word has length 26 [2022-03-03 18:38:28,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:28,830 INFO L470 AbstractCegarLoop]: Abstraction has 1353 states and 3778 transitions. [2022-03-03 18:38:28,830 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) [2022-03-03 18:38:28,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 3778 transitions. [2022-03-03 18:38:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:28,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:28,831 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] [2022-03-03 18:38:28,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-03 18:38:28,832 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash -822647783, now seen corresponding path program 217 times [2022-03-03 18:38:28,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:28,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585634827] [2022-03-03 18:38:28,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:28,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:28,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:28,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585634827] [2022-03-03 18:38:28,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585634827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:28,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:28,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:28,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825336809] [2022-03-03 18:38:28,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:28,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:28,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:28,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:28,902 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) [2022-03-03 18:38:29,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:29,132 INFO L93 Difference]: Finished difference Result 1511 states and 4172 transitions. [2022-03-03 18:38:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:29,132 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:29,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:29,134 INFO L225 Difference]: With dead ends: 1511 [2022-03-03 18:38:29,134 INFO L226 Difference]: Without dead ends: 1416 [2022-03-03 18:38:29,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:29,135 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 [2022-03-03 18:38:29,135 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] [2022-03-03 18:38:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-03 18:38:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1354. [2022-03-03 18:38:29,146 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) [2022-03-03 18:38:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 3779 transitions. [2022-03-03 18:38:29,148 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 3779 transitions. Word has length 26 [2022-03-03 18:38:29,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:29,148 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 3779 transitions. [2022-03-03 18:38:29,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:29,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 3779 transitions. [2022-03-03 18:38:29,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:29,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:29,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:29,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-03 18:38:29,150 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:29,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:29,150 INFO L85 PathProgramCache]: Analyzing trace with hash -455275399, now seen corresponding path program 218 times [2022-03-03 18:38:29,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:29,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372865472] [2022-03-03 18:38:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:29,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:29,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:29,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372865472] [2022-03-03 18:38:29,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372865472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:29,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:29,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:29,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438527504] [2022-03-03 18:38:29,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:29,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:29,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:29,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:29,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:29,215 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) [2022-03-03 18:38:29,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:29,428 INFO L93 Difference]: Finished difference Result 1525 states and 4210 transitions. [2022-03-03 18:38:29,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:29,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:29,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:29,431 INFO L225 Difference]: With dead ends: 1525 [2022-03-03 18:38:29,431 INFO L226 Difference]: Without dead ends: 1440 [2022-03-03 18:38:29,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:29,431 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 [2022-03-03 18:38:29,431 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] [2022-03-03 18:38:29,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2022-03-03 18:38:29,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1356. [2022-03-03 18:38:29,443 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) [2022-03-03 18:38:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 3787 transitions. [2022-03-03 18:38:29,445 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 3787 transitions. Word has length 26 [2022-03-03 18:38:29,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:29,445 INFO L470 AbstractCegarLoop]: Abstraction has 1356 states and 3787 transitions. [2022-03-03 18:38:29,445 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) [2022-03-03 18:38:29,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 3787 transitions. [2022-03-03 18:38:29,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:29,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:29,446 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] [2022-03-03 18:38:29,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-03 18:38:29,446 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:29,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:29,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1524407807, now seen corresponding path program 219 times [2022-03-03 18:38:29,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:29,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739397011] [2022-03-03 18:38:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:29,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:29,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:29,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739397011] [2022-03-03 18:38:29,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739397011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:29,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:29,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:29,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618890290] [2022-03-03 18:38:29,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:29,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:29,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:29,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:29,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:29,512 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) [2022-03-03 18:38:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:29,723 INFO L93 Difference]: Finished difference Result 1497 states and 4138 transitions. [2022-03-03 18:38:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:29,723 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 [2022-03-03 18:38:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:29,725 INFO L225 Difference]: With dead ends: 1497 [2022-03-03 18:38:29,725 INFO L226 Difference]: Without dead ends: 1414 [2022-03-03 18:38:29,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:29,726 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 [2022-03-03 18:38:29,726 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] [2022-03-03 18:38:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-03-03 18:38:29,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1357. [2022-03-03 18:38:29,737 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) [2022-03-03 18:38:29,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 3789 transitions. [2022-03-03 18:38:29,747 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 3789 transitions. Word has length 26 [2022-03-03 18:38:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:29,747 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 3789 transitions. [2022-03-03 18:38:29,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:29,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 3789 transitions. [2022-03-03 18:38:29,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:29,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:29,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:29,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-03 18:38:29,749 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:29,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:29,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2125138687, now seen corresponding path program 220 times [2022-03-03 18:38:29,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:29,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689661802] [2022-03-03 18:38:29,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:29,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:29,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:29,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689661802] [2022-03-03 18:38:29,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689661802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:29,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:29,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:29,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133358123] [2022-03-03 18:38:29,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:29,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:29,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:29,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:29,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:29,818 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) [2022-03-03 18:38:30,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:30,041 INFO L93 Difference]: Finished difference Result 1489 states and 4130 transitions. [2022-03-03 18:38:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:30,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:30,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:30,044 INFO L225 Difference]: With dead ends: 1489 [2022-03-03 18:38:30,044 INFO L226 Difference]: Without dead ends: 1401 [2022-03-03 18:38:30,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:30,044 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:30,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 228 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-03-03 18:38:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1361. [2022-03-03 18:38:30,056 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) [2022-03-03 18:38:30,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 3801 transitions. [2022-03-03 18:38:30,058 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 3801 transitions. Word has length 26 [2022-03-03 18:38:30,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:30,058 INFO L470 AbstractCegarLoop]: Abstraction has 1361 states and 3801 transitions. [2022-03-03 18:38:30,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:30,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 3801 transitions. [2022-03-03 18:38:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:30,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:30,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:30,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-03 18:38:30,059 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:30,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2037201953, now seen corresponding path program 221 times [2022-03-03 18:38:30,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:30,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993766124] [2022-03-03 18:38:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:30,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:30,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993766124] [2022-03-03 18:38:30,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993766124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:30,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:30,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:30,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143907317] [2022-03-03 18:38:30,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:30,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:30,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:30,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:30,123 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) [2022-03-03 18:38:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:30,338 INFO L93 Difference]: Finished difference Result 1502 states and 4148 transitions. [2022-03-03 18:38:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:30,339 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 [2022-03-03 18:38:30,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:30,341 INFO L225 Difference]: With dead ends: 1502 [2022-03-03 18:38:30,341 INFO L226 Difference]: Without dead ends: 1414 [2022-03-03 18:38:30,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:30,341 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 [2022-03-03 18:38:30,341 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] [2022-03-03 18:38:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-03-03 18:38:30,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1360. [2022-03-03 18:38:30,354 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) [2022-03-03 18:38:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3801 transitions. [2022-03-03 18:38:30,356 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3801 transitions. Word has length 26 [2022-03-03 18:38:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:30,356 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3801 transitions. [2022-03-03 18:38:30,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3801 transitions. [2022-03-03 18:38:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:30,357 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:30,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:30,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-03 18:38:30,358 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:30,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1057142747, now seen corresponding path program 222 times [2022-03-03 18:38:30,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:30,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535181876] [2022-03-03 18:38:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:30,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:30,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:30,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535181876] [2022-03-03 18:38:30,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535181876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:30,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:30,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:30,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556814212] [2022-03-03 18:38:30,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:30,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:30,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:30,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:30,423 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) [2022-03-03 18:38:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:30,635 INFO L93 Difference]: Finished difference Result 1528 states and 4222 transitions. [2022-03-03 18:38:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:30,635 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 [2022-03-03 18:38:30,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:30,637 INFO L225 Difference]: With dead ends: 1528 [2022-03-03 18:38:30,637 INFO L226 Difference]: Without dead ends: 1443 [2022-03-03 18:38:30,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:30,638 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 [2022-03-03 18:38:30,638 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] [2022-03-03 18:38:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-03-03 18:38:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1358. [2022-03-03 18:38:30,649 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) [2022-03-03 18:38:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 3793 transitions. [2022-03-03 18:38:30,651 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 3793 transitions. Word has length 26 [2022-03-03 18:38:30,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:30,651 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 3793 transitions. [2022-03-03 18:38:30,651 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) [2022-03-03 18:38:30,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 3793 transitions. [2022-03-03 18:38:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:30,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:30,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:30,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-03 18:38:30,653 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:30,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:30,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1258141343, now seen corresponding path program 223 times [2022-03-03 18:38:30,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:30,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508503258] [2022-03-03 18:38:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:30,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:30,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508503258] [2022-03-03 18:38:30,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508503258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:30,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:30,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:30,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250472404] [2022-03-03 18:38:30,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:30,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:30,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:30,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:30,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:30,717 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) [2022-03-03 18:38:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:30,931 INFO L93 Difference]: Finished difference Result 1519 states and 4205 transitions. [2022-03-03 18:38:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:30,931 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:30,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:30,933 INFO L225 Difference]: With dead ends: 1519 [2022-03-03 18:38:30,934 INFO L226 Difference]: Without dead ends: 1436 [2022-03-03 18:38:30,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:30,934 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 [2022-03-03 18:38:30,934 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] [2022-03-03 18:38:30,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-03-03 18:38:30,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1359. [2022-03-03 18:38:30,945 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) [2022-03-03 18:38:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 3792 transitions. [2022-03-03 18:38:30,947 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 3792 transitions. Word has length 26 [2022-03-03 18:38:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:30,947 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 3792 transitions. [2022-03-03 18:38:30,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 3792 transitions. [2022-03-03 18:38:30,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:30,949 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:30,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:30,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-03 18:38:30,949 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:30,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:30,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1787758817, now seen corresponding path program 224 times [2022-03-03 18:38:30,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:30,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463038187] [2022-03-03 18:38:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:30,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:31,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:31,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:31,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463038187] [2022-03-03 18:38:31,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463038187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:31,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:31,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:31,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8365780] [2022-03-03 18:38:31,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:31,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:31,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:31,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:31,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:31,013 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) [2022-03-03 18:38:31,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:31,221 INFO L93 Difference]: Finished difference Result 1503 states and 4164 transitions. [2022-03-03 18:38:31,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:31,222 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 [2022-03-03 18:38:31,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:31,229 INFO L225 Difference]: With dead ends: 1503 [2022-03-03 18:38:31,229 INFO L226 Difference]: Without dead ends: 1416 [2022-03-03 18:38:31,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:31,229 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 [2022-03-03 18:38:31,229 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] [2022-03-03 18:38:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-03 18:38:31,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1358. [2022-03-03 18:38:31,240 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) [2022-03-03 18:38:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 3792 transitions. [2022-03-03 18:38:31,242 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 3792 transitions. Word has length 26 [2022-03-03 18:38:31,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:31,242 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 3792 transitions. [2022-03-03 18:38:31,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:31,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 3792 transitions. [2022-03-03 18:38:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:31,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:31,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:31,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-03 18:38:31,244 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:31,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1106505571, now seen corresponding path program 225 times [2022-03-03 18:38:31,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:31,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437330223] [2022-03-03 18:38:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:31,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:31,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:31,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:31,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437330223] [2022-03-03 18:38:31,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437330223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:31,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:31,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:31,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814230012] [2022-03-03 18:38:31,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:31,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:31,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:31,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:31,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:31,310 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) [2022-03-03 18:38:31,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:31,539 INFO L93 Difference]: Finished difference Result 1491 states and 4141 transitions. [2022-03-03 18:38:31,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:31,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:31,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:31,542 INFO L225 Difference]: With dead ends: 1491 [2022-03-03 18:38:31,542 INFO L226 Difference]: Without dead ends: 1403 [2022-03-03 18:38:31,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:31,542 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 [2022-03-03 18:38:31,542 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] [2022-03-03 18:38:31,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2022-03-03 18:38:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1360. [2022-03-03 18:38:31,554 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) [2022-03-03 18:38:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3799 transitions. [2022-03-03 18:38:31,555 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3799 transitions. Word has length 26 [2022-03-03 18:38:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:31,556 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3799 transitions. [2022-03-03 18:38:31,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3799 transitions. [2022-03-03 18:38:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:31,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:31,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:31,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-03 18:38:31,557 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1194442305, now seen corresponding path program 226 times [2022-03-03 18:38:31,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:31,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860282057] [2022-03-03 18:38:31,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:31,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:31,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:31,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860282057] [2022-03-03 18:38:31,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860282057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:31,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:31,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:31,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227622705] [2022-03-03 18:38:31,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:31,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:31,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:31,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:31,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:31,623 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) [2022-03-03 18:38:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:31,839 INFO L93 Difference]: Finished difference Result 1499 states and 4143 transitions. [2022-03-03 18:38:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:31,839 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 [2022-03-03 18:38:31,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:31,841 INFO L225 Difference]: With dead ends: 1499 [2022-03-03 18:38:31,842 INFO L226 Difference]: Without dead ends: 1413 [2022-03-03 18:38:31,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:31,842 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 [2022-03-03 18:38:31,842 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] [2022-03-03 18:38:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-03-03 18:38:31,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1359. [2022-03-03 18:38:31,854 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) [2022-03-03 18:38:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 3792 transitions. [2022-03-03 18:38:31,856 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 3792 transitions. Word has length 26 [2022-03-03 18:38:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:31,856 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 3792 transitions. [2022-03-03 18:38:31,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 3792 transitions. [2022-03-03 18:38:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:31,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:31,858 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] [2022-03-03 18:38:31,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-03 18:38:31,858 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:31,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:31,858 INFO L85 PathProgramCache]: Analyzing trace with hash -285638975, now seen corresponding path program 227 times [2022-03-03 18:38:31,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:31,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720626499] [2022-03-03 18:38:31,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:31,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:31,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:31,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720626499] [2022-03-03 18:38:31,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720626499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:31,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:31,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:31,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130811245] [2022-03-03 18:38:31,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:31,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:31,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:31,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:31,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:31,935 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) [2022-03-03 18:38:32,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:32,168 INFO L93 Difference]: Finished difference Result 1555 states and 4298 transitions. [2022-03-03 18:38:32,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:32,168 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 [2022-03-03 18:38:32,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:32,170 INFO L225 Difference]: With dead ends: 1555 [2022-03-03 18:38:32,171 INFO L226 Difference]: Without dead ends: 1458 [2022-03-03 18:38:32,171 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 [2022-03-03 18:38:32,171 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 [2022-03-03 18:38:32,171 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] [2022-03-03 18:38:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2022-03-03 18:38:32,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1352. [2022-03-03 18:38:32,183 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) [2022-03-03 18:38:32,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 3769 transitions. [2022-03-03 18:38:32,185 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 3769 transitions. Word has length 26 [2022-03-03 18:38:32,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:32,185 INFO L470 AbstractCegarLoop]: Abstraction has 1352 states and 3769 transitions. [2022-03-03 18:38:32,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 3769 transitions. [2022-03-03 18:38:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:32,186 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:32,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:32,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-03 18:38:32,187 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:32,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:32,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1104682655, now seen corresponding path program 228 times [2022-03-03 18:38:32,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:32,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863798692] [2022-03-03 18:38:32,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:32,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:32,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:32,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863798692] [2022-03-03 18:38:32,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863798692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:32,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:32,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:32,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142007340] [2022-03-03 18:38:32,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:32,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:32,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:32,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:32,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:32,260 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) [2022-03-03 18:38:32,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:32,472 INFO L93 Difference]: Finished difference Result 1504 states and 4155 transitions. [2022-03-03 18:38:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:32,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:32,474 INFO L225 Difference]: With dead ends: 1504 [2022-03-03 18:38:32,474 INFO L226 Difference]: Without dead ends: 1415 [2022-03-03 18:38:32,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:32,475 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 [2022-03-03 18:38:32,475 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] [2022-03-03 18:38:32,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-03-03 18:38:32,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1347. [2022-03-03 18:38:32,487 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) [2022-03-03 18:38:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 3758 transitions. [2022-03-03 18:38:32,489 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 3758 transitions. Word has length 26 [2022-03-03 18:38:32,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:32,489 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 3758 transitions. [2022-03-03 18:38:32,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:32,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 3758 transitions. [2022-03-03 18:38:32,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:32,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:32,491 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] [2022-03-03 18:38:32,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-03 18:38:32,491 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:32,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:32,491 INFO L85 PathProgramCache]: Analyzing trace with hash 907461327, now seen corresponding path program 229 times [2022-03-03 18:38:32,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:32,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060612872] [2022-03-03 18:38:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:32,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:32,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:32,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060612872] [2022-03-03 18:38:32,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060612872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:32,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:32,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:32,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431184391] [2022-03-03 18:38:32,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:32,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:32,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:32,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:32,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:32,548 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) [2022-03-03 18:38:32,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:32,748 INFO L93 Difference]: Finished difference Result 1541 states and 4265 transitions. [2022-03-03 18:38:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:32,748 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 [2022-03-03 18:38:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:32,751 INFO L225 Difference]: With dead ends: 1541 [2022-03-03 18:38:32,751 INFO L226 Difference]: Without dead ends: 1453 [2022-03-03 18:38:32,751 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 [2022-03-03 18:38:32,751 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 [2022-03-03 18:38:32,751 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] [2022-03-03 18:38:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-03 18:38:32,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1373. [2022-03-03 18:38:32,763 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) [2022-03-03 18:38:32,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 3834 transitions. [2022-03-03 18:38:32,765 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 3834 transitions. Word has length 26 [2022-03-03 18:38:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:32,765 INFO L470 AbstractCegarLoop]: Abstraction has 1373 states and 3834 transitions. [2022-03-03 18:38:32,765 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) [2022-03-03 18:38:32,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 3834 transitions. [2022-03-03 18:38:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:32,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:32,767 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] [2022-03-03 18:38:32,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-03 18:38:32,767 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:32,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:32,767 INFO L85 PathProgramCache]: Analyzing trace with hash 995398061, now seen corresponding path program 230 times [2022-03-03 18:38:32,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:32,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472891032] [2022-03-03 18:38:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:32,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:32,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:32,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472891032] [2022-03-03 18:38:32,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472891032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:32,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:32,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:32,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392622747] [2022-03-03 18:38:32,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:32,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:32,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:32,828 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) [2022-03-03 18:38:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:33,067 INFO L93 Difference]: Finished difference Result 1604 states and 4405 transitions. [2022-03-03 18:38:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:33,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:33,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:33,069 INFO L225 Difference]: With dead ends: 1604 [2022-03-03 18:38:33,069 INFO L226 Difference]: Without dead ends: 1393 [2022-03-03 18:38:33,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:33,069 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:33,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 287 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:33,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-03-03 18:38:33,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1293. [2022-03-03 18:38:33,080 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) [2022-03-03 18:38:33,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 3593 transitions. [2022-03-03 18:38:33,082 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 3593 transitions. Word has length 26 [2022-03-03 18:38:33,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:33,082 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 3593 transitions. [2022-03-03 18:38:33,082 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) [2022-03-03 18:38:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 3593 transitions. [2022-03-03 18:38:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:33,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:33,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:33,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-03 18:38:33,083 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:33,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:33,084 INFO L85 PathProgramCache]: Analyzing trace with hash -802894991, now seen corresponding path program 231 times [2022-03-03 18:38:33,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:33,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981534250] [2022-03-03 18:38:33,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:33,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:33,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:33,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981534250] [2022-03-03 18:38:33,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981534250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:33,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:33,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:33,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941473874] [2022-03-03 18:38:33,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:33,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:33,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:33,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:33,157 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) [2022-03-03 18:38:33,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:33,392 INFO L93 Difference]: Finished difference Result 1480 states and 4066 transitions. [2022-03-03 18:38:33,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:33,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:33,394 INFO L225 Difference]: With dead ends: 1480 [2022-03-03 18:38:33,394 INFO L226 Difference]: Without dead ends: 1392 [2022-03-03 18:38:33,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:33,395 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 [2022-03-03 18:38:33,395 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] [2022-03-03 18:38:33,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-03 18:38:33,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1290. [2022-03-03 18:38:33,406 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) [2022-03-03 18:38:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 3585 transitions. [2022-03-03 18:38:33,408 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 3585 transitions. Word has length 26 [2022-03-03 18:38:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:33,408 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 3585 transitions. [2022-03-03 18:38:33,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 3585 transitions. [2022-03-03 18:38:33,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:33,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:33,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:33,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-03 18:38:33,410 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:33,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:33,410 INFO L85 PathProgramCache]: Analyzing trace with hash -714958257, now seen corresponding path program 232 times [2022-03-03 18:38:33,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:33,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764136306] [2022-03-03 18:38:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:33,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:33,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764136306] [2022-03-03 18:38:33,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764136306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:33,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:33,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:33,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215210047] [2022-03-03 18:38:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:33,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:33,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:33,472 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) [2022-03-03 18:38:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:33,691 INFO L93 Difference]: Finished difference Result 1427 states and 3933 transitions. [2022-03-03 18:38:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:33,692 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 [2022-03-03 18:38:33,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:33,694 INFO L225 Difference]: With dead ends: 1427 [2022-03-03 18:38:33,694 INFO L226 Difference]: Without dead ends: 1341 [2022-03-03 18:38:33,694 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 [2022-03-03 18:38:33,694 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 [2022-03-03 18:38:33,694 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] [2022-03-03 18:38:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-03-03 18:38:33,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1293. [2022-03-03 18:38:33,705 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) [2022-03-03 18:38:33,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 3590 transitions. [2022-03-03 18:38:33,707 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 3590 transitions. Word has length 26 [2022-03-03 18:38:33,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:33,707 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 3590 transitions. [2022-03-03 18:38:33,707 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) [2022-03-03 18:38:33,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 3590 transitions. [2022-03-03 18:38:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:33,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:33,708 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] [2022-03-03 18:38:33,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-03 18:38:33,708 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash -804717907, now seen corresponding path program 233 times [2022-03-03 18:38:33,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:33,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904595847] [2022-03-03 18:38:33,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:33,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:33,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:33,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904595847] [2022-03-03 18:38:33,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904595847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:33,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:33,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:33,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762946327] [2022-03-03 18:38:33,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:33,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:33,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:33,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:33,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:33,784 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) [2022-03-03 18:38:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:34,003 INFO L93 Difference]: Finished difference Result 1430 states and 3930 transitions. [2022-03-03 18:38:34,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:34,003 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:34,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:34,006 INFO L225 Difference]: With dead ends: 1430 [2022-03-03 18:38:34,006 INFO L226 Difference]: Without dead ends: 1298 [2022-03-03 18:38:34,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:34,006 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 [2022-03-03 18:38:34,006 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] [2022-03-03 18:38:34,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2022-03-03 18:38:34,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1201. [2022-03-03 18:38:34,018 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) [2022-03-03 18:38:34,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 3351 transitions. [2022-03-03 18:38:34,020 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 3351 transitions. Word has length 26 [2022-03-03 18:38:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:34,020 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 3351 transitions. [2022-03-03 18:38:34,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:34,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 3351 transitions. [2022-03-03 18:38:34,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:34,021 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:34,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:34,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-03 18:38:34,021 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:34,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1461656273, now seen corresponding path program 234 times [2022-03-03 18:38:34,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:34,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103089490] [2022-03-03 18:38:34,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:34,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:34,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:34,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103089490] [2022-03-03 18:38:34,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103089490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:34,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:34,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:34,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645969355] [2022-03-03 18:38:34,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:34,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:34,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:34,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:34,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:34,079 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) [2022-03-03 18:38:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:34,276 INFO L93 Difference]: Finished difference Result 1516 states and 4163 transitions. [2022-03-03 18:38:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:34,276 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 [2022-03-03 18:38:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:34,278 INFO L225 Difference]: With dead ends: 1516 [2022-03-03 18:38:34,278 INFO L226 Difference]: Without dead ends: 1341 [2022-03-03 18:38:34,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:34,279 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 [2022-03-03 18:38:34,279 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] [2022-03-03 18:38:34,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-03-03 18:38:34,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1275. [2022-03-03 18:38:34,289 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) [2022-03-03 18:38:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3530 transitions. [2022-03-03 18:38:34,291 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3530 transitions. Word has length 26 [2022-03-03 18:38:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:34,291 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3530 transitions. [2022-03-03 18:38:34,291 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) [2022-03-03 18:38:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3530 transitions. [2022-03-03 18:38:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:34,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:34,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:34,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-03 18:38:34,293 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash 717041905, now seen corresponding path program 235 times [2022-03-03 18:38:34,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:34,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762007445] [2022-03-03 18:38:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:34,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:34,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:34,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762007445] [2022-03-03 18:38:34,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762007445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:34,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:34,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:34,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200001225] [2022-03-03 18:38:34,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:34,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:34,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:34,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:34,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:34,355 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) [2022-03-03 18:38:34,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:34,580 INFO L93 Difference]: Finished difference Result 1474 states and 4020 transitions. [2022-03-03 18:38:34,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:34,580 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 [2022-03-03 18:38:34,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:34,582 INFO L225 Difference]: With dead ends: 1474 [2022-03-03 18:38:34,582 INFO L226 Difference]: Without dead ends: 1337 [2022-03-03 18:38:34,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:34,582 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 [2022-03-03 18:38:34,582 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] [2022-03-03 18:38:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2022-03-03 18:38:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1249. [2022-03-03 18:38:34,592 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) [2022-03-03 18:38:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 3456 transitions. [2022-03-03 18:38:34,594 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 3456 transitions. Word has length 26 [2022-03-03 18:38:34,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:34,594 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 3456 transitions. [2022-03-03 18:38:34,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:34,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 3456 transitions. [2022-03-03 18:38:34,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:34,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:34,596 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] [2022-03-03 18:38:34,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-03 18:38:34,596 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:34,596 INFO L85 PathProgramCache]: Analyzing trace with hash 586578129, now seen corresponding path program 236 times [2022-03-03 18:38:34,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:34,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879743378] [2022-03-03 18:38:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:34,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:34,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:34,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879743378] [2022-03-03 18:38:34,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879743378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:34,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:34,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:34,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224410301] [2022-03-03 18:38:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:34,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:34,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:34,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:34,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:34,651 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) [2022-03-03 18:38:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:34,822 INFO L93 Difference]: Finished difference Result 1527 states and 4192 transitions. [2022-03-03 18:38:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:34,822 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 [2022-03-03 18:38:34,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:34,825 INFO L225 Difference]: With dead ends: 1527 [2022-03-03 18:38:34,825 INFO L226 Difference]: Without dead ends: 1416 [2022-03-03 18:38:34,825 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 [2022-03-03 18:38:34,825 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 [2022-03-03 18:38:34,825 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] [2022-03-03 18:38:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-03 18:38:34,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1255. [2022-03-03 18:38:34,837 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) [2022-03-03 18:38:34,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 3466 transitions. [2022-03-03 18:38:34,839 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 3466 transitions. Word has length 26 [2022-03-03 18:38:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:34,839 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 3466 transitions. [2022-03-03 18:38:34,839 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) [2022-03-03 18:38:34,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 3466 transitions. [2022-03-03 18:38:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:34,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:34,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:34,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-03 18:38:34,841 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:34,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:34,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1086004243, now seen corresponding path program 237 times [2022-03-03 18:38:34,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:34,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219904533] [2022-03-03 18:38:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:34,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:34,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:34,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219904533] [2022-03-03 18:38:34,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219904533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:34,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:34,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:34,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427011477] [2022-03-03 18:38:34,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:34,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:34,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:34,905 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) [2022-03-03 18:38:35,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:35,124 INFO L93 Difference]: Finished difference Result 1417 states and 3868 transitions. [2022-03-03 18:38:35,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:35,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:35,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:35,127 INFO L225 Difference]: With dead ends: 1417 [2022-03-03 18:38:35,127 INFO L226 Difference]: Without dead ends: 1324 [2022-03-03 18:38:35,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:35,127 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 [2022-03-03 18:38:35,127 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] [2022-03-03 18:38:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-03-03 18:38:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1258. [2022-03-03 18:38:35,138 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) [2022-03-03 18:38:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 3477 transitions. [2022-03-03 18:38:35,140 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 3477 transitions. Word has length 26 [2022-03-03 18:38:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:35,140 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 3477 transitions. [2022-03-03 18:38:35,140 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) [2022-03-03 18:38:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 3477 transitions. [2022-03-03 18:38:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:35,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:35,141 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] [2022-03-03 18:38:35,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-03 18:38:35,141 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:35,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash -625337261, now seen corresponding path program 238 times [2022-03-03 18:38:35,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:35,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146791562] [2022-03-03 18:38:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:35,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:35,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146791562] [2022-03-03 18:38:35,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146791562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:35,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:35,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:35,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384863698] [2022-03-03 18:38:35,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:35,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:35,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:35,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:35,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:35,204 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) [2022-03-03 18:38:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:35,439 INFO L93 Difference]: Finished difference Result 1452 states and 3941 transitions. [2022-03-03 18:38:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:35,439 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 [2022-03-03 18:38:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:35,441 INFO L225 Difference]: With dead ends: 1452 [2022-03-03 18:38:35,441 INFO L226 Difference]: Without dead ends: 1334 [2022-03-03 18:38:35,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:35,441 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 [2022-03-03 18:38:35,441 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] [2022-03-03 18:38:35,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-03-03 18:38:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1252. [2022-03-03 18:38:35,452 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) [2022-03-03 18:38:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3449 transitions. [2022-03-03 18:38:35,454 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3449 transitions. Word has length 26 [2022-03-03 18:38:35,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:35,454 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3449 transitions. [2022-03-03 18:38:35,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3449 transitions. [2022-03-03 18:38:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:35,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:35,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:35,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-03 18:38:35,456 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:35,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:35,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2006580209, now seen corresponding path program 239 times [2022-03-03 18:38:35,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:35,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344847090] [2022-03-03 18:38:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:35,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:35,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:35,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:35,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344847090] [2022-03-03 18:38:35,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344847090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:35,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:35,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:35,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014152499] [2022-03-03 18:38:35,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:35,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:35,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:35,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:35,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:35,519 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) [2022-03-03 18:38:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:35,735 INFO L93 Difference]: Finished difference Result 1528 states and 4182 transitions. [2022-03-03 18:38:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:35,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:35,737 INFO L225 Difference]: With dead ends: 1528 [2022-03-03 18:38:35,738 INFO L226 Difference]: Without dead ends: 1420 [2022-03-03 18:38:35,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:35,738 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 [2022-03-03 18:38:35,738 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] [2022-03-03 18:38:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2022-03-03 18:38:35,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1249. [2022-03-03 18:38:35,750 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) [2022-03-03 18:38:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 3441 transitions. [2022-03-03 18:38:35,752 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 3441 transitions. Word has length 26 [2022-03-03 18:38:35,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:35,752 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 3441 transitions. [2022-03-03 18:38:35,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:35,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 3441 transitions. [2022-03-03 18:38:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:35,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:35,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:35,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-03 18:38:35,754 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:35,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 946334187, now seen corresponding path program 240 times [2022-03-03 18:38:35,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:35,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501326616] [2022-03-03 18:38:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:35,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:35,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:35,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501326616] [2022-03-03 18:38:35,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501326616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:35,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:35,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:35,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798271942] [2022-03-03 18:38:35,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:35,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:35,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:35,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:35,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:35,811 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) [2022-03-03 18:38:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:35,981 INFO L93 Difference]: Finished difference Result 1511 states and 4128 transitions. [2022-03-03 18:38:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:35,981 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 [2022-03-03 18:38:35,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:35,983 INFO L225 Difference]: With dead ends: 1511 [2022-03-03 18:38:35,983 INFO L226 Difference]: Without dead ends: 1418 [2022-03-03 18:38:35,984 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 [2022-03-03 18:38:35,984 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 [2022-03-03 18:38:35,984 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] [2022-03-03 18:38:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2022-03-03 18:38:35,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1275. [2022-03-03 18:38:35,995 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) [2022-03-03 18:38:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3517 transitions. [2022-03-03 18:38:35,996 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3517 transitions. Word has length 26 [2022-03-03 18:38:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:35,997 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3517 transitions. [2022-03-03 18:38:35,997 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) [2022-03-03 18:38:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3517 transitions. [2022-03-03 18:38:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:35,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:35,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:35,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-03 18:38:35,998 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash -765007317, now seen corresponding path program 241 times [2022-03-03 18:38:35,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:35,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658241771] [2022-03-03 18:38:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:36,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:36,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658241771] [2022-03-03 18:38:36,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658241771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:36,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:36,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:36,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239007217] [2022-03-03 18:38:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:36,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:36,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:36,060 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) [2022-03-03 18:38:36,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:36,277 INFO L93 Difference]: Finished difference Result 1582 states and 4293 transitions. [2022-03-03 18:38:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:36,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:36,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:36,280 INFO L225 Difference]: With dead ends: 1582 [2022-03-03 18:38:36,280 INFO L226 Difference]: Without dead ends: 1369 [2022-03-03 18:38:36,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:36,280 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 [2022-03-03 18:38:36,280 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] [2022-03-03 18:38:36,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-03-03 18:38:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1275. [2022-03-03 18:38:36,291 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) [2022-03-03 18:38:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3491 transitions. [2022-03-03 18:38:36,292 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3491 transitions. Word has length 26 [2022-03-03 18:38:36,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:36,293 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3491 transitions. [2022-03-03 18:38:36,293 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) [2022-03-03 18:38:36,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3491 transitions. [2022-03-03 18:38:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:36,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:36,294 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] [2022-03-03 18:38:36,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-03 18:38:36,294 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:36,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash -591085043, now seen corresponding path program 242 times [2022-03-03 18:38:36,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:36,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010765973] [2022-03-03 18:38:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:36,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:36,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010765973] [2022-03-03 18:38:36,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010765973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:36,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:36,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:36,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66345986] [2022-03-03 18:38:36,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:36,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:36,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:36,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:36,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:36,357 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) [2022-03-03 18:38:36,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:36,568 INFO L93 Difference]: Finished difference Result 1460 states and 3935 transitions. [2022-03-03 18:38:36,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:36,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:36,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:36,570 INFO L225 Difference]: With dead ends: 1460 [2022-03-03 18:38:36,570 INFO L226 Difference]: Without dead ends: 1367 [2022-03-03 18:38:36,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:36,571 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 [2022-03-03 18:38:36,571 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] [2022-03-03 18:38:36,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-03-03 18:38:36,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1275. [2022-03-03 18:38:36,582 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) [2022-03-03 18:38:36,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3487 transitions. [2022-03-03 18:38:36,584 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3487 transitions. Word has length 26 [2022-03-03 18:38:36,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:36,584 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3487 transitions. [2022-03-03 18:38:36,584 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) [2022-03-03 18:38:36,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3487 transitions. [2022-03-03 18:38:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:36,585 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:36,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:36,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-03 18:38:36,586 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:36,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:36,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1992540749, now seen corresponding path program 243 times [2022-03-03 18:38:36,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:36,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976610951] [2022-03-03 18:38:36,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:36,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:36,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:36,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976610951] [2022-03-03 18:38:36,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976610951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:36,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:36,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:36,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570317371] [2022-03-03 18:38:36,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:36,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:36,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:36,649 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) [2022-03-03 18:38:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:36,881 INFO L93 Difference]: Finished difference Result 1471 states and 3964 transitions. [2022-03-03 18:38:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:36,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:36,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:36,883 INFO L225 Difference]: With dead ends: 1471 [2022-03-03 18:38:36,883 INFO L226 Difference]: Without dead ends: 1362 [2022-03-03 18:38:36,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:36,883 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 [2022-03-03 18:38:36,884 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] [2022-03-03 18:38:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-03-03 18:38:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1290. [2022-03-03 18:38:36,894 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) [2022-03-03 18:38:36,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 3523 transitions. [2022-03-03 18:38:36,896 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 3523 transitions. Word has length 26 [2022-03-03 18:38:36,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:36,896 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 3523 transitions. [2022-03-03 18:38:36,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:36,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 3523 transitions. [2022-03-03 18:38:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:36,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:36,897 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] [2022-03-03 18:38:36,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-03 18:38:36,897 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:36,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:36,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1873244311, now seen corresponding path program 244 times [2022-03-03 18:38:36,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:36,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482329422] [2022-03-03 18:38:36,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:36,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:36,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:36,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482329422] [2022-03-03 18:38:36,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482329422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:36,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:36,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:36,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176430000] [2022-03-03 18:38:36,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:36,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:36,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:36,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:36,960 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) [2022-03-03 18:38:37,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:37,199 INFO L93 Difference]: Finished difference Result 1456 states and 3922 transitions. [2022-03-03 18:38:37,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:37,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:37,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:37,202 INFO L225 Difference]: With dead ends: 1456 [2022-03-03 18:38:37,202 INFO L226 Difference]: Without dead ends: 1294 [2022-03-03 18:38:37,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:37,202 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 66 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:37,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 289 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:37,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-03 18:38:37,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1245. [2022-03-03 18:38:37,215 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) [2022-03-03 18:38:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3411 transitions. [2022-03-03 18:38:37,217 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3411 transitions. Word has length 26 [2022-03-03 18:38:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:37,217 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3411 transitions. [2022-03-03 18:38:37,217 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) [2022-03-03 18:38:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3411 transitions. [2022-03-03 18:38:37,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:37,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:37,218 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] [2022-03-03 18:38:37,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-03 18:38:37,218 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:37,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:37,219 INFO L85 PathProgramCache]: Analyzing trace with hash 842799917, now seen corresponding path program 245 times [2022-03-03 18:38:37,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:37,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625692153] [2022-03-03 18:38:37,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:37,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:37,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:37,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625692153] [2022-03-03 18:38:37,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625692153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:37,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:37,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:37,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357429510] [2022-03-03 18:38:37,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:37,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:37,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:37,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:37,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:37,275 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) [2022-03-03 18:38:37,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:37,459 INFO L93 Difference]: Finished difference Result 1475 states and 3997 transitions. [2022-03-03 18:38:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:37,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:37,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:37,462 INFO L225 Difference]: With dead ends: 1475 [2022-03-03 18:38:37,462 INFO L226 Difference]: Without dead ends: 1320 [2022-03-03 18:38:37,462 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 [2022-03-03 18:38:37,462 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:37,462 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] [2022-03-03 18:38:37,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-03-03 18:38:37,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1284. [2022-03-03 18:38:37,473 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) [2022-03-03 18:38:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 3492 transitions. [2022-03-03 18:38:37,474 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 3492 transitions. Word has length 26 [2022-03-03 18:38:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:37,475 INFO L470 AbstractCegarLoop]: Abstraction has 1284 states and 3492 transitions. [2022-03-03 18:38:37,475 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) [2022-03-03 18:38:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 3492 transitions. [2022-03-03 18:38:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:37,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:37,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:37,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-03 18:38:37,476 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:37,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:37,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1273469201, now seen corresponding path program 246 times [2022-03-03 18:38:37,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:37,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394311515] [2022-03-03 18:38:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:37,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:37,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:37,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394311515] [2022-03-03 18:38:37,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394311515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:37,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:37,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:37,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195311591] [2022-03-03 18:38:37,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:37,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:37,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:37,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:37,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:37,544 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) [2022-03-03 18:38:37,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:37,768 INFO L93 Difference]: Finished difference Result 1451 states and 3899 transitions. [2022-03-03 18:38:37,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:37,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:37,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:37,770 INFO L225 Difference]: With dead ends: 1451 [2022-03-03 18:38:37,770 INFO L226 Difference]: Without dead ends: 1310 [2022-03-03 18:38:37,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:37,770 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 [2022-03-03 18:38:37,770 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] [2022-03-03 18:38:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-03-03 18:38:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1258. [2022-03-03 18:38:37,781 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) [2022-03-03 18:38:37,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 3420 transitions. [2022-03-03 18:38:37,783 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 3420 transitions. Word has length 26 [2022-03-03 18:38:37,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:37,783 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 3420 transitions. [2022-03-03 18:38:37,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:37,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 3420 transitions. [2022-03-03 18:38:37,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:37,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:37,784 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] [2022-03-03 18:38:37,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-03 18:38:37,784 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:37,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:37,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1505149813, now seen corresponding path program 247 times [2022-03-03 18:38:37,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:37,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423067655] [2022-03-03 18:38:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:37,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:37,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:37,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423067655] [2022-03-03 18:38:37,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423067655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:37,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:37,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:37,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50556276] [2022-03-03 18:38:37,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:37,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:37,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:37,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:37,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:37,848 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) [2022-03-03 18:38:38,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:38,058 INFO L93 Difference]: Finished difference Result 1416 states and 3802 transitions. [2022-03-03 18:38:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:38,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:38,060 INFO L225 Difference]: With dead ends: 1416 [2022-03-03 18:38:38,060 INFO L226 Difference]: Without dead ends: 1335 [2022-03-03 18:38:38,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:38,061 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 [2022-03-03 18:38:38,061 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] [2022-03-03 18:38:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-03-03 18:38:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1260. [2022-03-03 18:38:38,071 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) [2022-03-03 18:38:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3427 transitions. [2022-03-03 18:38:38,073 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3427 transitions. Word has length 26 [2022-03-03 18:38:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:38,073 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 3427 transitions. [2022-03-03 18:38:38,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3427 transitions. [2022-03-03 18:38:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:38,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:38,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:38,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-03 18:38:38,074 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:38,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:38,075 INFO L85 PathProgramCache]: Analyzing trace with hash 853516557, now seen corresponding path program 248 times [2022-03-03 18:38:38,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:38,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817393143] [2022-03-03 18:38:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:38,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:38,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:38,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817393143] [2022-03-03 18:38:38,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817393143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:38,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:38,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:38,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276849946] [2022-03-03 18:38:38,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:38,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:38,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:38,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:38,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:38,144 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) [2022-03-03 18:38:38,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:38,365 INFO L93 Difference]: Finished difference Result 1422 states and 3809 transitions. [2022-03-03 18:38:38,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:38,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:38,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:38,367 INFO L225 Difference]: With dead ends: 1422 [2022-03-03 18:38:38,368 INFO L226 Difference]: Without dead ends: 1302 [2022-03-03 18:38:38,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:38,368 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 [2022-03-03 18:38:38,368 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] [2022-03-03 18:38:38,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2022-03-03 18:38:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1256. [2022-03-03 18:38:38,378 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) [2022-03-03 18:38:38,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 3414 transitions. [2022-03-03 18:38:38,380 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 3414 transitions. Word has length 26 [2022-03-03 18:38:38,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:38,380 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 3414 transitions. [2022-03-03 18:38:38,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 3414 transitions. [2022-03-03 18:38:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:38,381 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:38,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:38,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-03 18:38:38,381 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:38,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1220888941, now seen corresponding path program 249 times [2022-03-03 18:38:38,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:38,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565588767] [2022-03-03 18:38:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:38,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:38,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:38,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565588767] [2022-03-03 18:38:38,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565588767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:38,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:38,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:38,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240515549] [2022-03-03 18:38:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:38,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:38,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:38,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:38,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:38,445 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) [2022-03-03 18:38:38,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:38,655 INFO L93 Difference]: Finished difference Result 1383 states and 3716 transitions. [2022-03-03 18:38:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:38,655 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 [2022-03-03 18:38:38,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:38,657 INFO L225 Difference]: With dead ends: 1383 [2022-03-03 18:38:38,657 INFO L226 Difference]: Without dead ends: 1292 [2022-03-03 18:38:38,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:38,658 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 [2022-03-03 18:38:38,658 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] [2022-03-03 18:38:38,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-03 18:38:38,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1244. [2022-03-03 18:38:38,674 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) [2022-03-03 18:38:38,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3391 transitions. [2022-03-03 18:38:38,676 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3391 transitions. Word has length 26 [2022-03-03 18:38:38,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:38,676 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3391 transitions. [2022-03-03 18:38:38,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3391 transitions. [2022-03-03 18:38:38,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:38,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:38,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:38,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-03 18:38:38,677 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:38,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:38,678 INFO L85 PathProgramCache]: Analyzing trace with hash -331159793, now seen corresponding path program 250 times [2022-03-03 18:38:38,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:38,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620748858] [2022-03-03 18:38:38,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:38,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:38,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:38,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:38,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620748858] [2022-03-03 18:38:38,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620748858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:38,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:38,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:38,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312178389] [2022-03-03 18:38:38,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:38,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:38,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:38,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:38,746 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) [2022-03-03 18:38:38,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:38,934 INFO L93 Difference]: Finished difference Result 1483 states and 4005 transitions. [2022-03-03 18:38:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:38,934 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 [2022-03-03 18:38:38,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:38,936 INFO L225 Difference]: With dead ends: 1483 [2022-03-03 18:38:38,936 INFO L226 Difference]: Without dead ends: 1331 [2022-03-03 18:38:38,936 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 [2022-03-03 18:38:38,936 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 57 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:38,937 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] [2022-03-03 18:38:38,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-03-03 18:38:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1273. [2022-03-03 18:38:38,948 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) [2022-03-03 18:38:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 3449 transitions. [2022-03-03 18:38:38,949 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 3449 transitions. Word has length 26 [2022-03-03 18:38:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:38,949 INFO L470 AbstractCegarLoop]: Abstraction has 1273 states and 3449 transitions. [2022-03-03 18:38:38,949 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) [2022-03-03 18:38:38,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 3449 transitions. [2022-03-03 18:38:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:38,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:38,951 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] [2022-03-03 18:38:38,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-03 18:38:38,951 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:38,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:38,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1847538385, now seen corresponding path program 251 times [2022-03-03 18:38:38,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:38,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521455396] [2022-03-03 18:38:38,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:38,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:39,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:39,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521455396] [2022-03-03 18:38:39,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521455396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:39,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:39,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:39,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80663809] [2022-03-03 18:38:39,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:39,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:39,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:39,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:39,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:39,015 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) [2022-03-03 18:38:39,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:39,242 INFO L93 Difference]: Finished difference Result 1455 states and 3899 transitions. [2022-03-03 18:38:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:39,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:39,245 INFO L225 Difference]: With dead ends: 1455 [2022-03-03 18:38:39,245 INFO L226 Difference]: Without dead ends: 1330 [2022-03-03 18:38:39,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:39,245 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 [2022-03-03 18:38:39,245 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] [2022-03-03 18:38:39,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-03-03 18:38:39,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1247. [2022-03-03 18:38:39,256 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) [2022-03-03 18:38:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3387 transitions. [2022-03-03 18:38:39,258 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3387 transitions. Word has length 26 [2022-03-03 18:38:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:39,258 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3387 transitions. [2022-03-03 18:38:39,258 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) [2022-03-03 18:38:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3387 transitions. [2022-03-03 18:38:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:39,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:39,260 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] [2022-03-03 18:38:39,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-03 18:38:39,260 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:39,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1033646385, now seen corresponding path program 252 times [2022-03-03 18:38:39,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:39,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475814343] [2022-03-03 18:38:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:39,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:39,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:39,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475814343] [2022-03-03 18:38:39,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475814343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:39,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:39,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:39,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20020052] [2022-03-03 18:38:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:39,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:39,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:39,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:39,328 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) [2022-03-03 18:38:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:39,550 INFO L93 Difference]: Finished difference Result 1414 states and 3792 transitions. [2022-03-03 18:38:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:39,550 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 [2022-03-03 18:38:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:39,552 INFO L225 Difference]: With dead ends: 1414 [2022-03-03 18:38:39,552 INFO L226 Difference]: Without dead ends: 1315 [2022-03-03 18:38:39,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:39,552 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 [2022-03-03 18:38:39,552 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] [2022-03-03 18:38:39,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2022-03-03 18:38:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1253. [2022-03-03 18:38:39,563 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) [2022-03-03 18:38:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 3397 transitions. [2022-03-03 18:38:39,565 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 3397 transitions. Word has length 26 [2022-03-03 18:38:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:39,565 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 3397 transitions. [2022-03-03 18:38:39,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 3397 transitions. [2022-03-03 18:38:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:39,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:39,566 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] [2022-03-03 18:38:39,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-03 18:38:39,567 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash -534220271, now seen corresponding path program 253 times [2022-03-03 18:38:39,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:39,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236229905] [2022-03-03 18:38:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:39,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:39,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:39,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236229905] [2022-03-03 18:38:39,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236229905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:39,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:39,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:39,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370756444] [2022-03-03 18:38:39,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:39,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:39,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:39,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:39,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:39,631 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) [2022-03-03 18:38:39,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:39,849 INFO L93 Difference]: Finished difference Result 1410 states and 3784 transitions. [2022-03-03 18:38:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:39,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:39,851 INFO L225 Difference]: With dead ends: 1410 [2022-03-03 18:38:39,851 INFO L226 Difference]: Without dead ends: 1329 [2022-03-03 18:38:39,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:39,852 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 [2022-03-03 18:38:39,852 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] [2022-03-03 18:38:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-03-03 18:38:39,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1256. [2022-03-03 18:38:39,864 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) [2022-03-03 18:38:39,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 3408 transitions. [2022-03-03 18:38:39,865 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 3408 transitions. Word has length 26 [2022-03-03 18:38:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:39,865 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 3408 transitions. [2022-03-03 18:38:39,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:39,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 3408 transitions. [2022-03-03 18:38:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:39,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:39,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:39,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-03 18:38:39,867 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:39,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2049405521, now seen corresponding path program 254 times [2022-03-03 18:38:39,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:39,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190208382] [2022-03-03 18:38:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:39,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:39,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190208382] [2022-03-03 18:38:39,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190208382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:39,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:39,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:39,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768496557] [2022-03-03 18:38:39,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:39,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:39,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:39,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:39,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:39,934 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) [2022-03-03 18:38:40,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:40,169 INFO L93 Difference]: Finished difference Result 1435 states and 3835 transitions. [2022-03-03 18:38:40,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:40,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:40,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:40,172 INFO L225 Difference]: With dead ends: 1435 [2022-03-03 18:38:40,172 INFO L226 Difference]: Without dead ends: 1329 [2022-03-03 18:38:40,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:40,173 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 [2022-03-03 18:38:40,173 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] [2022-03-03 18:38:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-03-03 18:38:40,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1253. [2022-03-03 18:38:40,190 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) [2022-03-03 18:38:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 3397 transitions. [2022-03-03 18:38:40,192 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 3397 transitions. Word has length 26 [2022-03-03 18:38:40,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:40,192 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 3397 transitions. [2022-03-03 18:38:40,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:40,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 3397 transitions. [2022-03-03 18:38:40,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:40,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:40,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:40,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-03 18:38:40,193 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:40,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:40,194 INFO L85 PathProgramCache]: Analyzing trace with hash 386355695, now seen corresponding path program 255 times [2022-03-03 18:38:40,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:40,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419501287] [2022-03-03 18:38:40,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:40,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:40,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:40,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419501287] [2022-03-03 18:38:40,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419501287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:40,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:40,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:40,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815589859] [2022-03-03 18:38:40,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:40,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:40,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:40,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:40,261 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) [2022-03-03 18:38:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:40,471 INFO L93 Difference]: Finished difference Result 1387 states and 3720 transitions. [2022-03-03 18:38:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:40,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:40,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:40,474 INFO L225 Difference]: With dead ends: 1387 [2022-03-03 18:38:40,474 INFO L226 Difference]: Without dead ends: 1291 [2022-03-03 18:38:40,474 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 [2022-03-03 18:38:40,474 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 [2022-03-03 18:38:40,474 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] [2022-03-03 18:38:40,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-03-03 18:38:40,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1238. [2022-03-03 18:38:40,485 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) [2022-03-03 18:38:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3364 transitions. [2022-03-03 18:38:40,487 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3364 transitions. Word has length 26 [2022-03-03 18:38:40,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:40,487 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3364 transitions. [2022-03-03 18:38:40,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:40,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3364 transitions. [2022-03-03 18:38:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:40,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:40,488 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] [2022-03-03 18:38:40,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-03 18:38:40,489 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:40,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:40,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1058325163, now seen corresponding path program 256 times [2022-03-03 18:38:40,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:40,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865101031] [2022-03-03 18:38:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:40,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:40,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:40,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865101031] [2022-03-03 18:38:40,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865101031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:40,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:40,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:40,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414525859] [2022-03-03 18:38:40,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:40,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:40,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:40,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:40,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:40,565 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) [2022-03-03 18:38:40,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:40,726 INFO L93 Difference]: Finished difference Result 1442 states and 3911 transitions. [2022-03-03 18:38:40,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:40,726 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 [2022-03-03 18:38:40,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:40,728 INFO L225 Difference]: With dead ends: 1442 [2022-03-03 18:38:40,728 INFO L226 Difference]: Without dead ends: 1357 [2022-03-03 18:38:40,728 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 [2022-03-03 18:38:40,729 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 [2022-03-03 18:38:40,729 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] [2022-03-03 18:38:40,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-03-03 18:38:40,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1252. [2022-03-03 18:38:40,741 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) [2022-03-03 18:38:40,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3402 transitions. [2022-03-03 18:38:40,742 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3402 transitions. Word has length 26 [2022-03-03 18:38:40,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:40,743 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3402 transitions. [2022-03-03 18:38:40,743 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) [2022-03-03 18:38:40,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3402 transitions. [2022-03-03 18:38:40,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:40,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:40,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:40,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-03 18:38:40,744 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:40,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:40,744 INFO L85 PathProgramCache]: Analyzing trace with hash -510603379, now seen corresponding path program 257 times [2022-03-03 18:38:40,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:40,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295259515] [2022-03-03 18:38:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:40,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:40,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:40,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295259515] [2022-03-03 18:38:40,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295259515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:40,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:40,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:40,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148613011] [2022-03-03 18:38:40,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:40,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:40,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:40,804 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) [2022-03-03 18:38:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:40,974 INFO L93 Difference]: Finished difference Result 1475 states and 4004 transitions. [2022-03-03 18:38:40,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:40,974 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 [2022-03-03 18:38:40,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:40,976 INFO L225 Difference]: With dead ends: 1475 [2022-03-03 18:38:40,976 INFO L226 Difference]: Without dead ends: 1382 [2022-03-03 18:38:40,976 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 [2022-03-03 18:38:40,976 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 [2022-03-03 18:38:40,976 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] [2022-03-03 18:38:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-03-03 18:38:40,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1238. [2022-03-03 18:38:40,987 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) [2022-03-03 18:38:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3362 transitions. [2022-03-03 18:38:40,989 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3362 transitions. Word has length 26 [2022-03-03 18:38:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:40,989 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3362 transitions. [2022-03-03 18:38:40,989 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) [2022-03-03 18:38:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3362 transitions. [2022-03-03 18:38:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:40,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:40,990 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] [2022-03-03 18:38:40,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-03 18:38:40,990 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:40,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1568050315, now seen corresponding path program 258 times [2022-03-03 18:38:40,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:40,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562232966] [2022-03-03 18:38:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:40,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:41,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:41,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562232966] [2022-03-03 18:38:41,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562232966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:41,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:41,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:41,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192383939] [2022-03-03 18:38:41,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:41,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:41,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:41,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:41,055 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) [2022-03-03 18:38:41,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:41,260 INFO L93 Difference]: Finished difference Result 1375 states and 3707 transitions. [2022-03-03 18:38:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:41,260 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 [2022-03-03 18:38:41,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:41,262 INFO L225 Difference]: With dead ends: 1375 [2022-03-03 18:38:41,262 INFO L226 Difference]: Without dead ends: 1294 [2022-03-03 18:38:41,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:41,262 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 [2022-03-03 18:38:41,262 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] [2022-03-03 18:38:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-03 18:38:41,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1242. [2022-03-03 18:38:41,273 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) [2022-03-03 18:38:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 3377 transitions. [2022-03-03 18:38:41,275 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 3377 transitions. Word has length 26 [2022-03-03 18:38:41,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:41,275 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 3377 transitions. [2022-03-03 18:38:41,275 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) [2022-03-03 18:38:41,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 3377 transitions. [2022-03-03 18:38:41,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:41,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:41,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:41,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-03 18:38:41,277 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:41,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:41,277 INFO L85 PathProgramCache]: Analyzing trace with hash -368250611, now seen corresponding path program 259 times [2022-03-03 18:38:41,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:41,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18798297] [2022-03-03 18:38:41,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:41,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:41,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:41,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:41,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18798297] [2022-03-03 18:38:41,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18798297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:41,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:41,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:41,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606251293] [2022-03-03 18:38:41,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:41,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:41,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:41,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:41,349 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) [2022-03-03 18:38:41,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:41,568 INFO L93 Difference]: Finished difference Result 1385 states and 3725 transitions. [2022-03-03 18:38:41,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:41,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:41,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:41,570 INFO L225 Difference]: With dead ends: 1385 [2022-03-03 18:38:41,570 INFO L226 Difference]: Without dead ends: 1288 [2022-03-03 18:38:41,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:41,570 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 [2022-03-03 18:38:41,570 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] [2022-03-03 18:38:41,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-03-03 18:38:41,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1243. [2022-03-03 18:38:41,581 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) [2022-03-03 18:38:41,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 3379 transitions. [2022-03-03 18:38:41,583 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 3379 transitions. Word has length 26 [2022-03-03 18:38:41,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:41,583 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 3379 transitions. [2022-03-03 18:38:41,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:41,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 3379 transitions. [2022-03-03 18:38:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:41,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:41,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:41,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-03 18:38:41,584 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash -878227, now seen corresponding path program 260 times [2022-03-03 18:38:41,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:41,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504924725] [2022-03-03 18:38:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:41,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:41,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:41,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504924725] [2022-03-03 18:38:41,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504924725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:41,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:41,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:41,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799371428] [2022-03-03 18:38:41,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:41,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:41,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:41,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:41,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:41,667 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) [2022-03-03 18:38:41,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:41,872 INFO L93 Difference]: Finished difference Result 1363 states and 3672 transitions. [2022-03-03 18:38:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:41,872 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 [2022-03-03 18:38:41,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:41,874 INFO L225 Difference]: With dead ends: 1363 [2022-03-03 18:38:41,874 INFO L226 Difference]: Without dead ends: 1274 [2022-03-03 18:38:41,874 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 [2022-03-03 18:38:41,874 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 [2022-03-03 18:38:41,874 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] [2022-03-03 18:38:41,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2022-03-03 18:38:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1247. [2022-03-03 18:38:41,885 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) [2022-03-03 18:38:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3390 transitions. [2022-03-03 18:38:41,887 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3390 transitions. Word has length 26 [2022-03-03 18:38:41,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:41,887 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3390 transitions. [2022-03-03 18:38:41,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:41,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3390 transitions. [2022-03-03 18:38:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:41,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:41,889 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] [2022-03-03 18:38:41,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-03 18:38:41,889 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:41,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:41,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1670741515, now seen corresponding path program 261 times [2022-03-03 18:38:41,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:41,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983946084] [2022-03-03 18:38:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:41,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:41,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:41,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983946084] [2022-03-03 18:38:41,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983946084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:41,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:41,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:41,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805780261] [2022-03-03 18:38:41,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:41,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:41,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:41,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:41,968 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) [2022-03-03 18:38:42,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:42,188 INFO L93 Difference]: Finished difference Result 1378 states and 3704 transitions. [2022-03-03 18:38:42,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:42,189 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 [2022-03-03 18:38:42,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:42,191 INFO L225 Difference]: With dead ends: 1378 [2022-03-03 18:38:42,191 INFO L226 Difference]: Without dead ends: 1269 [2022-03-03 18:38:42,191 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 [2022-03-03 18:38:42,191 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 [2022-03-03 18:38:42,191 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] [2022-03-03 18:38:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-03-03 18:38:42,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1243. [2022-03-03 18:38:42,201 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) [2022-03-03 18:38:42,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 3376 transitions. [2022-03-03 18:38:42,203 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 3376 transitions. Word has length 26 [2022-03-03 18:38:42,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:42,203 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 3376 transitions. [2022-03-03 18:38:42,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:42,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 3376 transitions. [2022-03-03 18:38:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:42,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:42,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:42,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-03 18:38:42,205 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:42,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:42,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1361242349, now seen corresponding path program 262 times [2022-03-03 18:38:42,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:42,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129924426] [2022-03-03 18:38:42,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:42,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:42,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:42,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129924426] [2022-03-03 18:38:42,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129924426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:42,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:42,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:42,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009815360] [2022-03-03 18:38:42,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:42,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:42,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:42,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:42,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:42,271 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) [2022-03-03 18:38:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:42,478 INFO L93 Difference]: Finished difference Result 1384 states and 3725 transitions. [2022-03-03 18:38:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:42,479 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 [2022-03-03 18:38:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:42,481 INFO L225 Difference]: With dead ends: 1384 [2022-03-03 18:38:42,481 INFO L226 Difference]: Without dead ends: 1303 [2022-03-03 18:38:42,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:42,481 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 [2022-03-03 18:38:42,481 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] [2022-03-03 18:38:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-03-03 18:38:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1245. [2022-03-03 18:38:42,492 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) [2022-03-03 18:38:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3383 transitions. [2022-03-03 18:38:42,494 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3383 transitions. Word has length 26 [2022-03-03 18:38:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:42,494 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3383 transitions. [2022-03-03 18:38:42,494 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) [2022-03-03 18:38:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3383 transitions. [2022-03-03 18:38:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:42,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:42,495 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] [2022-03-03 18:38:42,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-03 18:38:42,495 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:42,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:42,496 INFO L85 PathProgramCache]: Analyzing trace with hash -575058577, now seen corresponding path program 263 times [2022-03-03 18:38:42,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:42,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147503560] [2022-03-03 18:38:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:42,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:42,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:42,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147503560] [2022-03-03 18:38:42,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147503560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:42,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:42,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:42,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263979734] [2022-03-03 18:38:42,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:42,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:42,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:42,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:42,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:42,560 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) [2022-03-03 18:38:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:42,783 INFO L93 Difference]: Finished difference Result 1389 states and 3727 transitions. [2022-03-03 18:38:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:42,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:42,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:42,785 INFO L225 Difference]: With dead ends: 1389 [2022-03-03 18:38:42,785 INFO L226 Difference]: Without dead ends: 1292 [2022-03-03 18:38:42,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:42,786 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 [2022-03-03 18:38:42,786 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] [2022-03-03 18:38:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-03 18:38:42,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1241. [2022-03-03 18:38:42,796 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) [2022-03-03 18:38:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 3368 transitions. [2022-03-03 18:38:42,798 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 3368 transitions. Word has length 26 [2022-03-03 18:38:42,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:42,798 INFO L470 AbstractCegarLoop]: Abstraction has 1241 states and 3368 transitions. [2022-03-03 18:38:42,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:42,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 3368 transitions. [2022-03-03 18:38:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:42,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:42,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:42,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-03 18:38:42,800 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1232222099, now seen corresponding path program 264 times [2022-03-03 18:38:42,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:42,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084233582] [2022-03-03 18:38:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:42,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:42,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:42,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084233582] [2022-03-03 18:38:42,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084233582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:42,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:42,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:42,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795652873] [2022-03-03 18:38:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:42,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:42,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:42,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:42,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:42,864 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) [2022-03-03 18:38:43,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:43,071 INFO L93 Difference]: Finished difference Result 1366 states and 3673 transitions. [2022-03-03 18:38:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:43,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:43,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:43,073 INFO L225 Difference]: With dead ends: 1366 [2022-03-03 18:38:43,073 INFO L226 Difference]: Without dead ends: 1279 [2022-03-03 18:38:43,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:43,074 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 [2022-03-03 18:38:43,074 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] [2022-03-03 18:38:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-03-03 18:38:43,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1242. [2022-03-03 18:38:43,085 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) [2022-03-03 18:38:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 3369 transitions. [2022-03-03 18:38:43,086 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 3369 transitions. Word has length 26 [2022-03-03 18:38:43,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:43,086 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 3369 transitions. [2022-03-03 18:38:43,086 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) [2022-03-03 18:38:43,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 3369 transitions. [2022-03-03 18:38:43,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:43,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:43,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:43,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-03 18:38:43,088 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:43,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1734179275, now seen corresponding path program 265 times [2022-03-03 18:38:43,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:43,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235873959] [2022-03-03 18:38:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:43,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:43,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:43,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235873959] [2022-03-03 18:38:43,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235873959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:43,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:43,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:43,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746503049] [2022-03-03 18:38:43,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:43,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:43,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:43,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:43,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:43,159 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) [2022-03-03 18:38:43,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:43,386 INFO L93 Difference]: Finished difference Result 1386 states and 3719 transitions. [2022-03-03 18:38:43,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:43,387 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 [2022-03-03 18:38:43,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:43,389 INFO L225 Difference]: With dead ends: 1386 [2022-03-03 18:38:43,389 INFO L226 Difference]: Without dead ends: 1281 [2022-03-03 18:38:43,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:43,389 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 [2022-03-03 18:38:43,389 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] [2022-03-03 18:38:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-03-03 18:38:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1236. [2022-03-03 18:38:43,400 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) [2022-03-03 18:38:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 3354 transitions. [2022-03-03 18:38:43,402 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 3354 transitions. Word has length 26 [2022-03-03 18:38:43,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:43,402 INFO L470 AbstractCegarLoop]: Abstraction has 1236 states and 3354 transitions. [2022-03-03 18:38:43,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 3354 transitions. [2022-03-03 18:38:43,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:43,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:43,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:43,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-03 18:38:43,403 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:43,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:43,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1511539919, now seen corresponding path program 266 times [2022-03-03 18:38:43,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:43,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500324160] [2022-03-03 18:38:43,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:43,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:43,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:43,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500324160] [2022-03-03 18:38:43,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500324160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:43,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:43,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:43,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988725029] [2022-03-03 18:38:43,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:43,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:43,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:43,467 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) [2022-03-03 18:38:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:43,663 INFO L93 Difference]: Finished difference Result 1442 states and 3908 transitions. [2022-03-03 18:38:43,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:43,664 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:43,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:43,666 INFO L225 Difference]: With dead ends: 1442 [2022-03-03 18:38:43,666 INFO L226 Difference]: Without dead ends: 1351 [2022-03-03 18:38:43,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:43,666 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 [2022-03-03 18:38:43,666 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] [2022-03-03 18:38:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-03-03 18:38:43,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1238. [2022-03-03 18:38:43,677 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) [2022-03-03 18:38:43,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3356 transitions. [2022-03-03 18:38:43,678 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3356 transitions. Word has length 26 [2022-03-03 18:38:43,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:43,678 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3356 transitions. [2022-03-03 18:38:43,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:43,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3356 transitions. [2022-03-03 18:38:43,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:43,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:43,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:43,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-03 18:38:43,680 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash 119395373, now seen corresponding path program 267 times [2022-03-03 18:38:43,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:43,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945960628] [2022-03-03 18:38:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:43,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:43,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:43,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945960628] [2022-03-03 18:38:43,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945960628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:43,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:43,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:43,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415307642] [2022-03-03 18:38:43,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:43,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:43,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:43,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:43,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:43,745 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) [2022-03-03 18:38:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:43,954 INFO L93 Difference]: Finished difference Result 1473 states and 3992 transitions. [2022-03-03 18:38:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:43,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:43,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:43,957 INFO L225 Difference]: With dead ends: 1473 [2022-03-03 18:38:43,957 INFO L226 Difference]: Without dead ends: 1381 [2022-03-03 18:38:43,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:43,957 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 [2022-03-03 18:38:43,957 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] [2022-03-03 18:38:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-03-03 18:38:43,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1234. [2022-03-03 18:38:43,970 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) [2022-03-03 18:38:43,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3342 transitions. [2022-03-03 18:38:43,972 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3342 transitions. Word has length 26 [2022-03-03 18:38:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:43,972 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3342 transitions. [2022-03-03 18:38:43,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3342 transitions. [2022-03-03 18:38:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:43,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:43,973 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] [2022-03-03 18:38:43,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-03 18:38:43,973 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:43,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:43,974 INFO L85 PathProgramCache]: Analyzing trace with hash 714043953, now seen corresponding path program 268 times [2022-03-03 18:38:43,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:43,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171475116] [2022-03-03 18:38:43,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:43,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:44,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:44,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171475116] [2022-03-03 18:38:44,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171475116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:44,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:44,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:44,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875059241] [2022-03-03 18:38:44,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:44,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:44,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:44,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:44,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:44,029 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) [2022-03-03 18:38:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:44,191 INFO L93 Difference]: Finished difference Result 1450 states and 3914 transitions. [2022-03-03 18:38:44,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:44,191 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 [2022-03-03 18:38:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:44,193 INFO L225 Difference]: With dead ends: 1450 [2022-03-03 18:38:44,193 INFO L226 Difference]: Without dead ends: 1359 [2022-03-03 18:38:44,193 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 [2022-03-03 18:38:44,193 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 [2022-03-03 18:38:44,193 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] [2022-03-03 18:38:44,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-03-03 18:38:44,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1260. [2022-03-03 18:38:44,204 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) [2022-03-03 18:38:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3414 transitions. [2022-03-03 18:38:44,206 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3414 transitions. Word has length 26 [2022-03-03 18:38:44,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:44,206 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 3414 transitions. [2022-03-03 18:38:44,206 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) [2022-03-03 18:38:44,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3414 transitions. [2022-03-03 18:38:44,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:44,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:44,208 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] [2022-03-03 18:38:44,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-03 18:38:44,208 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:44,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:44,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1222256973, now seen corresponding path program 269 times [2022-03-03 18:38:44,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:44,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172583346] [2022-03-03 18:38:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:44,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:44,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:44,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172583346] [2022-03-03 18:38:44,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172583346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:44,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:44,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:44,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411664215] [2022-03-03 18:38:44,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:44,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:44,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:44,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:44,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:44,280 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) [2022-03-03 18:38:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:44,491 INFO L93 Difference]: Finished difference Result 1501 states and 4029 transitions. [2022-03-03 18:38:44,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:44,491 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 [2022-03-03 18:38:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:44,493 INFO L225 Difference]: With dead ends: 1501 [2022-03-03 18:38:44,493 INFO L226 Difference]: Without dead ends: 1304 [2022-03-03 18:38:44,493 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 [2022-03-03 18:38:44,493 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 [2022-03-03 18:38:44,493 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] [2022-03-03 18:38:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-03-03 18:38:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1244. [2022-03-03 18:38:44,504 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) [2022-03-03 18:38:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3349 transitions. [2022-03-03 18:38:44,505 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3349 transitions. Word has length 26 [2022-03-03 18:38:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:44,505 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3349 transitions. [2022-03-03 18:38:44,505 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) [2022-03-03 18:38:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3349 transitions. [2022-03-03 18:38:44,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:44,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:44,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:44,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-03 18:38:44,507 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1003696817, now seen corresponding path program 270 times [2022-03-03 18:38:44,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:44,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324550274] [2022-03-03 18:38:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:44,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:44,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:44,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324550274] [2022-03-03 18:38:44,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324550274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:44,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:44,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:44,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667905784] [2022-03-03 18:38:44,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:44,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:44,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:44,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:44,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:44,575 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) [2022-03-03 18:38:44,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:44,782 INFO L93 Difference]: Finished difference Result 1399 states and 3720 transitions. [2022-03-03 18:38:44,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:44,782 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:44,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:44,784 INFO L225 Difference]: With dead ends: 1399 [2022-03-03 18:38:44,784 INFO L226 Difference]: Without dead ends: 1304 [2022-03-03 18:38:44,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:44,784 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 [2022-03-03 18:38:44,784 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] [2022-03-03 18:38:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-03-03 18:38:44,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1244. [2022-03-03 18:38:44,794 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) [2022-03-03 18:38:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3349 transitions. [2022-03-03 18:38:44,796 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3349 transitions. Word has length 26 [2022-03-03 18:38:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:44,796 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3349 transitions. [2022-03-03 18:38:44,796 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) [2022-03-03 18:38:44,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3349 transitions. [2022-03-03 18:38:44,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:44,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:44,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:44,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-03 18:38:44,797 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:44,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:44,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1354969553, now seen corresponding path program 271 times [2022-03-03 18:38:44,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:44,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420216172] [2022-03-03 18:38:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:44,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:44,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:44,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420216172] [2022-03-03 18:38:44,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420216172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:44,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:44,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:44,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760150647] [2022-03-03 18:38:44,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:44,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:44,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:44,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:44,861 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) [2022-03-03 18:38:45,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:45,085 INFO L93 Difference]: Finished difference Result 1389 states and 3693 transitions. [2022-03-03 18:38:45,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:45,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:45,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:45,087 INFO L225 Difference]: With dead ends: 1389 [2022-03-03 18:38:45,087 INFO L226 Difference]: Without dead ends: 1292 [2022-03-03 18:38:45,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:45,088 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 [2022-03-03 18:38:45,088 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] [2022-03-03 18:38:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-03 18:38:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1244. [2022-03-03 18:38:45,098 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) [2022-03-03 18:38:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3347 transitions. [2022-03-03 18:38:45,100 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3347 transitions. Word has length 26 [2022-03-03 18:38:45,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:45,100 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3347 transitions. [2022-03-03 18:38:45,100 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) [2022-03-03 18:38:45,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3347 transitions. [2022-03-03 18:38:45,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:45,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:45,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:45,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-03 18:38:45,102 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:45,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash 52478649, now seen corresponding path program 272 times [2022-03-03 18:38:45,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:45,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32262371] [2022-03-03 18:38:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:45,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:45,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:45,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32262371] [2022-03-03 18:38:45,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32262371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:45,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:45,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:45,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711604792] [2022-03-03 18:38:45,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:45,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:45,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:45,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:45,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:45,165 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) [2022-03-03 18:38:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:45,385 INFO L93 Difference]: Finished difference Result 1371 states and 3646 transitions. [2022-03-03 18:38:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:45,385 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 [2022-03-03 18:38:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:45,387 INFO L225 Difference]: With dead ends: 1371 [2022-03-03 18:38:45,387 INFO L226 Difference]: Without dead ends: 1266 [2022-03-03 18:38:45,387 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 [2022-03-03 18:38:45,387 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 [2022-03-03 18:38:45,387 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] [2022-03-03 18:38:45,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-03-03 18:38:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1232. [2022-03-03 18:38:45,397 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) [2022-03-03 18:38:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3323 transitions. [2022-03-03 18:38:45,399 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3323 transitions. Word has length 26 [2022-03-03 18:38:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:45,399 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3323 transitions. [2022-03-03 18:38:45,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3323 transitions. [2022-03-03 18:38:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:45,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:45,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:45,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-03 18:38:45,400 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:45,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1402035697, now seen corresponding path program 273 times [2022-03-03 18:38:45,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:45,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419760415] [2022-03-03 18:38:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:45,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:45,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:45,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419760415] [2022-03-03 18:38:45,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419760415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:45,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:45,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:45,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171439890] [2022-03-03 18:38:45,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:45,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:45,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:45,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:45,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:45,456 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) [2022-03-03 18:38:45,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:45,619 INFO L93 Difference]: Finished difference Result 1470 states and 3952 transitions. [2022-03-03 18:38:45,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:45,619 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 [2022-03-03 18:38:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:45,621 INFO L225 Difference]: With dead ends: 1470 [2022-03-03 18:38:45,621 INFO L226 Difference]: Without dead ends: 1389 [2022-03-03 18:38:45,622 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 [2022-03-03 18:38:45,622 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 [2022-03-03 18:38:45,622 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] [2022-03-03 18:38:45,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2022-03-03 18:38:45,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1270. [2022-03-03 18:38:45,632 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) [2022-03-03 18:38:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 3430 transitions. [2022-03-03 18:38:45,634 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 3430 transitions. Word has length 26 [2022-03-03 18:38:45,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:45,634 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 3430 transitions. [2022-03-03 18:38:45,634 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) [2022-03-03 18:38:45,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 3430 transitions. [2022-03-03 18:38:45,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:45,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:45,636 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] [2022-03-03 18:38:45,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-03 18:38:45,636 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash 956630673, now seen corresponding path program 274 times [2022-03-03 18:38:45,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:45,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320328990] [2022-03-03 18:38:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:45,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:45,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:45,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320328990] [2022-03-03 18:38:45,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320328990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:45,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:45,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:45,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723809359] [2022-03-03 18:38:45,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:45,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:45,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:45,699 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) [2022-03-03 18:38:45,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:45,913 INFO L93 Difference]: Finished difference Result 1525 states and 4077 transitions. [2022-03-03 18:38:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:45,913 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 [2022-03-03 18:38:45,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:45,915 INFO L225 Difference]: With dead ends: 1525 [2022-03-03 18:38:45,915 INFO L226 Difference]: Without dead ends: 1330 [2022-03-03 18:38:45,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:45,916 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 [2022-03-03 18:38:45,916 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] [2022-03-03 18:38:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-03-03 18:38:45,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1232. [2022-03-03 18:38:45,928 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) [2022-03-03 18:38:45,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3311 transitions. [2022-03-03 18:38:45,929 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3311 transitions. Word has length 26 [2022-03-03 18:38:45,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:45,929 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3311 transitions. [2022-03-03 18:38:45,929 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) [2022-03-03 18:38:45,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3311 transitions. [2022-03-03 18:38:45,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:45,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:45,931 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] [2022-03-03 18:38:45,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-03 18:38:45,931 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:45,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:45,931 INFO L85 PathProgramCache]: Analyzing trace with hash -520651185, now seen corresponding path program 275 times [2022-03-03 18:38:45,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:45,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254372806] [2022-03-03 18:38:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:45,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:46,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:46,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:46,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254372806] [2022-03-03 18:38:46,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254372806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:46,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:46,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:46,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993156057] [2022-03-03 18:38:46,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:46,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:46,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:46,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:46,010 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) [2022-03-03 18:38:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:46,223 INFO L93 Difference]: Finished difference Result 1421 states and 3771 transitions. [2022-03-03 18:38:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:46,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:46,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:46,225 INFO L225 Difference]: With dead ends: 1421 [2022-03-03 18:38:46,225 INFO L226 Difference]: Without dead ends: 1334 [2022-03-03 18:38:46,225 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 [2022-03-03 18:38:46,225 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 [2022-03-03 18:38:46,225 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] [2022-03-03 18:38:46,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-03-03 18:38:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1222. [2022-03-03 18:38:46,236 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) [2022-03-03 18:38:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 3287 transitions. [2022-03-03 18:38:46,237 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 3287 transitions. Word has length 26 [2022-03-03 18:38:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:46,237 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 3287 transitions. [2022-03-03 18:38:46,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:46,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 3287 transitions. [2022-03-03 18:38:46,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:46,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:46,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:46,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-03 18:38:46,239 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1838015185, now seen corresponding path program 276 times [2022-03-03 18:38:46,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:46,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186803349] [2022-03-03 18:38:46,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:46,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:46,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:46,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186803349] [2022-03-03 18:38:46,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186803349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:46,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:46,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:46,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610478025] [2022-03-03 18:38:46,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:46,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:46,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:46,323 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) [2022-03-03 18:38:46,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:46,552 INFO L93 Difference]: Finished difference Result 1394 states and 3706 transitions. [2022-03-03 18:38:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:46,553 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 [2022-03-03 18:38:46,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:46,555 INFO L225 Difference]: With dead ends: 1394 [2022-03-03 18:38:46,555 INFO L226 Difference]: Without dead ends: 1297 [2022-03-03 18:38:46,555 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 [2022-03-03 18:38:46,555 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 [2022-03-03 18:38:46,555 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] [2022-03-03 18:38:46,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-03-03 18:38:46,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1237. [2022-03-03 18:38:46,565 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) [2022-03-03 18:38:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 3323 transitions. [2022-03-03 18:38:46,567 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 3323 transitions. Word has length 26 [2022-03-03 18:38:46,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:46,567 INFO L470 AbstractCegarLoop]: Abstraction has 1237 states and 3323 transitions. [2022-03-03 18:38:46,567 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) [2022-03-03 18:38:46,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 3323 transitions. [2022-03-03 18:38:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:46,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:46,568 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] [2022-03-03 18:38:46,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-03 18:38:46,569 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:46,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash 918834063, now seen corresponding path program 277 times [2022-03-03 18:38:46,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:46,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824254853] [2022-03-03 18:38:46,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:46,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:46,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:46,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824254853] [2022-03-03 18:38:46,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824254853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:46,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:46,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:46,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312569279] [2022-03-03 18:38:46,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:46,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:46,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:46,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:46,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:46,633 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) [2022-03-03 18:38:46,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:46,865 INFO L93 Difference]: Finished difference Result 1383 states and 3684 transitions. [2022-03-03 18:38:46,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:46,865 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:46,867 INFO L225 Difference]: With dead ends: 1383 [2022-03-03 18:38:46,867 INFO L226 Difference]: Without dead ends: 1281 [2022-03-03 18:38:46,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:46,867 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 [2022-03-03 18:38:46,867 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] [2022-03-03 18:38:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-03-03 18:38:46,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1234. [2022-03-03 18:38:46,878 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) [2022-03-03 18:38:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3315 transitions. [2022-03-03 18:38:46,880 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3315 transitions. Word has length 26 [2022-03-03 18:38:46,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:46,880 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3315 transitions. [2022-03-03 18:38:46,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:46,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3315 transitions. [2022-03-03 18:38:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:46,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:46,881 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] [2022-03-03 18:38:46,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-03 18:38:46,881 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:46,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:46,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1815454421, now seen corresponding path program 278 times [2022-03-03 18:38:46,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:46,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675983194] [2022-03-03 18:38:46,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:46,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:46,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675983194] [2022-03-03 18:38:46,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675983194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:46,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:46,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:46,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614475613] [2022-03-03 18:38:46,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:46,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:46,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:46,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:46,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:46,947 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) [2022-03-03 18:38:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:47,187 INFO L93 Difference]: Finished difference Result 1413 states and 3754 transitions. [2022-03-03 18:38:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:47,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:47,189 INFO L225 Difference]: With dead ends: 1413 [2022-03-03 18:38:47,189 INFO L226 Difference]: Without dead ends: 1284 [2022-03-03 18:38:47,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:47,190 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 [2022-03-03 18:38:47,190 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] [2022-03-03 18:38:47,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-03-03 18:38:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1234. [2022-03-03 18:38:47,200 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) [2022-03-03 18:38:47,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3311 transitions. [2022-03-03 18:38:47,202 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3311 transitions. Word has length 26 [2022-03-03 18:38:47,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:47,202 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3311 transitions. [2022-03-03 18:38:47,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:47,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3311 transitions. [2022-03-03 18:38:47,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:47,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:47,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:47,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-03 18:38:47,204 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:47,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:47,204 INFO L85 PathProgramCache]: Analyzing trace with hash -728733203, now seen corresponding path program 279 times [2022-03-03 18:38:47,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:47,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134751009] [2022-03-03 18:38:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:47,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:47,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:47,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134751009] [2022-03-03 18:38:47,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134751009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:47,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:47,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:47,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987699544] [2022-03-03 18:38:47,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:47,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:47,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:47,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:47,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:47,282 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) [2022-03-03 18:38:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:47,498 INFO L93 Difference]: Finished difference Result 1364 states and 3627 transitions. [2022-03-03 18:38:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:47,500 INFO L225 Difference]: With dead ends: 1364 [2022-03-03 18:38:47,500 INFO L226 Difference]: Without dead ends: 1283 [2022-03-03 18:38:47,500 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 [2022-03-03 18:38:47,500 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:47,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 219 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:38:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-03-03 18:38:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1235. [2022-03-03 18:38:47,511 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) [2022-03-03 18:38:47,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 3315 transitions. [2022-03-03 18:38:47,513 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 3315 transitions. Word has length 26 [2022-03-03 18:38:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:47,513 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 3315 transitions. [2022-03-03 18:38:47,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 3315 transitions. [2022-03-03 18:38:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:47,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:47,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:47,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-03 18:38:47,514 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:47,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1629933167, now seen corresponding path program 280 times [2022-03-03 18:38:47,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:47,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855159841] [2022-03-03 18:38:47,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:47,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:47,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:47,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855159841] [2022-03-03 18:38:47,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855159841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:47,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:47,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:47,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108694866] [2022-03-03 18:38:47,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:47,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:47,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:47,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:47,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:47,580 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) [2022-03-03 18:38:47,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:47,810 INFO L93 Difference]: Finished difference Result 1374 states and 3654 transitions. [2022-03-03 18:38:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:47,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:47,812 INFO L225 Difference]: With dead ends: 1374 [2022-03-03 18:38:47,812 INFO L226 Difference]: Without dead ends: 1277 [2022-03-03 18:38:47,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:47,812 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 [2022-03-03 18:38:47,812 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] [2022-03-03 18:38:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-03-03 18:38:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1236. [2022-03-03 18:38:47,822 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) [2022-03-03 18:38:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 3317 transitions. [2022-03-03 18:38:47,824 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 3317 transitions. Word has length 26 [2022-03-03 18:38:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:47,824 INFO L470 AbstractCegarLoop]: Abstraction has 1236 states and 3317 transitions. [2022-03-03 18:38:47,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:47,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 3317 transitions. [2022-03-03 18:38:47,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:47,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:47,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:47,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-03 18:38:47,825 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:47,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1997305551, now seen corresponding path program 281 times [2022-03-03 18:38:47,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:47,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980288382] [2022-03-03 18:38:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:47,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:47,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980288382] [2022-03-03 18:38:47,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980288382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:47,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:47,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:47,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773798908] [2022-03-03 18:38:47,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:47,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:47,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:47,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:47,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:47,889 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) [2022-03-03 18:38:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:48,092 INFO L93 Difference]: Finished difference Result 1361 states and 3614 transitions. [2022-03-03 18:38:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:48,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:48,095 INFO L225 Difference]: With dead ends: 1361 [2022-03-03 18:38:48,095 INFO L226 Difference]: Without dead ends: 1270 [2022-03-03 18:38:48,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:48,095 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 [2022-03-03 18:38:48,095 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] [2022-03-03 18:38:48,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-03-03 18:38:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1230. [2022-03-03 18:38:48,106 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) [2022-03-03 18:38:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 3293 transitions. [2022-03-03 18:38:48,108 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 3293 transitions. Word has length 26 [2022-03-03 18:38:48,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:48,108 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 3293 transitions. [2022-03-03 18:38:48,108 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) [2022-03-03 18:38:48,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 3293 transitions. [2022-03-03 18:38:48,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:48,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:48,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:48,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-03 18:38:48,110 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:48,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:48,110 INFO L85 PathProgramCache]: Analyzing trace with hash 327442263, now seen corresponding path program 282 times [2022-03-03 18:38:48,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:48,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685048401] [2022-03-03 18:38:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:48,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:48,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:48,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685048401] [2022-03-03 18:38:48,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685048401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:48,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:48,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:48,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531961960] [2022-03-03 18:38:48,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:48,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:48,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:48,176 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) [2022-03-03 18:38:48,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:48,398 INFO L93 Difference]: Finished difference Result 1343 states and 3570 transitions. [2022-03-03 18:38:48,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:48,398 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:48,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:48,400 INFO L225 Difference]: With dead ends: 1343 [2022-03-03 18:38:48,400 INFO L226 Difference]: Without dead ends: 1244 [2022-03-03 18:38:48,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:48,400 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 [2022-03-03 18:38:48,401 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] [2022-03-03 18:38:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-03-03 18:38:48,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1229. [2022-03-03 18:38:48,410 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) [2022-03-03 18:38:48,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3292 transitions. [2022-03-03 18:38:48,412 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3292 transitions. Word has length 26 [2022-03-03 18:38:48,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:48,412 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3292 transitions. [2022-03-03 18:38:48,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:48,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3292 transitions. [2022-03-03 18:38:48,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:48,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:48,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:48,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-03 18:38:48,413 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:48,414 INFO L85 PathProgramCache]: Analyzing trace with hash -935541169, now seen corresponding path program 283 times [2022-03-03 18:38:48,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:48,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663709155] [2022-03-03 18:38:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:48,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:48,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:48,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:48,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663709155] [2022-03-03 18:38:48,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663709155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:48,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:48,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:48,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508938569] [2022-03-03 18:38:48,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:48,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:48,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:48,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:48,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:48,477 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) [2022-03-03 18:38:48,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:48,678 INFO L93 Difference]: Finished difference Result 1364 states and 3621 transitions. [2022-03-03 18:38:48,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:48,678 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:48,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:48,680 INFO L225 Difference]: With dead ends: 1364 [2022-03-03 18:38:48,680 INFO L226 Difference]: Without dead ends: 1283 [2022-03-03 18:38:48,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:48,681 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 [2022-03-03 18:38:48,681 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] [2022-03-03 18:38:48,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-03-03 18:38:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1229. [2022-03-03 18:38:48,691 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) [2022-03-03 18:38:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3294 transitions. [2022-03-03 18:38:48,693 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3294 transitions. Word has length 26 [2022-03-03 18:38:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:48,693 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3294 transitions. [2022-03-03 18:38:48,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3294 transitions. [2022-03-03 18:38:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:48,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:48,694 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] [2022-03-03 18:38:48,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-03 18:38:48,694 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1423125201, now seen corresponding path program 284 times [2022-03-03 18:38:48,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:48,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7761612] [2022-03-03 18:38:48,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:48,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:48,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7761612] [2022-03-03 18:38:48,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7761612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:48,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:48,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:48,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613803002] [2022-03-03 18:38:48,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:48,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:48,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:48,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:48,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:48,761 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) [2022-03-03 18:38:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:48,987 INFO L93 Difference]: Finished difference Result 1372 states and 3640 transitions. [2022-03-03 18:38:48,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:48,987 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 [2022-03-03 18:38:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:48,989 INFO L225 Difference]: With dead ends: 1372 [2022-03-03 18:38:48,989 INFO L226 Difference]: Without dead ends: 1275 [2022-03-03 18:38:48,989 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 [2022-03-03 18:38:48,989 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 [2022-03-03 18:38:48,990 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] [2022-03-03 18:38:48,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2022-03-03 18:38:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1228. [2022-03-03 18:38:49,000 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) [2022-03-03 18:38:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 3287 transitions. [2022-03-03 18:38:49,001 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 3287 transitions. Word has length 26 [2022-03-03 18:38:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:49,001 INFO L470 AbstractCegarLoop]: Abstraction has 1228 states and 3287 transitions. [2022-03-03 18:38:49,001 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) [2022-03-03 18:38:49,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 3287 transitions. [2022-03-03 18:38:49,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:49,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:49,003 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] [2022-03-03 18:38:49,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-03 18:38:49,003 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:49,003 INFO L85 PathProgramCache]: Analyzing trace with hash 765961679, now seen corresponding path program 285 times [2022-03-03 18:38:49,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:49,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107766961] [2022-03-03 18:38:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:49,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:49,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:49,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107766961] [2022-03-03 18:38:49,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107766961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:49,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:49,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:49,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446101652] [2022-03-03 18:38:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:49,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:49,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:49,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:49,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:49,076 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) [2022-03-03 18:38:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:49,284 INFO L93 Difference]: Finished difference Result 1374 states and 3642 transitions. [2022-03-03 18:38:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:49,284 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 [2022-03-03 18:38:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:49,287 INFO L225 Difference]: With dead ends: 1374 [2022-03-03 18:38:49,287 INFO L226 Difference]: Without dead ends: 1287 [2022-03-03 18:38:49,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:49,287 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 [2022-03-03 18:38:49,287 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] [2022-03-03 18:38:49,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-03-03 18:38:49,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1225. [2022-03-03 18:38:49,314 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) [2022-03-03 18:38:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 3275 transitions. [2022-03-03 18:38:49,316 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 3275 transitions. Word has length 26 [2022-03-03 18:38:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:49,316 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 3275 transitions. [2022-03-03 18:38:49,316 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) [2022-03-03 18:38:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 3275 transitions. [2022-03-03 18:38:49,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:49,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:49,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:49,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-03 18:38:49,318 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:49,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:49,318 INFO L85 PathProgramCache]: Analyzing trace with hash -562604243, now seen corresponding path program 286 times [2022-03-03 18:38:49,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:49,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341324159] [2022-03-03 18:38:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:49,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:49,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:49,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341324159] [2022-03-03 18:38:49,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341324159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:49,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:49,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:49,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340472032] [2022-03-03 18:38:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:49,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:49,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:49,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:49,410 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) [2022-03-03 18:38:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:49,644 INFO L93 Difference]: Finished difference Result 1354 states and 3596 transitions. [2022-03-03 18:38:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:49,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:49,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:49,646 INFO L225 Difference]: With dead ends: 1354 [2022-03-03 18:38:49,646 INFO L226 Difference]: Without dead ends: 1252 [2022-03-03 18:38:49,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:49,650 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 [2022-03-03 18:38:49,650 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] [2022-03-03 18:38:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-03-03 18:38:49,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1223. [2022-03-03 18:38:49,661 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) [2022-03-03 18:38:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 3273 transitions. [2022-03-03 18:38:49,662 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 3273 transitions. Word has length 26 [2022-03-03 18:38:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:49,662 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 3273 transitions. [2022-03-03 18:38:49,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 3273 transitions. [2022-03-03 18:38:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:49,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:49,664 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] [2022-03-03 18:38:49,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-03 18:38:49,664 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash -735880775, now seen corresponding path program 287 times [2022-03-03 18:38:49,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:49,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662095114] [2022-03-03 18:38:49,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:49,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:49,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:49,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662095114] [2022-03-03 18:38:49,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662095114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:49,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:49,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:49,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832490253] [2022-03-03 18:38:49,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:49,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:49,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:49,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:49,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:49,728 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) [2022-03-03 18:38:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:49,949 INFO L93 Difference]: Finished difference Result 1345 states and 3575 transitions. [2022-03-03 18:38:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:49,950 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:49,952 INFO L225 Difference]: With dead ends: 1345 [2022-03-03 18:38:49,952 INFO L226 Difference]: Without dead ends: 1248 [2022-03-03 18:38:49,952 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 [2022-03-03 18:38:49,952 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 [2022-03-03 18:38:49,952 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] [2022-03-03 18:38:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-03-03 18:38:49,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1222. [2022-03-03 18:38:49,962 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) [2022-03-03 18:38:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 3270 transitions. [2022-03-03 18:38:49,964 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 3270 transitions. Word has length 26 [2022-03-03 18:38:49,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:49,964 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 3270 transitions. [2022-03-03 18:38:49,964 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) [2022-03-03 18:38:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 3270 transitions. [2022-03-03 18:38:49,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:49,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:49,965 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] [2022-03-03 18:38:49,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-03 18:38:49,965 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:49,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:49,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2128025321, now seen corresponding path program 288 times [2022-03-03 18:38:49,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:49,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622652598] [2022-03-03 18:38:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:50,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:50,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622652598] [2022-03-03 18:38:50,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622652598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:50,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:50,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:50,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807091478] [2022-03-03 18:38:50,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:50,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:50,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:50,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:50,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:50,029 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) [2022-03-03 18:38:50,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:50,257 INFO L93 Difference]: Finished difference Result 1347 states and 3575 transitions. [2022-03-03 18:38:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:50,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:50,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:50,259 INFO L225 Difference]: With dead ends: 1347 [2022-03-03 18:38:50,259 INFO L226 Difference]: Without dead ends: 1226 [2022-03-03 18:38:50,259 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 [2022-03-03 18:38:50,260 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 [2022-03-03 18:38:50,260 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] [2022-03-03 18:38:50,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-03-03 18:38:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1190. [2022-03-03 18:38:50,270 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) [2022-03-03 18:38:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 3194 transitions. [2022-03-03 18:38:50,272 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 3194 transitions. Word has length 26 [2022-03-03 18:38:50,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:50,272 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 3194 transitions. [2022-03-03 18:38:50,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:50,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 3194 transitions. [2022-03-03 18:38:50,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:50,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:50,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:50,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-03 18:38:50,274 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:50,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:50,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1457225917, now seen corresponding path program 289 times [2022-03-03 18:38:50,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:50,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098035042] [2022-03-03 18:38:50,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:50,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:50,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:50,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098035042] [2022-03-03 18:38:50,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098035042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:50,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:50,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:50,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286240210] [2022-03-03 18:38:50,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:50,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:50,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:50,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:50,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:50,328 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) [2022-03-03 18:38:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:50,512 INFO L93 Difference]: Finished difference Result 1469 states and 3888 transitions. [2022-03-03 18:38:50,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:50,512 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 [2022-03-03 18:38:50,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:50,514 INFO L225 Difference]: With dead ends: 1469 [2022-03-03 18:38:50,514 INFO L226 Difference]: Without dead ends: 1294 [2022-03-03 18:38:50,514 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 [2022-03-03 18:38:50,515 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 64 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:50,515 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] [2022-03-03 18:38:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-03 18:38:50,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1264. [2022-03-03 18:38:50,525 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) [2022-03-03 18:38:50,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 3363 transitions. [2022-03-03 18:38:50,527 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 3363 transitions. Word has length 26 [2022-03-03 18:38:50,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:50,527 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 3363 transitions. [2022-03-03 18:38:50,527 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) [2022-03-03 18:38:50,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 3363 transitions. [2022-03-03 18:38:50,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:50,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:50,528 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] [2022-03-03 18:38:50,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-03 18:38:50,529 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:50,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:50,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1956652031, now seen corresponding path program 290 times [2022-03-03 18:38:50,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:50,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460046384] [2022-03-03 18:38:50,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:50,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:50,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:50,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460046384] [2022-03-03 18:38:50,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460046384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:50,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:50,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:50,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832149542] [2022-03-03 18:38:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:50,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:50,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:50,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:50,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:50,583 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) [2022-03-03 18:38:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:50,765 INFO L93 Difference]: Finished difference Result 1463 states and 3865 transitions. [2022-03-03 18:38:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:50,765 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 [2022-03-03 18:38:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:50,767 INFO L225 Difference]: With dead ends: 1463 [2022-03-03 18:38:50,767 INFO L226 Difference]: Without dead ends: 1305 [2022-03-03 18:38:50,768 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 [2022-03-03 18:38:50,768 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:50,768 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] [2022-03-03 18:38:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-03-03 18:38:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1277. [2022-03-03 18:38:50,786 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) [2022-03-03 18:38:50,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 3382 transitions. [2022-03-03 18:38:50,788 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 3382 transitions. Word has length 26 [2022-03-03 18:38:50,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:50,788 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 3382 transitions. [2022-03-03 18:38:50,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:50,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 3382 transitions. [2022-03-03 18:38:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:50,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:50,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:50,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-03 18:38:50,790 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:50,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:50,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1417739299, now seen corresponding path program 291 times [2022-03-03 18:38:50,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:50,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563350273] [2022-03-03 18:38:50,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:50,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:50,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:50,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563350273] [2022-03-03 18:38:50,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563350273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:50,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:50,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:50,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819556857] [2022-03-03 18:38:50,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:50,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:50,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:50,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:50,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:50,856 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) [2022-03-03 18:38:51,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:51,039 INFO L93 Difference]: Finished difference Result 1480 states and 3886 transitions. [2022-03-03 18:38:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:51,040 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 [2022-03-03 18:38:51,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:51,042 INFO L225 Difference]: With dead ends: 1480 [2022-03-03 18:38:51,042 INFO L226 Difference]: Without dead ends: 1330 [2022-03-03 18:38:51,042 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 [2022-03-03 18:38:51,042 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:51,042 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] [2022-03-03 18:38:51,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-03-03 18:38:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1268. [2022-03-03 18:38:51,052 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) [2022-03-03 18:38:51,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 3355 transitions. [2022-03-03 18:38:51,054 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 3355 transitions. Word has length 26 [2022-03-03 18:38:51,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:51,054 INFO L470 AbstractCegarLoop]: Abstraction has 1268 states and 3355 transitions. [2022-03-03 18:38:51,054 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) [2022-03-03 18:38:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 3355 transitions. [2022-03-03 18:38:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:51,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:51,055 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] [2022-03-03 18:38:51,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-03 18:38:51,055 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:51,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1353621305, now seen corresponding path program 292 times [2022-03-03 18:38:51,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:51,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625103473] [2022-03-03 18:38:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:51,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:51,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:51,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625103473] [2022-03-03 18:38:51,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625103473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:51,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:51,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:51,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530242127] [2022-03-03 18:38:51,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:51,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:51,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:51,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:51,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:51,109 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) [2022-03-03 18:38:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:51,288 INFO L93 Difference]: Finished difference Result 1405 states and 3686 transitions. [2022-03-03 18:38:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:51,288 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 [2022-03-03 18:38:51,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:51,290 INFO L225 Difference]: With dead ends: 1405 [2022-03-03 18:38:51,290 INFO L226 Difference]: Without dead ends: 1180 [2022-03-03 18:38:51,290 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 [2022-03-03 18:38:51,290 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:51,290 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] [2022-03-03 18:38:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-03-03 18:38:51,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1124. [2022-03-03 18:38:51,300 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) [2022-03-03 18:38:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 2972 transitions. [2022-03-03 18:38:51,302 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 2972 transitions. Word has length 26 [2022-03-03 18:38:51,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:51,302 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 2972 transitions. [2022-03-03 18:38:51,302 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) [2022-03-03 18:38:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 2972 transitions. [2022-03-03 18:38:51,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:51,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:51,303 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] [2022-03-03 18:38:51,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-03 18:38:51,303 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1484127453, now seen corresponding path program 293 times [2022-03-03 18:38:51,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:51,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929127737] [2022-03-03 18:38:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:51,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:51,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:51,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929127737] [2022-03-03 18:38:51,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929127737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:51,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:51,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:51,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37495417] [2022-03-03 18:38:51,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:51,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:51,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:51,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:51,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:51,358 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) [2022-03-03 18:38:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:51,544 INFO L93 Difference]: Finished difference Result 1284 states and 3343 transitions. [2022-03-03 18:38:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:51,544 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 [2022-03-03 18:38:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:51,546 INFO L225 Difference]: With dead ends: 1284 [2022-03-03 18:38:51,546 INFO L226 Difference]: Without dead ends: 1064 [2022-03-03 18:38:51,546 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 [2022-03-03 18:38:51,547 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:51,547 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] [2022-03-03 18:38:51,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-03-03 18:38:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1040. [2022-03-03 18:38:51,556 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) [2022-03-03 18:38:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 2714 transitions. [2022-03-03 18:38:51,557 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 2714 transitions. Word has length 26 [2022-03-03 18:38:51,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:51,557 INFO L470 AbstractCegarLoop]: Abstraction has 1040 states and 2714 transitions. [2022-03-03 18:38:51,557 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) [2022-03-03 18:38:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 2714 transitions. [2022-03-03 18:38:51,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:51,558 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:51,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:51,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-03 18:38:51,558 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:51,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash -632141665, now seen corresponding path program 294 times [2022-03-03 18:38:51,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:51,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429638073] [2022-03-03 18:38:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:51,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:51,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:51,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:51,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429638073] [2022-03-03 18:38:51,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429638073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:51,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:51,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:51,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030398892] [2022-03-03 18:38:51,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:51,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:51,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:51,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:51,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:51,622 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) [2022-03-03 18:38:51,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:51,846 INFO L93 Difference]: Finished difference Result 1182 states and 3054 transitions. [2022-03-03 18:38:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:51,847 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 [2022-03-03 18:38:51,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:51,848 INFO L225 Difference]: With dead ends: 1182 [2022-03-03 18:38:51,848 INFO L226 Difference]: Without dead ends: 982 [2022-03-03 18:38:51,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:51,848 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 [2022-03-03 18:38:51,848 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] [2022-03-03 18:38:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-03-03 18:38:51,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 950. [2022-03-03 18:38:51,856 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) [2022-03-03 18:38:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 2488 transitions. [2022-03-03 18:38:51,858 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 2488 transitions. Word has length 26 [2022-03-03 18:38:51,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:51,858 INFO L470 AbstractCegarLoop]: Abstraction has 950 states and 2488 transitions. [2022-03-03 18:38:51,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:51,858 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 2488 transitions. [2022-03-03 18:38:51,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:51,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:51,859 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] [2022-03-03 18:38:51,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-03 18:38:51,859 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:51,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash 781640861, now seen corresponding path program 295 times [2022-03-03 18:38:51,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:51,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293848065] [2022-03-03 18:38:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:51,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:51,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:51,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293848065] [2022-03-03 18:38:51,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293848065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:51,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:51,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:51,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941412301] [2022-03-03 18:38:51,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:51,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:51,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:51,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:51,923 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) [2022-03-03 18:38:52,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:52,144 INFO L93 Difference]: Finished difference Result 1068 states and 2776 transitions. [2022-03-03 18:38:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:52,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:52,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:52,146 INFO L225 Difference]: With dead ends: 1068 [2022-03-03 18:38:52,146 INFO L226 Difference]: Without dead ends: 975 [2022-03-03 18:38:52,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:52,146 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 [2022-03-03 18:38:52,146 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] [2022-03-03 18:38:52,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-03-03 18:38:52,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 956. [2022-03-03 18:38:52,154 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) [2022-03-03 18:38:52,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 2498 transitions. [2022-03-03 18:38:52,155 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 2498 transitions. Word has length 26 [2022-03-03 18:38:52,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:52,155 INFO L470 AbstractCegarLoop]: Abstraction has 956 states and 2498 transitions. [2022-03-03 18:38:52,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:52,155 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 2498 transitions. [2022-03-03 18:38:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:52,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:52,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:52,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-03 18:38:52,156 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:52,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:52,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1281066975, now seen corresponding path program 296 times [2022-03-03 18:38:52,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:52,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123467761] [2022-03-03 18:38:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:52,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:52,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:52,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:52,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123467761] [2022-03-03 18:38:52,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123467761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:52,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:52,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:52,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721452581] [2022-03-03 18:38:52,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:52,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:52,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:52,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:52,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:52,223 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) [2022-03-03 18:38:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:52,450 INFO L93 Difference]: Finished difference Result 1078 states and 2806 transitions. [2022-03-03 18:38:52,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:52,450 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 [2022-03-03 18:38:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:52,452 INFO L225 Difference]: With dead ends: 1078 [2022-03-03 18:38:52,452 INFO L226 Difference]: Without dead ends: 1003 [2022-03-03 18:38:52,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:52,452 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 [2022-03-03 18:38:52,452 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] [2022-03-03 18:38:52,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-03-03 18:38:52,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 959. [2022-03-03 18:38:52,460 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) [2022-03-03 18:38:52,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 2509 transitions. [2022-03-03 18:38:52,461 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 2509 transitions. Word has length 26 [2022-03-03 18:38:52,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:52,462 INFO L470 AbstractCegarLoop]: Abstraction has 959 states and 2509 transitions. [2022-03-03 18:38:52,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:52,462 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 2509 transitions. [2022-03-03 18:38:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:52,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:52,463 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] [2022-03-03 18:38:52,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-03 18:38:52,463 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:52,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:52,463 INFO L85 PathProgramCache]: Analyzing trace with hash -430274529, now seen corresponding path program 297 times [2022-03-03 18:38:52,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:52,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749389342] [2022-03-03 18:38:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:52,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:52,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:52,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749389342] [2022-03-03 18:38:52,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749389342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:52,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:52,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:52,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405197766] [2022-03-03 18:38:52,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:52,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:52,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:52,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:52,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:52,526 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) [2022-03-03 18:38:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:52,758 INFO L93 Difference]: Finished difference Result 1113 states and 2881 transitions. [2022-03-03 18:38:52,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:52,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:52,760 INFO L225 Difference]: With dead ends: 1113 [2022-03-03 18:38:52,760 INFO L226 Difference]: Without dead ends: 981 [2022-03-03 18:38:52,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:52,760 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 [2022-03-03 18:38:52,760 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] [2022-03-03 18:38:52,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-03-03 18:38:52,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 941. [2022-03-03 18:38:52,769 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) [2022-03-03 18:38:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 2463 transitions. [2022-03-03 18:38:52,770 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 2463 transitions. Word has length 26 [2022-03-03 18:38:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:52,770 INFO L470 AbstractCegarLoop]: Abstraction has 941 states and 2463 transitions. [2022-03-03 18:38:52,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 2463 transitions. [2022-03-03 18:38:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:52,771 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:52,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:52,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-03 18:38:52,771 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:52,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:52,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2093324355, now seen corresponding path program 298 times [2022-03-03 18:38:52,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:52,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759305462] [2022-03-03 18:38:52,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:52,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:52,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:52,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:52,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759305462] [2022-03-03 18:38:52,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759305462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:52,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:52,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:52,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732406496] [2022-03-03 18:38:52,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:52,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:52,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:52,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:52,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:52,836 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) [2022-03-03 18:38:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:53,052 INFO L93 Difference]: Finished difference Result 1045 states and 2715 transitions. [2022-03-03 18:38:53,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:53,053 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 [2022-03-03 18:38:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:53,054 INFO L225 Difference]: With dead ends: 1045 [2022-03-03 18:38:53,054 INFO L226 Difference]: Without dead ends: 955 [2022-03-03 18:38:53,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:53,054 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 [2022-03-03 18:38:53,054 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] [2022-03-03 18:38:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-03-03 18:38:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 926. [2022-03-03 18:38:53,062 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) [2022-03-03 18:38:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 2430 transitions. [2022-03-03 18:38:53,063 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 2430 transitions. Word has length 26 [2022-03-03 18:38:53,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:53,063 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 2430 transitions. [2022-03-03 18:38:53,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:53,063 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 2430 transitions. [2022-03-03 18:38:53,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:53,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:53,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:53,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-03 18:38:53,064 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:53,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:53,065 INFO L85 PathProgramCache]: Analyzing trace with hash -392318849, now seen corresponding path program 299 times [2022-03-03 18:38:53,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:53,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105038215] [2022-03-03 18:38:53,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:53,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:53,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:53,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105038215] [2022-03-03 18:38:53,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105038215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:53,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:53,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:53,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846463058] [2022-03-03 18:38:53,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:53,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:53,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:53,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:53,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:53,127 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) [2022-03-03 18:38:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:53,344 INFO L93 Difference]: Finished difference Result 1077 states and 2798 transitions. [2022-03-03 18:38:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:53,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:53,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:53,345 INFO L225 Difference]: With dead ends: 1077 [2022-03-03 18:38:53,345 INFO L226 Difference]: Without dead ends: 984 [2022-03-03 18:38:53,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:53,346 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 [2022-03-03 18:38:53,346 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] [2022-03-03 18:38:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-03-03 18:38:53,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 926. [2022-03-03 18:38:53,353 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) [2022-03-03 18:38:53,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 2422 transitions. [2022-03-03 18:38:53,354 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 2422 transitions. Word has length 26 [2022-03-03 18:38:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:53,354 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 2422 transitions. [2022-03-03 18:38:53,354 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) [2022-03-03 18:38:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 2422 transitions. [2022-03-03 18:38:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:53,355 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:53,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:53,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-03 18:38:53,355 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:53,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:53,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1421354887, now seen corresponding path program 300 times [2022-03-03 18:38:53,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:53,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141030642] [2022-03-03 18:38:53,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:53,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:53,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:53,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141030642] [2022-03-03 18:38:53,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141030642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:53,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:53,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:53,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3380943] [2022-03-03 18:38:53,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:53,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:53,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:53,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:53,429 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) [2022-03-03 18:38:53,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:53,643 INFO L93 Difference]: Finished difference Result 1095 states and 2837 transitions. [2022-03-03 18:38:53,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:53,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:53,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:53,645 INFO L225 Difference]: With dead ends: 1095 [2022-03-03 18:38:53,645 INFO L226 Difference]: Without dead ends: 1012 [2022-03-03 18:38:53,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:53,646 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 [2022-03-03 18:38:53,646 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] [2022-03-03 18:38:53,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-03-03 18:38:53,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 914. [2022-03-03 18:38:53,654 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) [2022-03-03 18:38:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 2395 transitions. [2022-03-03 18:38:53,655 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 2395 transitions. Word has length 26 [2022-03-03 18:38:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:53,656 INFO L470 AbstractCegarLoop]: Abstraction has 914 states and 2395 transitions. [2022-03-03 18:38:53,656 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) [2022-03-03 18:38:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 2395 transitions. [2022-03-03 18:38:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:53,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:53,657 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] [2022-03-03 18:38:53,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-03 18:38:53,657 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:53,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:53,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1304683867, now seen corresponding path program 301 times [2022-03-03 18:38:53,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:53,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121348212] [2022-03-03 18:38:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:53,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:53,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:53,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121348212] [2022-03-03 18:38:53,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121348212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:53,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:53,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:53,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626228284] [2022-03-03 18:38:53,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:53,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:53,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:53,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:53,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:53,722 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) [2022-03-03 18:38:53,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:53,938 INFO L93 Difference]: Finished difference Result 1015 states and 2644 transitions. [2022-03-03 18:38:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:53,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:53,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:53,939 INFO L225 Difference]: With dead ends: 1015 [2022-03-03 18:38:53,939 INFO L226 Difference]: Without dead ends: 928 [2022-03-03 18:38:53,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:53,940 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 [2022-03-03 18:38:53,940 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] [2022-03-03 18:38:53,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-03-03 18:38:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 876. [2022-03-03 18:38:53,947 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) [2022-03-03 18:38:53,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2300 transitions. [2022-03-03 18:38:53,948 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2300 transitions. Word has length 26 [2022-03-03 18:38:53,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:53,948 INFO L470 AbstractCegarLoop]: Abstraction has 876 states and 2300 transitions. [2022-03-03 18:38:53,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:53,948 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2300 transitions. [2022-03-03 18:38:53,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:53,949 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:53,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:53,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-03 18:38:53,949 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:53,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:53,949 INFO L85 PathProgramCache]: Analyzing trace with hash -911629735, now seen corresponding path program 302 times [2022-03-03 18:38:53,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:53,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011060620] [2022-03-03 18:38:53,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:53,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:54,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:54,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011060620] [2022-03-03 18:38:54,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011060620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:54,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:54,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:54,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100574408] [2022-03-03 18:38:54,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:54,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:54,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:54,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:54,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:54,024 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) [2022-03-03 18:38:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:54,227 INFO L93 Difference]: Finished difference Result 1024 states and 2650 transitions. [2022-03-03 18:38:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:54,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:54,229 INFO L225 Difference]: With dead ends: 1024 [2022-03-03 18:38:54,229 INFO L226 Difference]: Without dead ends: 949 [2022-03-03 18:38:54,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:54,229 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 [2022-03-03 18:38:54,229 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] [2022-03-03 18:38:54,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-03-03 18:38:54,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 881. [2022-03-03 18:38:54,237 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) [2022-03-03 18:38:54,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 2316 transitions. [2022-03-03 18:38:54,238 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 2316 transitions. Word has length 26 [2022-03-03 18:38:54,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:54,238 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 2316 transitions. [2022-03-03 18:38:54,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:54,238 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 2316 transitions. [2022-03-03 18:38:54,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:54,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:54,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:54,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-03 18:38:54,239 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:54,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1447036635, now seen corresponding path program 303 times [2022-03-03 18:38:54,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:54,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063777131] [2022-03-03 18:38:54,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:54,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:54,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:54,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063777131] [2022-03-03 18:38:54,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063777131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:54,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:54,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:54,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007831212] [2022-03-03 18:38:54,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:54,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:54,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:54,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:54,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:54,312 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) [2022-03-03 18:38:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:54,534 INFO L93 Difference]: Finished difference Result 1013 states and 2642 transitions. [2022-03-03 18:38:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:54,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:54,536 INFO L225 Difference]: With dead ends: 1013 [2022-03-03 18:38:54,536 INFO L226 Difference]: Without dead ends: 912 [2022-03-03 18:38:54,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:54,536 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 [2022-03-03 18:38:54,536 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] [2022-03-03 18:38:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-03-03 18:38:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 880. [2022-03-03 18:38:54,543 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) [2022-03-03 18:38:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2312 transitions. [2022-03-03 18:38:54,545 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2312 transitions. Word has length 26 [2022-03-03 18:38:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:54,545 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2312 transitions. [2022-03-03 18:38:54,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:54,545 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2312 transitions. [2022-03-03 18:38:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:54,546 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:54,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:54,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-03 18:38:54,546 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:54,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1814409019, now seen corresponding path program 304 times [2022-03-03 18:38:54,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:54,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887396447] [2022-03-03 18:38:54,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:54,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:54,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:54,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887396447] [2022-03-03 18:38:54,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887396447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:54,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:54,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:54,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685847449] [2022-03-03 18:38:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:54,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:54,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:54,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:54,611 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) [2022-03-03 18:38:54,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:54,811 INFO L93 Difference]: Finished difference Result 1005 states and 2609 transitions. [2022-03-03 18:38:54,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:54,812 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 [2022-03-03 18:38:54,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:54,813 INFO L225 Difference]: With dead ends: 1005 [2022-03-03 18:38:54,813 INFO L226 Difference]: Without dead ends: 924 [2022-03-03 18:38:54,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:54,813 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 [2022-03-03 18:38:54,813 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] [2022-03-03 18:38:54,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-03-03 18:38:54,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 882. [2022-03-03 18:38:54,821 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) [2022-03-03 18:38:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 2320 transitions. [2022-03-03 18:38:54,822 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 2320 transitions. Word has length 26 [2022-03-03 18:38:54,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:54,822 INFO L470 AbstractCegarLoop]: Abstraction has 882 states and 2320 transitions. [2022-03-03 18:38:54,822 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) [2022-03-03 18:38:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 2320 transitions. [2022-03-03 18:38:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:54,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:54,823 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] [2022-03-03 18:38:54,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-03 18:38:54,823 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:54,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1118437701, now seen corresponding path program 305 times [2022-03-03 18:38:54,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:54,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393259367] [2022-03-03 18:38:54,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:54,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:54,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:54,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393259367] [2022-03-03 18:38:54,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393259367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:54,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:54,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:54,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139460800] [2022-03-03 18:38:54,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:54,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:54,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:54,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:54,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:54,889 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) [2022-03-03 18:38:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:55,098 INFO L93 Difference]: Finished difference Result 1011 states and 2638 transitions. [2022-03-03 18:38:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:55,100 INFO L225 Difference]: With dead ends: 1011 [2022-03-03 18:38:55,100 INFO L226 Difference]: Without dead ends: 936 [2022-03-03 18:38:55,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:55,100 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 [2022-03-03 18:38:55,101 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] [2022-03-03 18:38:55,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-03-03 18:38:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 886. [2022-03-03 18:38:55,108 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) [2022-03-03 18:38:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 2334 transitions. [2022-03-03 18:38:55,109 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 2334 transitions. Word has length 26 [2022-03-03 18:38:55,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:55,109 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 2334 transitions. [2022-03-03 18:38:55,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:55,109 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 2334 transitions. [2022-03-03 18:38:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:55,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:55,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:55,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-03 18:38:55,110 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:55,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:55,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1240228669, now seen corresponding path program 306 times [2022-03-03 18:38:55,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:55,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989063932] [2022-03-03 18:38:55,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:55,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:55,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:55,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989063932] [2022-03-03 18:38:55,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989063932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:55,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:55,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:55,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009690859] [2022-03-03 18:38:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:55,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:55,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:55,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:55,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:55,174 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) [2022-03-03 18:38:55,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:55,394 INFO L93 Difference]: Finished difference Result 1026 states and 2678 transitions. [2022-03-03 18:38:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:55,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:55,396 INFO L225 Difference]: With dead ends: 1026 [2022-03-03 18:38:55,396 INFO L226 Difference]: Without dead ends: 925 [2022-03-03 18:38:55,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:55,396 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 [2022-03-03 18:38:55,396 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] [2022-03-03 18:38:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-03-03 18:38:55,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 883. [2022-03-03 18:38:55,403 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) [2022-03-03 18:38:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 2325 transitions. [2022-03-03 18:38:55,404 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 2325 transitions. Word has length 26 [2022-03-03 18:38:55,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:55,404 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 2325 transitions. [2022-03-03 18:38:55,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:55,404 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 2325 transitions. [2022-03-03 18:38:55,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:55,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:55,405 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] [2022-03-03 18:38:55,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-03 18:38:55,406 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:55,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:55,406 INFO L85 PathProgramCache]: Analyzing trace with hash 583065147, now seen corresponding path program 307 times [2022-03-03 18:38:55,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:55,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981656578] [2022-03-03 18:38:55,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:55,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:55,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:55,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981656578] [2022-03-03 18:38:55,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981656578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:55,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:55,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:55,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261185031] [2022-03-03 18:38:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:55,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:55,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:55,475 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) [2022-03-03 18:38:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:55,679 INFO L93 Difference]: Finished difference Result 993 states and 2589 transitions. [2022-03-03 18:38:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:55,680 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:55,681 INFO L225 Difference]: With dead ends: 993 [2022-03-03 18:38:55,681 INFO L226 Difference]: Without dead ends: 912 [2022-03-03 18:38:55,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:55,681 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 [2022-03-03 18:38:55,681 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] [2022-03-03 18:38:55,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-03-03 18:38:55,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 884. [2022-03-03 18:38:55,688 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) [2022-03-03 18:38:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2326 transitions. [2022-03-03 18:38:55,689 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2326 transitions. Word has length 26 [2022-03-03 18:38:55,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:55,690 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2326 transitions. [2022-03-03 18:38:55,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:55,690 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2326 transitions. [2022-03-03 18:38:55,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:55,691 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:55,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:55,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-03 18:38:55,691 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:55,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:55,691 INFO L85 PathProgramCache]: Analyzing trace with hash -745500775, now seen corresponding path program 308 times [2022-03-03 18:38:55,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:55,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17071679] [2022-03-03 18:38:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:55,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:55,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:55,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17071679] [2022-03-03 18:38:55,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17071679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:55,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:55,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:55,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313057538] [2022-03-03 18:38:55,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:55,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:55,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:55,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:55,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:55,757 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) [2022-03-03 18:38:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:55,983 INFO L93 Difference]: Finished difference Result 999 states and 2604 transitions. [2022-03-03 18:38:55,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:55,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:55,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:55,985 INFO L225 Difference]: With dead ends: 999 [2022-03-03 18:38:55,985 INFO L226 Difference]: Without dead ends: 890 [2022-03-03 18:38:55,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:55,985 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 [2022-03-03 18:38:55,985 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] [2022-03-03 18:38:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-03-03 18:38:55,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 878. [2022-03-03 18:38:55,993 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) [2022-03-03 18:38:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2313 transitions. [2022-03-03 18:38:55,994 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2313 transitions. Word has length 26 [2022-03-03 18:38:55,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:55,994 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 2313 transitions. [2022-03-03 18:38:55,995 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) [2022-03-03 18:38:55,995 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2313 transitions. [2022-03-03 18:38:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:55,996 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:55,996 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] [2022-03-03 18:38:55,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-03 18:38:55,996 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:55,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash -968140131, now seen corresponding path program 309 times [2022-03-03 18:38:55,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:55,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534662741] [2022-03-03 18:38:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:55,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:56,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:56,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:56,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534662741] [2022-03-03 18:38:56,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534662741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:56,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:56,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:56,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858042503] [2022-03-03 18:38:56,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:56,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:56,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:56,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:56,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:56,062 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) [2022-03-03 18:38:56,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:56,268 INFO L93 Difference]: Finished difference Result 1017 states and 2638 transitions. [2022-03-03 18:38:56,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:56,268 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 [2022-03-03 18:38:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:56,269 INFO L225 Difference]: With dead ends: 1017 [2022-03-03 18:38:56,269 INFO L226 Difference]: Without dead ends: 938 [2022-03-03 18:38:56,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:56,270 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 [2022-03-03 18:38:56,270 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] [2022-03-03 18:38:56,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-03-03 18:38:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 878. [2022-03-03 18:38:56,277 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) [2022-03-03 18:38:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2313 transitions. [2022-03-03 18:38:56,278 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2313 transitions. Word has length 26 [2022-03-03 18:38:56,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:56,278 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 2313 transitions. [2022-03-03 18:38:56,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:56,278 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2313 transitions. [2022-03-03 18:38:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:56,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:56,279 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] [2022-03-03 18:38:56,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-03 18:38:56,279 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:56,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:56,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1934682619, now seen corresponding path program 310 times [2022-03-03 18:38:56,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:56,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791756509] [2022-03-03 18:38:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:56,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:56,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:56,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791756509] [2022-03-03 18:38:56,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791756509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:56,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:56,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:56,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096502793] [2022-03-03 18:38:56,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:56,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:56,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:56,343 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) [2022-03-03 18:38:56,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:56,546 INFO L93 Difference]: Finished difference Result 986 states and 2573 transitions. [2022-03-03 18:38:56,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:56,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:56,547 INFO L225 Difference]: With dead ends: 986 [2022-03-03 18:38:56,547 INFO L226 Difference]: Without dead ends: 900 [2022-03-03 18:38:56,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:56,548 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 [2022-03-03 18:38:56,548 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] [2022-03-03 18:38:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-03-03 18:38:56,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 871. [2022-03-03 18:38:56,555 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) [2022-03-03 18:38:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 2296 transitions. [2022-03-03 18:38:56,556 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 2296 transitions. Word has length 26 [2022-03-03 18:38:56,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:56,556 INFO L470 AbstractCegarLoop]: Abstraction has 871 states and 2296 transitions. [2022-03-03 18:38:56,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 2296 transitions. [2022-03-03 18:38:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:56,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:56,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:56,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-03 18:38:56,557 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:56,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:56,557 INFO L85 PathProgramCache]: Analyzing trace with hash -718854477, now seen corresponding path program 311 times [2022-03-03 18:38:56,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:56,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444609083] [2022-03-03 18:38:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:56,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:56,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:56,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444609083] [2022-03-03 18:38:56,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444609083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:56,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:56,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:56,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974778375] [2022-03-03 18:38:56,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:56,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:56,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:56,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:56,633 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) [2022-03-03 18:38:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:56,856 INFO L93 Difference]: Finished difference Result 1044 states and 2714 transitions. [2022-03-03 18:38:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:56,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:56,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:56,858 INFO L225 Difference]: With dead ends: 1044 [2022-03-03 18:38:56,858 INFO L226 Difference]: Without dead ends: 907 [2022-03-03 18:38:56,858 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 [2022-03-03 18:38:56,858 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 [2022-03-03 18:38:56,858 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] [2022-03-03 18:38:56,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-03-03 18:38:56,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 883. [2022-03-03 18:38:56,865 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) [2022-03-03 18:38:56,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 2316 transitions. [2022-03-03 18:38:56,867 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 2316 transitions. Word has length 26 [2022-03-03 18:38:56,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:56,867 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 2316 transitions. [2022-03-03 18:38:56,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:56,867 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 2316 transitions. [2022-03-03 18:38:56,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:56,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:56,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:56,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-03 18:38:56,868 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:56,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:56,868 INFO L85 PathProgramCache]: Analyzing trace with hash -219428363, now seen corresponding path program 312 times [2022-03-03 18:38:56,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:56,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081433332] [2022-03-03 18:38:56,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:56,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:56,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:56,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081433332] [2022-03-03 18:38:56,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081433332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:56,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:56,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:56,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122471049] [2022-03-03 18:38:56,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:56,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:56,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:56,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:56,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:56,930 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) [2022-03-03 18:38:57,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:57,155 INFO L93 Difference]: Finished difference Result 1036 states and 2690 transitions. [2022-03-03 18:38:57,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:57,156 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 [2022-03-03 18:38:57,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:57,157 INFO L225 Difference]: With dead ends: 1036 [2022-03-03 18:38:57,157 INFO L226 Difference]: Without dead ends: 910 [2022-03-03 18:38:57,157 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 [2022-03-03 18:38:57,157 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 [2022-03-03 18:38:57,157 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] [2022-03-03 18:38:57,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-03-03 18:38:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 896. [2022-03-03 18:38:57,165 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) [2022-03-03 18:38:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 2337 transitions. [2022-03-03 18:38:57,166 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 2337 transitions. Word has length 26 [2022-03-03 18:38:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:57,166 INFO L470 AbstractCegarLoop]: Abstraction has 896 states and 2337 transitions. [2022-03-03 18:38:57,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:57,166 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 2337 transitions. [2022-03-03 18:38:57,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:57,167 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:57,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:57,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-03 18:38:57,167 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:57,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash 701147603, now seen corresponding path program 313 times [2022-03-03 18:38:57,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:57,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541006741] [2022-03-03 18:38:57,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:57,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:57,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:57,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541006741] [2022-03-03 18:38:57,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541006741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:57,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:57,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:57,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369882980] [2022-03-03 18:38:57,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:57,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:57,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:57,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:57,238 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) [2022-03-03 18:38:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:57,467 INFO L93 Difference]: Finished difference Result 1048 states and 2702 transitions. [2022-03-03 18:38:57,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:57,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:57,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:57,469 INFO L225 Difference]: With dead ends: 1048 [2022-03-03 18:38:57,469 INFO L226 Difference]: Without dead ends: 914 [2022-03-03 18:38:57,469 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 [2022-03-03 18:38:57,469 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 [2022-03-03 18:38:57,469 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] [2022-03-03 18:38:57,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-03-03 18:38:57,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 884. [2022-03-03 18:38:57,480 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) [2022-03-03 18:38:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2305 transitions. [2022-03-03 18:38:57,481 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2305 transitions. Word has length 26 [2022-03-03 18:38:57,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:57,482 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2305 transitions. [2022-03-03 18:38:57,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:57,482 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2305 transitions. [2022-03-03 18:38:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:57,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:57,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:57,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-03 18:38:57,483 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:57,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:57,483 INFO L85 PathProgramCache]: Analyzing trace with hash -40973687, now seen corresponding path program 314 times [2022-03-03 18:38:57,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:57,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055107763] [2022-03-03 18:38:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:57,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:57,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:57,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055107763] [2022-03-03 18:38:57,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055107763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:57,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:57,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:57,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080784225] [2022-03-03 18:38:57,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:57,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:57,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:57,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:57,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:57,546 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) [2022-03-03 18:38:57,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:57,769 INFO L93 Difference]: Finished difference Result 1011 states and 2623 transitions. [2022-03-03 18:38:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:57,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:57,771 INFO L225 Difference]: With dead ends: 1011 [2022-03-03 18:38:57,771 INFO L226 Difference]: Without dead ends: 865 [2022-03-03 18:38:57,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:57,771 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 [2022-03-03 18:38:57,771 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] [2022-03-03 18:38:57,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-03-03 18:38:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 845. [2022-03-03 18:38:57,778 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) [2022-03-03 18:38:57,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 2216 transitions. [2022-03-03 18:38:57,779 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 2216 transitions. Word has length 26 [2022-03-03 18:38:57,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:57,779 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 2216 transitions. [2022-03-03 18:38:57,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:57,780 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 2216 transitions. [2022-03-03 18:38:57,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:57,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:57,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:57,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-03 18:38:57,781 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:57,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash 164441119, now seen corresponding path program 315 times [2022-03-03 18:38:57,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:57,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705966909] [2022-03-03 18:38:57,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:57,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:57,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:57,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705966909] [2022-03-03 18:38:57,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705966909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:57,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:57,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:38:57,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129150893] [2022-03-03 18:38:57,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:57,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:38:57,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:57,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:38:57,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:38:57,836 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) [2022-03-03 18:38:57,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:57,995 INFO L93 Difference]: Finished difference Result 978 states and 2521 transitions. [2022-03-03 18:38:57,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:38:57,995 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 [2022-03-03 18:38:57,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:57,997 INFO L225 Difference]: With dead ends: 978 [2022-03-03 18:38:57,997 INFO L226 Difference]: Without dead ends: 883 [2022-03-03 18:38:57,997 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 [2022-03-03 18:38:57,997 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 [2022-03-03 18:38:57,997 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] [2022-03-03 18:38:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-03 18:38:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 845. [2022-03-03 18:38:58,004 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) [2022-03-03 18:38:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 2212 transitions. [2022-03-03 18:38:58,005 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 2212 transitions. Word has length 26 [2022-03-03 18:38:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:58,006 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 2212 transitions. [2022-03-03 18:38:58,006 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) [2022-03-03 18:38:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 2212 transitions. [2022-03-03 18:38:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:58,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:58,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:58,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-03 18:38:58,007 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:58,007 INFO L85 PathProgramCache]: Analyzing trace with hash 839941661, now seen corresponding path program 316 times [2022-03-03 18:38:58,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:58,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058885749] [2022-03-03 18:38:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:58,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:58,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:58,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058885749] [2022-03-03 18:38:58,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058885749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:58,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:58,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:58,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617007326] [2022-03-03 18:38:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:58,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:58,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:58,071 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) [2022-03-03 18:38:58,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:58,279 INFO L93 Difference]: Finished difference Result 986 states and 2546 transitions. [2022-03-03 18:38:58,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:58,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:58,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:58,281 INFO L225 Difference]: With dead ends: 986 [2022-03-03 18:38:58,281 INFO L226 Difference]: Without dead ends: 911 [2022-03-03 18:38:58,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:58,281 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 [2022-03-03 18:38:58,281 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] [2022-03-03 18:38:58,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2022-03-03 18:38:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 857. [2022-03-03 18:38:58,289 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) [2022-03-03 18:38:58,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 2235 transitions. [2022-03-03 18:38:58,290 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 2235 transitions. Word has length 26 [2022-03-03 18:38:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:58,290 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 2235 transitions. [2022-03-03 18:38:58,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 2235 transitions. [2022-03-03 18:38:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:58,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:58,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:58,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-03 18:38:58,291 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:58,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:58,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1096359265, now seen corresponding path program 317 times [2022-03-03 18:38:58,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:58,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536429608] [2022-03-03 18:38:58,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:58,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:58,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:58,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536429608] [2022-03-03 18:38:58,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536429608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:58,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:58,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:58,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761885053] [2022-03-03 18:38:58,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:58,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:58,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:58,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:58,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:58,360 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) [2022-03-03 18:38:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:58,583 INFO L93 Difference]: Finished difference Result 988 states and 2567 transitions. [2022-03-03 18:38:58,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:58,584 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 [2022-03-03 18:38:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:58,585 INFO L225 Difference]: With dead ends: 988 [2022-03-03 18:38:58,585 INFO L226 Difference]: Without dead ends: 883 [2022-03-03 18:38:58,585 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 [2022-03-03 18:38:58,585 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 [2022-03-03 18:38:58,585 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] [2022-03-03 18:38:58,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-03 18:38:58,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 852. [2022-03-03 18:38:58,593 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) [2022-03-03 18:38:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 2215 transitions. [2022-03-03 18:38:58,594 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 2215 transitions. Word has length 26 [2022-03-03 18:38:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:58,594 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 2215 transitions. [2022-03-03 18:38:58,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 2215 transitions. [2022-03-03 18:38:58,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:58,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:58,595 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] [2022-03-03 18:38:58,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-03 18:38:58,595 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:58,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1753522787, now seen corresponding path program 318 times [2022-03-03 18:38:58,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:58,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619732299] [2022-03-03 18:38:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:58,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:58,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:58,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619732299] [2022-03-03 18:38:58,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619732299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:58,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:58,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:58,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841503991] [2022-03-03 18:38:58,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:58,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:58,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:58,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:58,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:58,663 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) [2022-03-03 18:38:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:58,869 INFO L93 Difference]: Finished difference Result 953 states and 2465 transitions. [2022-03-03 18:38:58,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:58,869 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 [2022-03-03 18:38:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:58,871 INFO L225 Difference]: With dead ends: 953 [2022-03-03 18:38:58,871 INFO L226 Difference]: Without dead ends: 872 [2022-03-03 18:38:58,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:58,871 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 [2022-03-03 18:38:58,871 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] [2022-03-03 18:38:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-03-03 18:38:58,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 856. [2022-03-03 18:38:58,878 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) [2022-03-03 18:38:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 2224 transitions. [2022-03-03 18:38:58,879 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 2224 transitions. Word has length 26 [2022-03-03 18:38:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:58,879 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 2224 transitions. [2022-03-03 18:38:58,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 2224 transitions. [2022-03-03 18:38:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:58,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:58,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:58,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-03 18:38:58,880 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:58,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:58,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1212878587, now seen corresponding path program 319 times [2022-03-03 18:38:58,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:58,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467753615] [2022-03-03 18:38:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:58,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:58,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:58,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467753615] [2022-03-03 18:38:58,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467753615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:58,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:58,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:58,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721833048] [2022-03-03 18:38:58,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:58,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:58,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:58,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:58,944 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) [2022-03-03 18:38:59,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:59,169 INFO L93 Difference]: Finished difference Result 967 states and 2502 transitions. [2022-03-03 18:38:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:59,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:38:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:59,171 INFO L225 Difference]: With dead ends: 967 [2022-03-03 18:38:59,171 INFO L226 Difference]: Without dead ends: 864 [2022-03-03 18:38:59,171 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 [2022-03-03 18:38:59,171 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 [2022-03-03 18:38:59,171 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] [2022-03-03 18:38:59,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-03-03 18:38:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 853. [2022-03-03 18:38:59,183 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) [2022-03-03 18:38:59,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 2218 transitions. [2022-03-03 18:38:59,184 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 2218 transitions. Word has length 26 [2022-03-03 18:38:59,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:59,184 INFO L470 AbstractCegarLoop]: Abstraction has 853 states and 2218 transitions. [2022-03-03 18:38:59,184 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) [2022-03-03 18:38:59,184 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 2218 transitions. [2022-03-03 18:38:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:59,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:59,185 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] [2022-03-03 18:38:59,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-03 18:38:59,185 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:59,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:59,186 INFO L85 PathProgramCache]: Analyzing trace with hash 990239231, now seen corresponding path program 320 times [2022-03-03 18:38:59,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:59,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315647810] [2022-03-03 18:38:59,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:59,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:59,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:59,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315647810] [2022-03-03 18:38:59,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315647810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:59,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:59,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:59,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400798531] [2022-03-03 18:38:59,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:59,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:59,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:59,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:59,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:59,249 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) [2022-03-03 18:38:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:59,453 INFO L93 Difference]: Finished difference Result 988 states and 2530 transitions. [2022-03-03 18:38:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:59,453 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 [2022-03-03 18:38:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:59,454 INFO L225 Difference]: With dead ends: 988 [2022-03-03 18:38:59,454 INFO L226 Difference]: Without dead ends: 905 [2022-03-03 18:38:59,454 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 [2022-03-03 18:38:59,455 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 [2022-03-03 18:38:59,455 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] [2022-03-03 18:38:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-03-03 18:38:59,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 849. [2022-03-03 18:38:59,462 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) [2022-03-03 18:38:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 2206 transitions. [2022-03-03 18:38:59,463 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 2206 transitions. Word has length 26 [2022-03-03 18:38:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:59,463 INFO L470 AbstractCegarLoop]: Abstraction has 849 states and 2206 transitions. [2022-03-03 18:38:59,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 2206 transitions. [2022-03-03 18:38:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:59,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:59,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:59,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-03 18:38:59,464 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:59,465 INFO L85 PathProgramCache]: Analyzing trace with hash -401905315, now seen corresponding path program 321 times [2022-03-03 18:38:59,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:59,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816062975] [2022-03-03 18:38:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:59,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:59,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:59,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816062975] [2022-03-03 18:38:59,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816062975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:59,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:59,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:59,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966657201] [2022-03-03 18:38:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:59,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:59,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:59,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:59,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:59,529 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) [2022-03-03 18:38:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:59,738 INFO L93 Difference]: Finished difference Result 951 states and 2457 transitions. [2022-03-03 18:38:59,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:38:59,738 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 [2022-03-03 18:38:59,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:59,740 INFO L225 Difference]: With dead ends: 951 [2022-03-03 18:38:59,740 INFO L226 Difference]: Without dead ends: 868 [2022-03-03 18:38:59,740 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 [2022-03-03 18:38:59,740 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 [2022-03-03 18:38:59,740 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] [2022-03-03 18:38:59,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-03-03 18:38:59,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 848. [2022-03-03 18:38:59,747 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) [2022-03-03 18:38:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 2201 transitions. [2022-03-03 18:38:59,748 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 2201 transitions. Word has length 26 [2022-03-03 18:38:59,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:59,748 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 2201 transitions. [2022-03-03 18:38:59,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:59,748 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 2201 transitions. [2022-03-03 18:38:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:59,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:59,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:59,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-03 18:38:59,750 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:38:59,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:59,750 INFO L85 PathProgramCache]: Analyzing trace with hash -352542491, now seen corresponding path program 322 times [2022-03-03 18:38:59,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:59,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756923851] [2022-03-03 18:38:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:59,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:59,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:59,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756923851] [2022-03-03 18:38:59,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756923851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:59,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:59,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:38:59,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942422640] [2022-03-03 18:38:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:59,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:38:59,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:38:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:38:59,828 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) [2022-03-03 18:39:00,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:00,056 INFO L93 Difference]: Finished difference Result 963 states and 2484 transitions. [2022-03-03 18:39:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:00,056 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 [2022-03-03 18:39:00,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:00,057 INFO L225 Difference]: With dead ends: 963 [2022-03-03 18:39:00,058 INFO L226 Difference]: Without dead ends: 853 [2022-03-03 18:39:00,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:00,058 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 49 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:00,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 237 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:39:00,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-03-03 18:39:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 831. [2022-03-03 18:39:00,065 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) [2022-03-03 18:39:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 2161 transitions. [2022-03-03 18:39:00,066 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 2161 transitions. Word has length 26 [2022-03-03 18:39:00,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:00,066 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 2161 transitions. [2022-03-03 18:39:00,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 2161 transitions. [2022-03-03 18:39:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:00,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:00,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:00,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-03 18:39:00,067 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:00,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:00,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1480666419, now seen corresponding path program 323 times [2022-03-03 18:39:00,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:00,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060837852] [2022-03-03 18:39:00,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:00,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:00,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:00,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060837852] [2022-03-03 18:39:00,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060837852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:00,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:00,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:00,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684229604] [2022-03-03 18:39:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:00,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:00,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:00,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:00,130 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) [2022-03-03 18:39:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:00,337 INFO L93 Difference]: Finished difference Result 964 states and 2472 transitions. [2022-03-03 18:39:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:00,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:00,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:00,339 INFO L225 Difference]: With dead ends: 964 [2022-03-03 18:39:00,339 INFO L226 Difference]: Without dead ends: 883 [2022-03-03 18:39:00,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:00,339 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 [2022-03-03 18:39:00,339 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] [2022-03-03 18:39:00,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-03 18:39:00,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 827. [2022-03-03 18:39:00,346 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) [2022-03-03 18:39:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2152 transitions. [2022-03-03 18:39:00,347 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2152 transitions. Word has length 26 [2022-03-03 18:39:00,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:00,347 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 2152 transitions. [2022-03-03 18:39:00,347 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) [2022-03-03 18:39:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2152 transitions. [2022-03-03 18:39:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:00,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:00,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:00,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-03 18:39:00,348 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:00,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash 152100497, now seen corresponding path program 324 times [2022-03-03 18:39:00,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:00,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040633644] [2022-03-03 18:39:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:00,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:00,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040633644] [2022-03-03 18:39:00,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040633644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:00,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:00,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:00,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382676153] [2022-03-03 18:39:00,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:00,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:00,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:00,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:00,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:00,423 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) [2022-03-03 18:39:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:00,658 INFO L93 Difference]: Finished difference Result 932 states and 2411 transitions. [2022-03-03 18:39:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:00,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:00,659 INFO L225 Difference]: With dead ends: 932 [2022-03-03 18:39:00,659 INFO L226 Difference]: Without dead ends: 823 [2022-03-03 18:39:00,660 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 [2022-03-03 18:39:00,660 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 [2022-03-03 18:39:00,660 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] [2022-03-03 18:39:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-03-03 18:39:00,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 803. [2022-03-03 18:39:00,667 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) [2022-03-03 18:39:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 2097 transitions. [2022-03-03 18:39:00,668 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 2097 transitions. Word has length 26 [2022-03-03 18:39:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:00,668 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 2097 transitions. [2022-03-03 18:39:00,668 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) [2022-03-03 18:39:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 2097 transitions. [2022-03-03 18:39:00,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:00,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:00,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:00,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-03 18:39:00,669 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:00,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:00,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1983661419, now seen corresponding path program 325 times [2022-03-03 18:39:00,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:00,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389982749] [2022-03-03 18:39:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:00,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:00,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:00,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389982749] [2022-03-03 18:39:00,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389982749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:00,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:00,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:00,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812314237] [2022-03-03 18:39:00,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:00,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:00,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:00,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:00,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:00,735 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) [2022-03-03 18:39:00,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:00,932 INFO L93 Difference]: Finished difference Result 925 states and 2372 transitions. [2022-03-03 18:39:00,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:00,933 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:00,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:00,934 INFO L225 Difference]: With dead ends: 925 [2022-03-03 18:39:00,934 INFO L226 Difference]: Without dead ends: 828 [2022-03-03 18:39:00,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:00,934 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 [2022-03-03 18:39:00,934 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] [2022-03-03 18:39:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-03-03 18:39:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 788. [2022-03-03 18:39:00,940 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) [2022-03-03 18:39:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2053 transitions. [2022-03-03 18:39:00,941 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2053 transitions. Word has length 26 [2022-03-03 18:39:00,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:00,941 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2053 transitions. [2022-03-03 18:39:00,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2053 transitions. [2022-03-03 18:39:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:00,942 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:00,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:00,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-03 18:39:00,942 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1032379477, now seen corresponding path program 326 times [2022-03-03 18:39:00,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:00,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721233360] [2022-03-03 18:39:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:00,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:00,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721233360] [2022-03-03 18:39:00,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721233360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:00,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:00,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:00,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29668770] [2022-03-03 18:39:00,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:00,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:39:00,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:00,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:39:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:00,998 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) [2022-03-03 18:39:01,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:01,158 INFO L93 Difference]: Finished difference Result 919 states and 2353 transitions. [2022-03-03 18:39:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:39:01,159 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 [2022-03-03 18:39:01,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:01,160 INFO L225 Difference]: With dead ends: 919 [2022-03-03 18:39:01,160 INFO L226 Difference]: Without dead ends: 826 [2022-03-03 18:39:01,160 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 [2022-03-03 18:39:01,160 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 [2022-03-03 18:39:01,160 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] [2022-03-03 18:39:01,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-03-03 18:39:01,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 788. [2022-03-03 18:39:01,167 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) [2022-03-03 18:39:01,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2049 transitions. [2022-03-03 18:39:01,168 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2049 transitions. Word has length 26 [2022-03-03 18:39:01,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:01,169 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2049 transitions. [2022-03-03 18:39:01,169 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) [2022-03-03 18:39:01,169 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2049 transitions. [2022-03-03 18:39:01,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:01,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:01,170 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] [2022-03-03 18:39:01,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-03 18:39:01,170 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:01,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:01,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1326286893, now seen corresponding path program 327 times [2022-03-03 18:39:01,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:01,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097545846] [2022-03-03 18:39:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:01,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:01,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:01,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097545846] [2022-03-03 18:39:01,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097545846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:01,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:01,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:01,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84974844] [2022-03-03 18:39:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:01,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:01,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:01,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:01,233 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) [2022-03-03 18:39:01,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:01,439 INFO L93 Difference]: Finished difference Result 935 states and 2392 transitions. [2022-03-03 18:39:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:01,439 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 [2022-03-03 18:39:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:01,440 INFO L225 Difference]: With dead ends: 935 [2022-03-03 18:39:01,440 INFO L226 Difference]: Without dead ends: 666 [2022-03-03 18:39:01,440 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 [2022-03-03 18:39:01,440 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 [2022-03-03 18:39:01,441 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] [2022-03-03 18:39:01,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-03-03 18:39:01,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 594. [2022-03-03 18:39:01,445 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) [2022-03-03 18:39:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1515 transitions. [2022-03-03 18:39:01,446 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1515 transitions. Word has length 26 [2022-03-03 18:39:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:01,446 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 1515 transitions. [2022-03-03 18:39:01,446 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) [2022-03-03 18:39:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1515 transitions. [2022-03-03 18:39:01,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:01,447 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:01,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:01,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-03 18:39:01,447 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:01,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:01,447 INFO L85 PathProgramCache]: Analyzing trace with hash -150994965, now seen corresponding path program 328 times [2022-03-03 18:39:01,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:01,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554750128] [2022-03-03 18:39:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:01,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:01,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:01,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:01,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554750128] [2022-03-03 18:39:01,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554750128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:01,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:01,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:01,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681115223] [2022-03-03 18:39:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:01,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:01,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:01,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:01,510 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) [2022-03-03 18:39:01,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:01,708 INFO L93 Difference]: Finished difference Result 734 states and 1848 transitions. [2022-03-03 18:39:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:01,708 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:01,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:01,709 INFO L225 Difference]: With dead ends: 734 [2022-03-03 18:39:01,709 INFO L226 Difference]: Without dead ends: 633 [2022-03-03 18:39:01,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:01,709 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 [2022-03-03 18:39:01,709 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] [2022-03-03 18:39:01,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-03-03 18:39:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 570. [2022-03-03 18:39:01,714 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) [2022-03-03 18:39:01,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1457 transitions. [2022-03-03 18:39:01,715 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1457 transitions. Word has length 26 [2022-03-03 18:39:01,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:01,715 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1457 transitions. [2022-03-03 18:39:01,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:01,715 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1457 transitions. [2022-03-03 18:39:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:01,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:01,716 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] [2022-03-03 18:39:01,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-03 18:39:01,716 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:01,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2087295891, now seen corresponding path program 329 times [2022-03-03 18:39:01,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:01,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292228113] [2022-03-03 18:39:01,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:01,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:01,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:01,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292228113] [2022-03-03 18:39:01,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292228113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:01,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:01,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:01,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456189187] [2022-03-03 18:39:01,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:01,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:01,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:01,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:01,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:01,780 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) [2022-03-03 18:39:02,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:02,003 INFO L93 Difference]: Finished difference Result 694 states and 1767 transitions. [2022-03-03 18:39:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:02,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:02,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:02,005 INFO L225 Difference]: With dead ends: 694 [2022-03-03 18:39:02,005 INFO L226 Difference]: Without dead ends: 603 [2022-03-03 18:39:02,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:02,005 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 [2022-03-03 18:39:02,005 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] [2022-03-03 18:39:02,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-03-03 18:39:02,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 587. [2022-03-03 18:39:02,010 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) [2022-03-03 18:39:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 1499 transitions. [2022-03-03 18:39:02,010 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 1499 transitions. Word has length 26 [2022-03-03 18:39:02,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:02,011 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 1499 transitions. [2022-03-03 18:39:02,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:02,011 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 1499 transitions. [2022-03-03 18:39:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:02,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:02,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:02,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-03 18:39:02,011 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:02,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:02,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1288490283, now seen corresponding path program 330 times [2022-03-03 18:39:02,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:02,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773832203] [2022-03-03 18:39:02,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:02,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:02,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:02,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773832203] [2022-03-03 18:39:02,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773832203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:02,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:02,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:02,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817692075] [2022-03-03 18:39:02,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:02,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:02,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:02,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:02,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:02,076 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) [2022-03-03 18:39:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:02,299 INFO L93 Difference]: Finished difference Result 696 states and 1770 transitions. [2022-03-03 18:39:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:02,301 INFO L225 Difference]: With dead ends: 696 [2022-03-03 18:39:02,301 INFO L226 Difference]: Without dead ends: 600 [2022-03-03 18:39:02,301 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 [2022-03-03 18:39:02,301 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 [2022-03-03 18:39:02,301 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] [2022-03-03 18:39:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-03 18:39:02,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 582. [2022-03-03 18:39:02,306 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) [2022-03-03 18:39:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 1485 transitions. [2022-03-03 18:39:02,307 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 1485 transitions. Word has length 26 [2022-03-03 18:39:02,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:02,307 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 1485 transitions. [2022-03-03 18:39:02,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:02,307 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 1485 transitions. [2022-03-03 18:39:02,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:02,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:02,308 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] [2022-03-03 18:39:02,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-03 18:39:02,308 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:02,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:02,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2109856655, now seen corresponding path program 331 times [2022-03-03 18:39:02,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:02,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399517385] [2022-03-03 18:39:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:02,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:02,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:02,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399517385] [2022-03-03 18:39:02,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399517385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:02,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:02,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:02,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138948123] [2022-03-03 18:39:02,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:02,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:02,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:02,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:02,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:02,370 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) [2022-03-03 18:39:02,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:02,593 INFO L93 Difference]: Finished difference Result 709 states and 1796 transitions. [2022-03-03 18:39:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:02,593 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 [2022-03-03 18:39:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:02,594 INFO L225 Difference]: With dead ends: 709 [2022-03-03 18:39:02,594 INFO L226 Difference]: Without dead ends: 586 [2022-03-03 18:39:02,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:02,595 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 [2022-03-03 18:39:02,595 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] [2022-03-03 18:39:02,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-03-03 18:39:02,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 570. [2022-03-03 18:39:02,599 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) [2022-03-03 18:39:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1454 transitions. [2022-03-03 18:39:02,600 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1454 transitions. Word has length 26 [2022-03-03 18:39:02,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:02,600 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1454 transitions. [2022-03-03 18:39:02,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1454 transitions. [2022-03-03 18:39:02,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:02,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:02,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:02,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-03 18:39:02,601 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:02,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:02,601 INFO L85 PathProgramCache]: Analyzing trace with hash -359076983, now seen corresponding path program 332 times [2022-03-03 18:39:02,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:02,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368828688] [2022-03-03 18:39:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:02,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:02,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:02,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368828688] [2022-03-03 18:39:02,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368828688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:02,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:02,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:02,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585168086] [2022-03-03 18:39:02,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:02,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:02,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:02,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:02,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:02,664 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) [2022-03-03 18:39:02,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:02,866 INFO L93 Difference]: Finished difference Result 694 states and 1757 transitions. [2022-03-03 18:39:02,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:02,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:02,868 INFO L225 Difference]: With dead ends: 694 [2022-03-03 18:39:02,868 INFO L226 Difference]: Without dead ends: 613 [2022-03-03 18:39:02,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:02,868 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 [2022-03-03 18:39:02,868 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] [2022-03-03 18:39:02,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-03 18:39:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 569. [2022-03-03 18:39:02,873 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) [2022-03-03 18:39:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 1452 transitions. [2022-03-03 18:39:02,873 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 1452 transitions. Word has length 26 [2022-03-03 18:39:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:02,873 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 1452 transitions. [2022-03-03 18:39:02,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 1452 transitions. [2022-03-03 18:39:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:02,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:02,874 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] [2022-03-03 18:39:02,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-03 18:39:02,874 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1999589387, now seen corresponding path program 333 times [2022-03-03 18:39:02,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:02,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099389191] [2022-03-03 18:39:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:02,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:02,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099389191] [2022-03-03 18:39:02,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099389191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:02,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:02,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:02,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259635286] [2022-03-03 18:39:02,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:02,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:02,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:02,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:02,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:02,938 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) [2022-03-03 18:39:03,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:03,161 INFO L93 Difference]: Finished difference Result 696 states and 1757 transitions. [2022-03-03 18:39:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:03,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:03,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:03,163 INFO L225 Difference]: With dead ends: 696 [2022-03-03 18:39:03,163 INFO L226 Difference]: Without dead ends: 605 [2022-03-03 18:39:03,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:03,163 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 [2022-03-03 18:39:03,163 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] [2022-03-03 18:39:03,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-03-03 18:39:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 576. [2022-03-03 18:39:03,168 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) [2022-03-03 18:39:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1469 transitions. [2022-03-03 18:39:03,168 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1469 transitions. Word has length 26 [2022-03-03 18:39:03,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:03,168 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1469 transitions. [2022-03-03 18:39:03,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1469 transitions. [2022-03-03 18:39:03,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:03,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:03,169 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] [2022-03-03 18:39:03,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-03 18:39:03,169 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:03,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:03,169 INFO L85 PathProgramCache]: Analyzing trace with hash 697098483, now seen corresponding path program 334 times [2022-03-03 18:39:03,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:03,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039933444] [2022-03-03 18:39:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:03,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:03,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:03,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039933444] [2022-03-03 18:39:03,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039933444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:03,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:03,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:03,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492091902] [2022-03-03 18:39:03,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:03,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:03,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:03,233 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) [2022-03-03 18:39:03,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:03,445 INFO L93 Difference]: Finished difference Result 692 states and 1748 transitions. [2022-03-03 18:39:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:03,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:03,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:03,447 INFO L225 Difference]: With dead ends: 692 [2022-03-03 18:39:03,447 INFO L226 Difference]: Without dead ends: 599 [2022-03-03 18:39:03,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:03,447 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 [2022-03-03 18:39:03,447 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] [2022-03-03 18:39:03,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-03-03 18:39:03,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 572. [2022-03-03 18:39:03,452 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) [2022-03-03 18:39:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1459 transitions. [2022-03-03 18:39:03,452 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1459 transitions. Word has length 26 [2022-03-03 18:39:03,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:03,452 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 1459 transitions. [2022-03-03 18:39:03,452 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) [2022-03-03 18:39:03,453 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1459 transitions. [2022-03-03 18:39:03,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:03,453 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:03,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:03,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-03 18:39:03,453 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:03,453 INFO L85 PathProgramCache]: Analyzing trace with hash -565884949, now seen corresponding path program 335 times [2022-03-03 18:39:03,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:03,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662143441] [2022-03-03 18:39:03,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:03,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:03,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:03,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662143441] [2022-03-03 18:39:03,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662143441] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:03,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:03,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:03,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171306946] [2022-03-03 18:39:03,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:03,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:03,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:03,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:03,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:03,518 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) [2022-03-03 18:39:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:03,721 INFO L93 Difference]: Finished difference Result 712 states and 1795 transitions. [2022-03-03 18:39:03,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:03,721 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:03,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:03,722 INFO L225 Difference]: With dead ends: 712 [2022-03-03 18:39:03,722 INFO L226 Difference]: Without dead ends: 631 [2022-03-03 18:39:03,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:03,723 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 [2022-03-03 18:39:03,723 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] [2022-03-03 18:39:03,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-03-03 18:39:03,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 574. [2022-03-03 18:39:03,727 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) [2022-03-03 18:39:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1469 transitions. [2022-03-03 18:39:03,728 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1469 transitions. Word has length 26 [2022-03-03 18:39:03,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:03,728 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 1469 transitions. [2022-03-03 18:39:03,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:03,728 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1469 transitions. [2022-03-03 18:39:03,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:03,729 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:03,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:03,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-03 18:39:03,729 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:03,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:03,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1792781421, now seen corresponding path program 336 times [2022-03-03 18:39:03,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:03,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214808273] [2022-03-03 18:39:03,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:03,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:03,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:03,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214808273] [2022-03-03 18:39:03,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214808273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:03,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:03,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:03,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889227260] [2022-03-03 18:39:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:03,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:03,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:03,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:03,793 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) [2022-03-03 18:39:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:04,008 INFO L93 Difference]: Finished difference Result 690 states and 1756 transitions. [2022-03-03 18:39:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:04,009 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 [2022-03-03 18:39:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:04,010 INFO L225 Difference]: With dead ends: 690 [2022-03-03 18:39:04,010 INFO L226 Difference]: Without dead ends: 599 [2022-03-03 18:39:04,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:04,010 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 [2022-03-03 18:39:04,010 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] [2022-03-03 18:39:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-03-03 18:39:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 577. [2022-03-03 18:39:04,014 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) [2022-03-03 18:39:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1475 transitions. [2022-03-03 18:39:04,015 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1475 transitions. Word has length 26 [2022-03-03 18:39:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:04,015 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 1475 transitions. [2022-03-03 18:39:04,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1475 transitions. [2022-03-03 18:39:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:04,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:04,016 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] [2022-03-03 18:39:04,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-03 18:39:04,016 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1135617899, now seen corresponding path program 337 times [2022-03-03 18:39:04,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:04,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338452083] [2022-03-03 18:39:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:04,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:04,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:04,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338452083] [2022-03-03 18:39:04,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338452083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:04,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:04,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:04,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802681512] [2022-03-03 18:39:04,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:04,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:04,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:04,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:04,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:04,102 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) [2022-03-03 18:39:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:04,300 INFO L93 Difference]: Finished difference Result 686 states and 1730 transitions. [2022-03-03 18:39:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:04,301 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 [2022-03-03 18:39:04,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:04,302 INFO L225 Difference]: With dead ends: 686 [2022-03-03 18:39:04,302 INFO L226 Difference]: Without dead ends: 597 [2022-03-03 18:39:04,302 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 [2022-03-03 18:39:04,302 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 [2022-03-03 18:39:04,302 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] [2022-03-03 18:39:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-03 18:39:04,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 575. [2022-03-03 18:39:04,307 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) [2022-03-03 18:39:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1467 transitions. [2022-03-03 18:39:04,307 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1467 transitions. Word has length 26 [2022-03-03 18:39:04,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:04,308 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 1467 transitions. [2022-03-03 18:39:04,308 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) [2022-03-03 18:39:04,308 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1467 transitions. [2022-03-03 18:39:04,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:04,308 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:04,308 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] [2022-03-03 18:39:04,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-03 18:39:04,308 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:04,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash -192948023, now seen corresponding path program 338 times [2022-03-03 18:39:04,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:04,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132867141] [2022-03-03 18:39:04,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:04,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:04,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:04,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132867141] [2022-03-03 18:39:04,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132867141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:04,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:04,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:04,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759719030] [2022-03-03 18:39:04,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:04,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:04,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:04,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:04,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:04,372 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) [2022-03-03 18:39:04,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:04,589 INFO L93 Difference]: Finished difference Result 678 states and 1726 transitions. [2022-03-03 18:39:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:04,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:04,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:04,590 INFO L225 Difference]: With dead ends: 678 [2022-03-03 18:39:04,590 INFO L226 Difference]: Without dead ends: 582 [2022-03-03 18:39:04,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:04,590 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 [2022-03-03 18:39:04,590 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] [2022-03-03 18:39:04,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-03-03 18:39:04,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 570. [2022-03-03 18:39:04,598 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) [2022-03-03 18:39:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1455 transitions. [2022-03-03 18:39:04,598 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1455 transitions. Word has length 26 [2022-03-03 18:39:04,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:04,598 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1455 transitions. [2022-03-03 18:39:04,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1455 transitions. [2022-03-03 18:39:04,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:04,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:04,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:04,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-03 18:39:04,599 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:04,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:04,600 INFO L85 PathProgramCache]: Analyzing trace with hash -366224555, now seen corresponding path program 339 times [2022-03-03 18:39:04,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:04,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059789034] [2022-03-03 18:39:04,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:04,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:04,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:04,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:04,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059789034] [2022-03-03 18:39:04,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059789034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:04,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:04,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:04,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415137709] [2022-03-03 18:39:04,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:04,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:04,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:04,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:04,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:04,664 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) [2022-03-03 18:39:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:04,881 INFO L93 Difference]: Finished difference Result 701 states and 1771 transitions. [2022-03-03 18:39:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:04,882 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 [2022-03-03 18:39:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:04,883 INFO L225 Difference]: With dead ends: 701 [2022-03-03 18:39:04,883 INFO L226 Difference]: Without dead ends: 610 [2022-03-03 18:39:04,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:04,883 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 [2022-03-03 18:39:04,883 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] [2022-03-03 18:39:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-03-03 18:39:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 585. [2022-03-03 18:39:04,888 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) [2022-03-03 18:39:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1488 transitions. [2022-03-03 18:39:04,888 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1488 transitions. Word has length 26 [2022-03-03 18:39:04,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:04,889 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 1488 transitions. [2022-03-03 18:39:04,889 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) [2022-03-03 18:39:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1488 transitions. [2022-03-03 18:39:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:04,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:04,889 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] [2022-03-03 18:39:04,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-03 18:39:04,889 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:04,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1758369101, now seen corresponding path program 340 times [2022-03-03 18:39:04,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:04,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811411226] [2022-03-03 18:39:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:04,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:04,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:04,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811411226] [2022-03-03 18:39:04,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811411226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:04,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:04,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:04,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765768380] [2022-03-03 18:39:04,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:04,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:04,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:04,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:04,954 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) [2022-03-03 18:39:05,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:05,171 INFO L93 Difference]: Finished difference Result 693 states and 1757 transitions. [2022-03-03 18:39:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:05,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:05,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:05,172 INFO L225 Difference]: With dead ends: 693 [2022-03-03 18:39:05,172 INFO L226 Difference]: Without dead ends: 596 [2022-03-03 18:39:05,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:05,173 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 [2022-03-03 18:39:05,173 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] [2022-03-03 18:39:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-03-03 18:39:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 583. [2022-03-03 18:39:05,177 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) [2022-03-03 18:39:05,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1483 transitions. [2022-03-03 18:39:05,178 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1483 transitions. Word has length 26 [2022-03-03 18:39:05,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:05,178 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1483 transitions. [2022-03-03 18:39:05,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:05,178 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1483 transitions. [2022-03-03 18:39:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:05,179 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:05,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:05,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-03 18:39:05,179 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:05,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:05,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1627750985, now seen corresponding path program 341 times [2022-03-03 18:39:05,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:05,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949525979] [2022-03-03 18:39:05,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:05,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:05,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:05,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949525979] [2022-03-03 18:39:05,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949525979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:05,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:05,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:05,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181408854] [2022-03-03 18:39:05,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:05,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:05,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:05,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:05,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:05,256 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) [2022-03-03 18:39:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:05,483 INFO L93 Difference]: Finished difference Result 728 states and 1837 transitions. [2022-03-03 18:39:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:05,484 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 [2022-03-03 18:39:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:05,485 INFO L225 Difference]: With dead ends: 728 [2022-03-03 18:39:05,485 INFO L226 Difference]: Without dead ends: 613 [2022-03-03 18:39:05,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:05,485 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 [2022-03-03 18:39:05,485 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] [2022-03-03 18:39:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-03 18:39:05,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 583. [2022-03-03 18:39:05,490 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) [2022-03-03 18:39:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1475 transitions. [2022-03-03 18:39:05,491 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1475 transitions. Word has length 26 [2022-03-03 18:39:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:05,491 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1475 transitions. [2022-03-03 18:39:05,491 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) [2022-03-03 18:39:05,491 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1475 transitions. [2022-03-03 18:39:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:05,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:05,491 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] [2022-03-03 18:39:05,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-03 18:39:05,492 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:05,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:05,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1427002645, now seen corresponding path program 342 times [2022-03-03 18:39:05,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:05,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629243097] [2022-03-03 18:39:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:05,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:05,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:05,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629243097] [2022-03-03 18:39:05,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629243097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:05,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:05,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:05,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824653419] [2022-03-03 18:39:05,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:05,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:05,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:05,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:05,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:05,556 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) [2022-03-03 18:39:05,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:05,772 INFO L93 Difference]: Finished difference Result 717 states and 1804 transitions. [2022-03-03 18:39:05,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:05,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:05,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:05,773 INFO L225 Difference]: With dead ends: 717 [2022-03-03 18:39:05,773 INFO L226 Difference]: Without dead ends: 626 [2022-03-03 18:39:05,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:05,774 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 [2022-03-03 18:39:05,774 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] [2022-03-03 18:39:05,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-03-03 18:39:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 583. [2022-03-03 18:39:05,778 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) [2022-03-03 18:39:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1475 transitions. [2022-03-03 18:39:05,779 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1475 transitions. Word has length 26 [2022-03-03 18:39:05,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:05,779 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1475 transitions. [2022-03-03 18:39:05,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1475 transitions. [2022-03-03 18:39:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:05,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:05,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:05,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-03 18:39:05,780 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1475820105, now seen corresponding path program 343 times [2022-03-03 18:39:05,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:05,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363669918] [2022-03-03 18:39:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:05,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:05,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363669918] [2022-03-03 18:39:05,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363669918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:05,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:05,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:05,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135411249] [2022-03-03 18:39:05,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:05,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:05,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:05,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:05,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:05,882 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) [2022-03-03 18:39:06,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:06,110 INFO L93 Difference]: Finished difference Result 697 states and 1755 transitions. [2022-03-03 18:39:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:06,111 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 [2022-03-03 18:39:06,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:06,112 INFO L225 Difference]: With dead ends: 697 [2022-03-03 18:39:06,112 INFO L226 Difference]: Without dead ends: 590 [2022-03-03 18:39:06,112 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 [2022-03-03 18:39:06,112 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 55 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:06,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 272 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:39:06,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-03-03 18:39:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 566. [2022-03-03 18:39:06,116 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) [2022-03-03 18:39:06,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1427 transitions. [2022-03-03 18:39:06,117 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1427 transitions. Word has length 26 [2022-03-03 18:39:06,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:06,117 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1427 transitions. [2022-03-03 18:39:06,117 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) [2022-03-03 18:39:06,117 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1427 transitions. [2022-03-03 18:39:06,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:06,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:06,118 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] [2022-03-03 18:39:06,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-03 18:39:06,118 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:06,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:06,118 INFO L85 PathProgramCache]: Analyzing trace with hash -611678313, now seen corresponding path program 344 times [2022-03-03 18:39:06,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:06,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227630032] [2022-03-03 18:39:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:06,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:06,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227630032] [2022-03-03 18:39:06,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227630032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:06,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:06,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:06,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123157705] [2022-03-03 18:39:06,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:06,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:06,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:06,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:06,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:06,181 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) [2022-03-03 18:39:06,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:06,393 INFO L93 Difference]: Finished difference Result 710 states and 1782 transitions. [2022-03-03 18:39:06,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:06,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:06,394 INFO L225 Difference]: With dead ends: 710 [2022-03-03 18:39:06,394 INFO L226 Difference]: Without dead ends: 593 [2022-03-03 18:39:06,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:06,394 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 [2022-03-03 18:39:06,394 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] [2022-03-03 18:39:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-03-03 18:39:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2022-03-03 18:39:06,399 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) [2022-03-03 18:39:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1481 transitions. [2022-03-03 18:39:06,399 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1481 transitions. Word has length 26 [2022-03-03 18:39:06,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:06,400 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1481 transitions. [2022-03-03 18:39:06,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:06,400 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1481 transitions. [2022-03-03 18:39:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:06,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:06,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:06,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-03 18:39:06,400 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1530859435, now seen corresponding path program 345 times [2022-03-03 18:39:06,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:06,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537303451] [2022-03-03 18:39:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:06,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:06,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:06,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537303451] [2022-03-03 18:39:06,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537303451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:06,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:06,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:06,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783939761] [2022-03-03 18:39:06,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:06,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:06,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:06,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:06,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:06,463 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) [2022-03-03 18:39:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:06,686 INFO L93 Difference]: Finished difference Result 725 states and 1802 transitions. [2022-03-03 18:39:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:06,688 INFO L225 Difference]: With dead ends: 725 [2022-03-03 18:39:06,688 INFO L226 Difference]: Without dead ends: 603 [2022-03-03 18:39:06,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:06,688 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 [2022-03-03 18:39:06,688 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] [2022-03-03 18:39:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-03-03 18:39:06,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 593. [2022-03-03 18:39:06,693 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) [2022-03-03 18:39:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1478 transitions. [2022-03-03 18:39:06,694 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1478 transitions. Word has length 26 [2022-03-03 18:39:06,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:06,694 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1478 transitions. [2022-03-03 18:39:06,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1478 transitions. [2022-03-03 18:39:06,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:06,695 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:06,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:06,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-03 18:39:06,695 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:06,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:06,695 INFO L85 PathProgramCache]: Analyzing trace with hash -634239077, now seen corresponding path program 346 times [2022-03-03 18:39:06,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:06,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434725165] [2022-03-03 18:39:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:06,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:06,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:06,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434725165] [2022-03-03 18:39:06,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434725165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:06,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:06,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:06,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567183698] [2022-03-03 18:39:06,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:06,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:06,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:06,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:06,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:06,757 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) [2022-03-03 18:39:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:06,971 INFO L93 Difference]: Finished difference Result 740 states and 1834 transitions. [2022-03-03 18:39:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:06,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:06,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:06,973 INFO L225 Difference]: With dead ends: 740 [2022-03-03 18:39:06,973 INFO L226 Difference]: Without dead ends: 591 [2022-03-03 18:39:06,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:06,973 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 [2022-03-03 18:39:06,973 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] [2022-03-03 18:39:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-03-03 18:39:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 581. [2022-03-03 18:39:06,977 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) [2022-03-03 18:39:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1442 transitions. [2022-03-03 18:39:06,978 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1442 transitions. Word has length 26 [2022-03-03 18:39:06,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:06,978 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1442 transitions. [2022-03-03 18:39:06,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1442 transitions. [2022-03-03 18:39:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:06,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:06,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:06,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-03 18:39:06,979 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:06,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:06,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1888711655, now seen corresponding path program 347 times [2022-03-03 18:39:06,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:06,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237001667] [2022-03-03 18:39:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:06,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:07,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:07,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237001667] [2022-03-03 18:39:07,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237001667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:07,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:07,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:07,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090226956] [2022-03-03 18:39:07,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:07,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:07,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:07,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:07,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:07,040 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) [2022-03-03 18:39:07,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:07,251 INFO L93 Difference]: Finished difference Result 702 states and 1738 transitions. [2022-03-03 18:39:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:07,252 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:07,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:07,253 INFO L225 Difference]: With dead ends: 702 [2022-03-03 18:39:07,253 INFO L226 Difference]: Without dead ends: 558 [2022-03-03 18:39:07,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:07,254 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 [2022-03-03 18:39:07,254 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] [2022-03-03 18:39:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-03 18:39:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 542. [2022-03-03 18:39:07,259 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) [2022-03-03 18:39:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 1349 transitions. [2022-03-03 18:39:07,260 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 1349 transitions. Word has length 26 [2022-03-03 18:39:07,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:07,260 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 1349 transitions. [2022-03-03 18:39:07,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:07,260 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1349 transitions. [2022-03-03 18:39:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:07,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:07,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:07,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-03 18:39:07,261 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:07,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:07,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1640870661, now seen corresponding path program 348 times [2022-03-03 18:39:07,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:07,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554507616] [2022-03-03 18:39:07,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:07,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:07,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:07,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554507616] [2022-03-03 18:39:07,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554507616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:07,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:07,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:07,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292645894] [2022-03-03 18:39:07,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:07,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:07,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:07,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:07,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:07,329 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) [2022-03-03 18:39:07,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:07,538 INFO L93 Difference]: Finished difference Result 644 states and 1595 transitions. [2022-03-03 18:39:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:07,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:07,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:07,539 INFO L225 Difference]: With dead ends: 644 [2022-03-03 18:39:07,539 INFO L226 Difference]: Without dead ends: 561 [2022-03-03 18:39:07,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:07,539 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 [2022-03-03 18:39:07,539 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] [2022-03-03 18:39:07,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-03-03 18:39:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 530. [2022-03-03 18:39:07,544 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) [2022-03-03 18:39:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1306 transitions. [2022-03-03 18:39:07,544 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1306 transitions. Word has length 26 [2022-03-03 18:39:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:07,544 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1306 transitions. [2022-03-03 18:39:07,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1306 transitions. [2022-03-03 18:39:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:07,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:07,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:07,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-03 18:39:07,545 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:07,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:07,545 INFO L85 PathProgramCache]: Analyzing trace with hash 717795709, now seen corresponding path program 349 times [2022-03-03 18:39:07,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:07,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562476431] [2022-03-03 18:39:07,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:07,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:07,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:07,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562476431] [2022-03-03 18:39:07,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562476431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:07,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:07,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:07,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702034239] [2022-03-03 18:39:07,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:07,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:07,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:07,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:07,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:07,609 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) [2022-03-03 18:39:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:07,822 INFO L93 Difference]: Finished difference Result 663 states and 1624 transitions. [2022-03-03 18:39:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:07,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:07,824 INFO L225 Difference]: With dead ends: 663 [2022-03-03 18:39:07,824 INFO L226 Difference]: Without dead ends: 572 [2022-03-03 18:39:07,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:07,824 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 [2022-03-03 18:39:07,824 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] [2022-03-03 18:39:07,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-03-03 18:39:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 536. [2022-03-03 18:39:07,828 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) [2022-03-03 18:39:07,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1315 transitions. [2022-03-03 18:39:07,829 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1315 transitions. Word has length 26 [2022-03-03 18:39:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:07,829 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1315 transitions. [2022-03-03 18:39:07,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1315 transitions. [2022-03-03 18:39:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:07,830 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:07,830 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] [2022-03-03 18:39:07,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-03 18:39:07,830 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:07,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash 60632187, now seen corresponding path program 350 times [2022-03-03 18:39:07,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:07,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025664061] [2022-03-03 18:39:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:07,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:07,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:07,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:07,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025664061] [2022-03-03 18:39:07,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025664061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:07,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:07,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:07,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038783340] [2022-03-03 18:39:07,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:07,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:07,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:07,895 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) [2022-03-03 18:39:08,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:08,094 INFO L93 Difference]: Finished difference Result 635 states and 1558 transitions. [2022-03-03 18:39:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:08,094 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 [2022-03-03 18:39:08,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:08,095 INFO L225 Difference]: With dead ends: 635 [2022-03-03 18:39:08,095 INFO L226 Difference]: Without dead ends: 550 [2022-03-03 18:39:08,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:08,095 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 [2022-03-03 18:39:08,095 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] [2022-03-03 18:39:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-03 18:39:08,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 539. [2022-03-03 18:39:08,100 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) [2022-03-03 18:39:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1320 transitions. [2022-03-03 18:39:08,100 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1320 transitions. Word has length 26 [2022-03-03 18:39:08,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:08,100 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 1320 transitions. [2022-03-03 18:39:08,100 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) [2022-03-03 18:39:08,101 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1320 transitions. [2022-03-03 18:39:08,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:08,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:08,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:08,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-03 18:39:08,101 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:08,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:08,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1267933735, now seen corresponding path program 351 times [2022-03-03 18:39:08,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:08,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507277218] [2022-03-03 18:39:08,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:08,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:08,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:08,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507277218] [2022-03-03 18:39:08,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507277218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:08,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:08,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:08,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449920470] [2022-03-03 18:39:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:08,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:08,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:08,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:08,166 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) [2022-03-03 18:39:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:08,380 INFO L93 Difference]: Finished difference Result 642 states and 1579 transitions. [2022-03-03 18:39:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:08,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:08,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:08,381 INFO L225 Difference]: With dead ends: 642 [2022-03-03 18:39:08,381 INFO L226 Difference]: Without dead ends: 546 [2022-03-03 18:39:08,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:08,381 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 [2022-03-03 18:39:08,381 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] [2022-03-03 18:39:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-03-03 18:39:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 536. [2022-03-03 18:39:08,385 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) [2022-03-03 18:39:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1314 transitions. [2022-03-03 18:39:08,386 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1314 transitions. Word has length 26 [2022-03-03 18:39:08,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:08,386 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1314 transitions. [2022-03-03 18:39:08,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1314 transitions. [2022-03-03 18:39:08,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:08,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:08,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:08,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-03 18:39:08,387 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:08,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:08,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1412249659, now seen corresponding path program 352 times [2022-03-03 18:39:08,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:08,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184541377] [2022-03-03 18:39:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:08,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:08,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:08,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184541377] [2022-03-03 18:39:08,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184541377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:08,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:08,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:08,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043717054] [2022-03-03 18:39:08,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:08,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:08,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:08,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:08,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:08,452 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) [2022-03-03 18:39:08,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:08,644 INFO L93 Difference]: Finished difference Result 646 states and 1576 transitions. [2022-03-03 18:39:08,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:08,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:08,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:08,645 INFO L225 Difference]: With dead ends: 646 [2022-03-03 18:39:08,645 INFO L226 Difference]: Without dead ends: 559 [2022-03-03 18:39:08,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:08,645 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 [2022-03-03 18:39:08,645 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] [2022-03-03 18:39:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-03 18:39:08,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 530. [2022-03-03 18:39:08,649 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) [2022-03-03 18:39:08,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1295 transitions. [2022-03-03 18:39:08,650 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1295 transitions. Word has length 26 [2022-03-03 18:39:08,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:08,650 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1295 transitions. [2022-03-03 18:39:08,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:08,650 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1295 transitions. [2022-03-03 18:39:08,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:08,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:08,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:08,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-03 18:39:08,651 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1441210267, now seen corresponding path program 353 times [2022-03-03 18:39:08,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:08,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406978199] [2022-03-03 18:39:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:08,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:08,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:08,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406978199] [2022-03-03 18:39:08,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406978199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:08,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:08,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:08,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947169171] [2022-03-03 18:39:08,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:08,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:08,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:08,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:08,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:08,728 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) [2022-03-03 18:39:08,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:08,941 INFO L93 Difference]: Finished difference Result 658 states and 1602 transitions. [2022-03-03 18:39:08,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:08,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:08,942 INFO L225 Difference]: With dead ends: 658 [2022-03-03 18:39:08,942 INFO L226 Difference]: Without dead ends: 567 [2022-03-03 18:39:08,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:08,942 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 [2022-03-03 18:39:08,942 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] [2022-03-03 18:39:08,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-03 18:39:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 530. [2022-03-03 18:39:08,946 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) [2022-03-03 18:39:08,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1295 transitions. [2022-03-03 18:39:08,947 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1295 transitions. Word has length 26 [2022-03-03 18:39:08,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:08,947 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1295 transitions. [2022-03-03 18:39:08,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1295 transitions. [2022-03-03 18:39:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:08,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:08,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:08,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-03 18:39:08,948 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1461612483, now seen corresponding path program 354 times [2022-03-03 18:39:08,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:08,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081303877] [2022-03-03 18:39:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:09,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:09,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081303877] [2022-03-03 18:39:09,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081303877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:09,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:09,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:09,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11771395] [2022-03-03 18:39:09,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:09,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:09,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:09,013 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) [2022-03-03 18:39:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:09,224 INFO L93 Difference]: Finished difference Result 638 states and 1564 transitions. [2022-03-03 18:39:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:09,225 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 [2022-03-03 18:39:09,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:09,225 INFO L225 Difference]: With dead ends: 638 [2022-03-03 18:39:09,226 INFO L226 Difference]: Without dead ends: 541 [2022-03-03 18:39:09,226 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 [2022-03-03 18:39:09,226 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 [2022-03-03 18:39:09,226 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] [2022-03-03 18:39:09,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-03-03 18:39:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 528. [2022-03-03 18:39:09,230 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) [2022-03-03 18:39:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1290 transitions. [2022-03-03 18:39:09,231 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1290 transitions. Word has length 26 [2022-03-03 18:39:09,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:09,231 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1290 transitions. [2022-03-03 18:39:09,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1290 transitions. [2022-03-03 18:39:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:09,231 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:09,232 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] [2022-03-03 18:39:09,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-03 18:39:09,232 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:09,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1000145903, now seen corresponding path program 355 times [2022-03-03 18:39:09,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:09,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536277137] [2022-03-03 18:39:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:09,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:09,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:09,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536277137] [2022-03-03 18:39:09,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536277137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:09,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:09,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:09,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138976974] [2022-03-03 18:39:09,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:09,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:09,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:09,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:09,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:09,295 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) [2022-03-03 18:39:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:09,493 INFO L93 Difference]: Finished difference Result 621 states and 1513 transitions. [2022-03-03 18:39:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:09,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:09,495 INFO L225 Difference]: With dead ends: 621 [2022-03-03 18:39:09,495 INFO L226 Difference]: Without dead ends: 536 [2022-03-03 18:39:09,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:09,495 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 [2022-03-03 18:39:09,495 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] [2022-03-03 18:39:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-03-03 18:39:09,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 516. [2022-03-03 18:39:09,499 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) [2022-03-03 18:39:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 1260 transitions. [2022-03-03 18:39:09,500 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 1260 transitions. Word has length 26 [2022-03-03 18:39:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:09,500 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 1260 transitions. [2022-03-03 18:39:09,500 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) [2022-03-03 18:39:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 1260 transitions. [2022-03-03 18:39:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:09,500 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:09,500 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] [2022-03-03 18:39:09,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-03 18:39:09,500 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1966255471, now seen corresponding path program 356 times [2022-03-03 18:39:09,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:09,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476706379] [2022-03-03 18:39:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:09,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:09,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:09,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:09,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476706379] [2022-03-03 18:39:09,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476706379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:09,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:09,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:09,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12571861] [2022-03-03 18:39:09,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:09,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:09,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:09,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:09,572 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) [2022-03-03 18:39:09,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:09,787 INFO L93 Difference]: Finished difference Result 643 states and 1566 transitions. [2022-03-03 18:39:09,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:09,788 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 [2022-03-03 18:39:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:09,788 INFO L225 Difference]: With dead ends: 643 [2022-03-03 18:39:09,788 INFO L226 Difference]: Without dead ends: 541 [2022-03-03 18:39:09,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:09,789 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 [2022-03-03 18:39:09,789 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] [2022-03-03 18:39:09,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-03-03 18:39:09,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 501. [2022-03-03 18:39:09,793 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) [2022-03-03 18:39:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 1231 transitions. [2022-03-03 18:39:09,793 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 1231 transitions. Word has length 26 [2022-03-03 18:39:09,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:09,793 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 1231 transitions. [2022-03-03 18:39:09,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:09,793 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 1231 transitions. [2022-03-03 18:39:09,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:09,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:09,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:09,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-03 18:39:09,794 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:09,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1296410551, now seen corresponding path program 357 times [2022-03-03 18:39:09,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:09,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474319716] [2022-03-03 18:39:09,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:09,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:09,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:09,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474319716] [2022-03-03 18:39:09,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474319716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:09,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:09,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:09,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765789826] [2022-03-03 18:39:09,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:09,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:09,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:09,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:09,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:09,865 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) [2022-03-03 18:39:10,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:10,077 INFO L93 Difference]: Finished difference Result 600 states and 1466 transitions. [2022-03-03 18:39:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:10,078 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:10,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:10,079 INFO L225 Difference]: With dead ends: 600 [2022-03-03 18:39:10,079 INFO L226 Difference]: Without dead ends: 459 [2022-03-03 18:39:10,079 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 [2022-03-03 18:39:10,079 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 [2022-03-03 18:39:10,079 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] [2022-03-03 18:39:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-03 18:39:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 419. [2022-03-03 18:39:10,082 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) [2022-03-03 18:39:10,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1031 transitions. [2022-03-03 18:39:10,083 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1031 transitions. Word has length 26 [2022-03-03 18:39:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:10,083 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 1031 transitions. [2022-03-03 18:39:10,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1031 transitions. [2022-03-03 18:39:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:10,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:10,084 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] [2022-03-03 18:39:10,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-03 18:39:10,084 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:10,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:10,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1053952619, now seen corresponding path program 358 times [2022-03-03 18:39:10,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:10,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514979102] [2022-03-03 18:39:10,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:10,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:10,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:10,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514979102] [2022-03-03 18:39:10,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514979102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:10,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:10,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:10,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985976718] [2022-03-03 18:39:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:10,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:10,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:10,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:10,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:10,149 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) [2022-03-03 18:39:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:10,368 INFO L93 Difference]: Finished difference Result 544 states and 1325 transitions. [2022-03-03 18:39:10,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:10,368 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 [2022-03-03 18:39:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:10,368 INFO L225 Difference]: With dead ends: 544 [2022-03-03 18:39:10,369 INFO L226 Difference]: Without dead ends: 423 [2022-03-03 18:39:10,369 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 [2022-03-03 18:39:10,369 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 [2022-03-03 18:39:10,369 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] [2022-03-03 18:39:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-03 18:39:10,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2022-03-03 18:39:10,372 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) [2022-03-03 18:39:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1021 transitions. [2022-03-03 18:39:10,373 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1021 transitions. Word has length 26 [2022-03-03 18:39:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:10,373 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 1021 transitions. [2022-03-03 18:39:10,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1021 transitions. [2022-03-03 18:39:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:10,373 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:10,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:10,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-03 18:39:10,373 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:10,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:10,374 INFO L85 PathProgramCache]: Analyzing trace with hash 342627403, now seen corresponding path program 359 times [2022-03-03 18:39:10,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:10,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483232638] [2022-03-03 18:39:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:10,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:10,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:10,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483232638] [2022-03-03 18:39:10,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483232638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:10,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:10,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:10,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001493072] [2022-03-03 18:39:10,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:10,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:10,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:10,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:10,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:10,442 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) [2022-03-03 18:39:10,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:10,654 INFO L93 Difference]: Finished difference Result 545 states and 1321 transitions. [2022-03-03 18:39:10,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:10,655 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 [2022-03-03 18:39:10,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:10,655 INFO L225 Difference]: With dead ends: 545 [2022-03-03 18:39:10,655 INFO L226 Difference]: Without dead ends: 429 [2022-03-03 18:39:10,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:10,656 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 [2022-03-03 18:39:10,656 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] [2022-03-03 18:39:10,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-03 18:39:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 423. [2022-03-03 18:39:10,659 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) [2022-03-03 18:39:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1028 transitions. [2022-03-03 18:39:10,659 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1028 transitions. Word has length 26 [2022-03-03 18:39:10,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:10,660 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 1028 transitions. [2022-03-03 18:39:10,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:10,660 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1028 transitions. [2022-03-03 18:39:10,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:10,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:10,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:10,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-03 18:39:10,660 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:10,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:10,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1226301139, now seen corresponding path program 360 times [2022-03-03 18:39:10,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:10,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922880308] [2022-03-03 18:39:10,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:10,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:10,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:10,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922880308] [2022-03-03 18:39:10,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922880308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:10,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:10,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:10,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176871152] [2022-03-03 18:39:10,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:10,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:10,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:10,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:10,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:10,723 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) [2022-03-03 18:39:10,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:10,937 INFO L93 Difference]: Finished difference Result 536 states and 1302 transitions. [2022-03-03 18:39:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:10,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:10,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:10,938 INFO L225 Difference]: With dead ends: 536 [2022-03-03 18:39:10,938 INFO L226 Difference]: Without dead ends: 417 [2022-03-03 18:39:10,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:10,939 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 [2022-03-03 18:39:10,939 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] [2022-03-03 18:39:10,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-03-03 18:39:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 409. [2022-03-03 18:39:10,942 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) [2022-03-03 18:39:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 1001 transitions. [2022-03-03 18:39:10,943 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 1001 transitions. Word has length 26 [2022-03-03 18:39:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:10,943 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 1001 transitions. [2022-03-03 18:39:10,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 1001 transitions. [2022-03-03 18:39:10,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:10,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:10,943 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] [2022-03-03 18:39:10,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-03 18:39:10,943 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:10,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 814130831, now seen corresponding path program 361 times [2022-03-03 18:39:10,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:10,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646087857] [2022-03-03 18:39:10,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:10,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:11,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:11,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:11,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646087857] [2022-03-03 18:39:11,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646087857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:11,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:11,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:11,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221649023] [2022-03-03 18:39:11,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:11,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:39:11,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:11,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:39:11,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:11,011 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) [2022-03-03 18:39:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:11,189 INFO L93 Difference]: Finished difference Result 541 states and 1317 transitions. [2022-03-03 18:39:11,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:39:11,189 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 [2022-03-03 18:39:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:11,190 INFO L225 Difference]: With dead ends: 541 [2022-03-03 18:39:11,190 INFO L226 Difference]: Without dead ends: 430 [2022-03-03 18:39:11,190 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 [2022-03-03 18:39:11,190 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:11,190 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] [2022-03-03 18:39:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-03 18:39:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 426. [2022-03-03 18:39:11,193 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) [2022-03-03 18:39:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1032 transitions. [2022-03-03 18:39:11,194 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1032 transitions. Word has length 26 [2022-03-03 18:39:11,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:11,194 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1032 transitions. [2022-03-03 18:39:11,194 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) [2022-03-03 18:39:11,194 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1032 transitions. [2022-03-03 18:39:11,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:11,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:11,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:11,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-03 18:39:11,195 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:11,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1313556945, now seen corresponding path program 362 times [2022-03-03 18:39:11,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:11,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871924201] [2022-03-03 18:39:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:11,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:11,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:11,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871924201] [2022-03-03 18:39:11,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871924201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:11,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:11,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:11,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265975376] [2022-03-03 18:39:11,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:11,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:39:11,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:39:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:11,264 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) [2022-03-03 18:39:11,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:11,439 INFO L93 Difference]: Finished difference Result 544 states and 1316 transitions. [2022-03-03 18:39:11,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:39:11,439 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 [2022-03-03 18:39:11,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:11,440 INFO L225 Difference]: With dead ends: 544 [2022-03-03 18:39:11,440 INFO L226 Difference]: Without dead ends: 444 [2022-03-03 18:39:11,440 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 [2022-03-03 18:39:11,440 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:11,440 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] [2022-03-03 18:39:11,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-03 18:39:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 431. [2022-03-03 18:39:11,444 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) [2022-03-03 18:39:11,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1043 transitions. [2022-03-03 18:39:11,444 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1043 transitions. Word has length 26 [2022-03-03 18:39:11,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:11,445 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 1043 transitions. [2022-03-03 18:39:11,445 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) [2022-03-03 18:39:11,445 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1043 transitions. [2022-03-03 18:39:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:11,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:11,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:11,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-03 18:39:11,445 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2060834385, now seen corresponding path program 363 times [2022-03-03 18:39:11,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:11,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36148011] [2022-03-03 18:39:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:11,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:11,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36148011] [2022-03-03 18:39:11,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36148011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:11,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:11,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:11,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083701047] [2022-03-03 18:39:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:11,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:39:11,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:11,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:39:11,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:11,502 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) [2022-03-03 18:39:11,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:11,679 INFO L93 Difference]: Finished difference Result 539 states and 1307 transitions. [2022-03-03 18:39:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:39:11,679 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 [2022-03-03 18:39:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:11,680 INFO L225 Difference]: With dead ends: 539 [2022-03-03 18:39:11,680 INFO L226 Difference]: Without dead ends: 431 [2022-03-03 18:39:11,680 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 [2022-03-03 18:39:11,680 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:11,680 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] [2022-03-03 18:39:11,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-03-03 18:39:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 414. [2022-03-03 18:39:11,683 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) [2022-03-03 18:39:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1010 transitions. [2022-03-03 18:39:11,684 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1010 transitions. Word has length 26 [2022-03-03 18:39:11,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:11,684 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 1010 transitions. [2022-03-03 18:39:11,684 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) [2022-03-03 18:39:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1010 transitions. [2022-03-03 18:39:11,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:11,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:11,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:11,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-03 18:39:11,685 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:11,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:11,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1506122419, now seen corresponding path program 364 times [2022-03-03 18:39:11,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:11,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244259383] [2022-03-03 18:39:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:11,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:11,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244259383] [2022-03-03 18:39:11,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244259383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:11,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:11,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:11,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848281025] [2022-03-03 18:39:11,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:11,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:11,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:11,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:11,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:11,746 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) [2022-03-03 18:39:11,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:11,964 INFO L93 Difference]: Finished difference Result 552 states and 1354 transitions. [2022-03-03 18:39:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:11,965 INFO L225 Difference]: With dead ends: 552 [2022-03-03 18:39:11,965 INFO L226 Difference]: Without dead ends: 447 [2022-03-03 18:39:11,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:11,966 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 [2022-03-03 18:39:11,966 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] [2022-03-03 18:39:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-03-03 18:39:11,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 426. [2022-03-03 18:39:11,969 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) [2022-03-03 18:39:11,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1049 transitions. [2022-03-03 18:39:11,970 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1049 transitions. Word has length 26 [2022-03-03 18:39:11,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:11,970 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1049 transitions. [2022-03-03 18:39:11,970 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) [2022-03-03 18:39:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1049 transitions. [2022-03-03 18:39:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:11,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:11,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:11,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-03 18:39:11,970 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:11,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:11,972 INFO L85 PathProgramCache]: Analyzing trace with hash -359828879, now seen corresponding path program 365 times [2022-03-03 18:39:11,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:11,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816858156] [2022-03-03 18:39:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:11,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:12,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:12,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:12,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816858156] [2022-03-03 18:39:12,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816858156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:12,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:12,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:12,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059079910] [2022-03-03 18:39:12,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:12,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:12,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:12,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:12,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:12,041 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) [2022-03-03 18:39:12,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:12,262 INFO L93 Difference]: Finished difference Result 587 states and 1441 transitions. [2022-03-03 18:39:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:12,263 INFO L225 Difference]: With dead ends: 587 [2022-03-03 18:39:12,263 INFO L226 Difference]: Without dead ends: 454 [2022-03-03 18:39:12,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:12,263 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 [2022-03-03 18:39:12,263 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] [2022-03-03 18:39:12,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-03-03 18:39:12,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 438. [2022-03-03 18:39:12,267 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) [2022-03-03 18:39:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1076 transitions. [2022-03-03 18:39:12,267 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1076 transitions. Word has length 26 [2022-03-03 18:39:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:12,268 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 1076 transitions. [2022-03-03 18:39:12,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1076 transitions. [2022-03-03 18:39:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:12,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:12,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:12,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-03 18:39:12,268 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:12,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:12,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1388864917, now seen corresponding path program 366 times [2022-03-03 18:39:12,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:12,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112409824] [2022-03-03 18:39:12,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:12,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:12,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:12,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:12,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112409824] [2022-03-03 18:39:12,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112409824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:12,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:12,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:12,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892235881] [2022-03-03 18:39:12,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:12,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:12,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:12,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:12,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:12,334 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) [2022-03-03 18:39:12,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:12,562 INFO L93 Difference]: Finished difference Result 557 states and 1384 transitions. [2022-03-03 18:39:12,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:12,562 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 [2022-03-03 18:39:12,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:12,563 INFO L225 Difference]: With dead ends: 557 [2022-03-03 18:39:12,563 INFO L226 Difference]: Without dead ends: 460 [2022-03-03 18:39:12,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:12,563 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 [2022-03-03 18:39:12,563 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] [2022-03-03 18:39:12,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-03 18:39:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 443. [2022-03-03 18:39:12,567 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) [2022-03-03 18:39:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1091 transitions. [2022-03-03 18:39:12,567 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1091 transitions. Word has length 26 [2022-03-03 18:39:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:12,567 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1091 transitions. [2022-03-03 18:39:12,567 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) [2022-03-03 18:39:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1091 transitions. [2022-03-03 18:39:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:12,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:12,568 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] [2022-03-03 18:39:12,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-03 18:39:12,568 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:12,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1337173837, now seen corresponding path program 367 times [2022-03-03 18:39:12,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:12,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225147874] [2022-03-03 18:39:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:12,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:12,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225147874] [2022-03-03 18:39:12,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225147874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:12,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:12,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:12,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097555710] [2022-03-03 18:39:12,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:12,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:12,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:12,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:12,632 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) [2022-03-03 18:39:12,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:12,854 INFO L93 Difference]: Finished difference Result 553 states and 1364 transitions. [2022-03-03 18:39:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:12,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:12,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:12,855 INFO L225 Difference]: With dead ends: 553 [2022-03-03 18:39:12,855 INFO L226 Difference]: Without dead ends: 448 [2022-03-03 18:39:12,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:12,855 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 [2022-03-03 18:39:12,855 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] [2022-03-03 18:39:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-03-03 18:39:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 426. [2022-03-03 18:39:12,859 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) [2022-03-03 18:39:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1039 transitions. [2022-03-03 18:39:12,859 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1039 transitions. Word has length 26 [2022-03-03 18:39:12,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:12,859 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1039 transitions. [2022-03-03 18:39:12,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:12,860 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1039 transitions. [2022-03-03 18:39:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:12,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:12,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:12,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-03 18:39:12,860 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:12,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:12,860 INFO L85 PathProgramCache]: Analyzing trace with hash -879139765, now seen corresponding path program 368 times [2022-03-03 18:39:12,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:12,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484246213] [2022-03-03 18:39:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:12,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:12,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:12,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484246213] [2022-03-03 18:39:12,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484246213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:12,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:12,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:12,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064846878] [2022-03-03 18:39:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:12,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:12,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:12,924 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) [2022-03-03 18:39:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:13,135 INFO L93 Difference]: Finished difference Result 558 states and 1354 transitions. [2022-03-03 18:39:13,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:13,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:13,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:13,136 INFO L225 Difference]: With dead ends: 558 [2022-03-03 18:39:13,136 INFO L226 Difference]: Without dead ends: 451 [2022-03-03 18:39:13,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:13,136 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 [2022-03-03 18:39:13,136 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] [2022-03-03 18:39:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-03 18:39:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 436. [2022-03-03 18:39:13,140 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) [2022-03-03 18:39:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1061 transitions. [2022-03-03 18:39:13,140 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1061 transitions. Word has length 26 [2022-03-03 18:39:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:13,140 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 1061 transitions. [2022-03-03 18:39:13,140 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) [2022-03-03 18:39:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1061 transitions. [2022-03-03 18:39:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:13,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:13,141 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] [2022-03-03 18:39:13,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-03 18:39:13,141 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:13,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:13,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1846898989, now seen corresponding path program 369 times [2022-03-03 18:39:13,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:13,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275095913] [2022-03-03 18:39:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:13,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:13,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:13,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:13,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275095913] [2022-03-03 18:39:13,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275095913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:13,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:13,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:13,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857724586] [2022-03-03 18:39:13,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:13,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:13,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:13,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:13,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:13,205 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) [2022-03-03 18:39:13,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:13,414 INFO L93 Difference]: Finished difference Result 542 states and 1322 transitions. [2022-03-03 18:39:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:13,414 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 [2022-03-03 18:39:13,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:13,415 INFO L225 Difference]: With dead ends: 542 [2022-03-03 18:39:13,415 INFO L226 Difference]: Without dead ends: 443 [2022-03-03 18:39:13,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:13,415 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 [2022-03-03 18:39:13,415 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] [2022-03-03 18:39:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-03-03 18:39:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 438. [2022-03-03 18:39:13,419 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) [2022-03-03 18:39:13,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1066 transitions. [2022-03-03 18:39:13,419 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1066 transitions. Word has length 26 [2022-03-03 18:39:13,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:13,420 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 1066 transitions. [2022-03-03 18:39:13,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:13,420 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1066 transitions. [2022-03-03 18:39:13,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:13,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:13,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:13,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-03 18:39:13,420 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1085947731, now seen corresponding path program 370 times [2022-03-03 18:39:13,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:13,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258340204] [2022-03-03 18:39:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:13,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:13,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:13,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:13,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258340204] [2022-03-03 18:39:13,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258340204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:13,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:13,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:13,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767310939] [2022-03-03 18:39:13,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:13,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:13,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:13,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:13,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:13,483 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) [2022-03-03 18:39:13,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:13,696 INFO L93 Difference]: Finished difference Result 571 states and 1384 transitions. [2022-03-03 18:39:13,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:13,697 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 [2022-03-03 18:39:13,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:13,697 INFO L225 Difference]: With dead ends: 571 [2022-03-03 18:39:13,697 INFO L226 Difference]: Without dead ends: 461 [2022-03-03 18:39:13,697 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 [2022-03-03 18:39:13,698 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 [2022-03-03 18:39:13,698 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] [2022-03-03 18:39:13,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-03-03 18:39:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 445. [2022-03-03 18:39:13,701 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) [2022-03-03 18:39:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1082 transitions. [2022-03-03 18:39:13,702 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1082 transitions. Word has length 26 [2022-03-03 18:39:13,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:13,702 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1082 transitions. [2022-03-03 18:39:13,702 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) [2022-03-03 18:39:13,702 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1082 transitions. [2022-03-03 18:39:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:13,703 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:13,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:13,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-03 18:39:13,703 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:13,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash 615555117, now seen corresponding path program 371 times [2022-03-03 18:39:13,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:13,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061859600] [2022-03-03 18:39:13,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:13,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:13,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:13,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061859600] [2022-03-03 18:39:13,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061859600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:13,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:13,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:13,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153285254] [2022-03-03 18:39:13,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:13,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:13,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:13,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:13,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:13,767 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) [2022-03-03 18:39:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:13,983 INFO L93 Difference]: Finished difference Result 570 states and 1380 transitions. [2022-03-03 18:39:13,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:13,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:13,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:13,984 INFO L225 Difference]: With dead ends: 570 [2022-03-03 18:39:13,984 INFO L226 Difference]: Without dead ends: 468 [2022-03-03 18:39:13,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:13,984 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 [2022-03-03 18:39:13,984 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] [2022-03-03 18:39:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-03 18:39:13,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 452. [2022-03-03 18:39:13,988 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) [2022-03-03 18:39:13,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1097 transitions. [2022-03-03 18:39:13,989 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1097 transitions. Word has length 26 [2022-03-03 18:39:13,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:13,989 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 1097 transitions. [2022-03-03 18:39:13,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1097 transitions. [2022-03-03 18:39:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:13,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:13,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:13,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-03 18:39:13,989 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:13,990 INFO L85 PathProgramCache]: Analyzing trace with hash -935650161, now seen corresponding path program 372 times [2022-03-03 18:39:13,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:13,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559503493] [2022-03-03 18:39:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:13,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:14,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:14,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559503493] [2022-03-03 18:39:14,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559503493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:14,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:14,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:14,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355554277] [2022-03-03 18:39:14,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:14,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:14,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:14,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:14,055 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) [2022-03-03 18:39:14,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:14,271 INFO L93 Difference]: Finished difference Result 564 states and 1379 transitions. [2022-03-03 18:39:14,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:14,272 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 [2022-03-03 18:39:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:14,272 INFO L225 Difference]: With dead ends: 564 [2022-03-03 18:39:14,272 INFO L226 Difference]: Without dead ends: 467 [2022-03-03 18:39:14,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:14,273 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 [2022-03-03 18:39:14,273 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] [2022-03-03 18:39:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-03 18:39:14,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 457. [2022-03-03 18:39:14,277 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) [2022-03-03 18:39:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 1112 transitions. [2022-03-03 18:39:14,277 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 1112 transitions. Word has length 26 [2022-03-03 18:39:14,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:14,277 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 1112 transitions. [2022-03-03 18:39:14,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:14,277 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 1112 transitions. [2022-03-03 18:39:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:14,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:14,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:14,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-03 18:39:14,278 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:14,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:14,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1967172589, now seen corresponding path program 373 times [2022-03-03 18:39:14,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:14,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919290734] [2022-03-03 18:39:14,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:14,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:14,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:14,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919290734] [2022-03-03 18:39:14,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919290734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:14,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:14,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:14,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40521211] [2022-03-03 18:39:14,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:14,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:14,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:14,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:14,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:14,342 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) [2022-03-03 18:39:14,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:14,555 INFO L93 Difference]: Finished difference Result 564 states and 1377 transitions. [2022-03-03 18:39:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:14,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:14,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:14,556 INFO L225 Difference]: With dead ends: 564 [2022-03-03 18:39:14,556 INFO L226 Difference]: Without dead ends: 460 [2022-03-03 18:39:14,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:14,556 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 [2022-03-03 18:39:14,556 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] [2022-03-03 18:39:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-03 18:39:14,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 445. [2022-03-03 18:39:14,559 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) [2022-03-03 18:39:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1081 transitions. [2022-03-03 18:39:14,560 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1081 transitions. Word has length 26 [2022-03-03 18:39:14,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:14,560 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1081 transitions. [2022-03-03 18:39:14,560 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) [2022-03-03 18:39:14,560 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1081 transitions. [2022-03-03 18:39:14,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:14,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:14,561 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] [2022-03-03 18:39:14,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-03 18:39:14,561 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:14,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1288349539, now seen corresponding path program 374 times [2022-03-03 18:39:14,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:14,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281409072] [2022-03-03 18:39:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:14,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:14,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:14,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281409072] [2022-03-03 18:39:14,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281409072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:14,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:14,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:14,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146448007] [2022-03-03 18:39:14,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:14,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:14,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:14,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:14,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:14,621 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) [2022-03-03 18:39:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:14,843 INFO L93 Difference]: Finished difference Result 598 states and 1453 transitions. [2022-03-03 18:39:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:14,844 INFO L225 Difference]: With dead ends: 598 [2022-03-03 18:39:14,844 INFO L226 Difference]: Without dead ends: 471 [2022-03-03 18:39:14,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:14,845 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 [2022-03-03 18:39:14,845 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] [2022-03-03 18:39:14,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-03-03 18:39:14,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 445. [2022-03-03 18:39:14,848 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) [2022-03-03 18:39:14,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1077 transitions. [2022-03-03 18:39:14,849 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1077 transitions. Word has length 26 [2022-03-03 18:39:14,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:14,849 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1077 transitions. [2022-03-03 18:39:14,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1077 transitions. [2022-03-03 18:39:14,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:14,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:14,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:14,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-03 18:39:14,850 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:14,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:14,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1405607041, now seen corresponding path program 375 times [2022-03-03 18:39:14,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:14,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837264035] [2022-03-03 18:39:14,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:14,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:14,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:14,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837264035] [2022-03-03 18:39:14,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837264035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:14,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:14,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:14,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633979048] [2022-03-03 18:39:14,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:14,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:14,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:14,912 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) [2022-03-03 18:39:15,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:15,143 INFO L93 Difference]: Finished difference Result 583 states and 1427 transitions. [2022-03-03 18:39:15,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:15,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:15,144 INFO L225 Difference]: With dead ends: 583 [2022-03-03 18:39:15,144 INFO L226 Difference]: Without dead ends: 464 [2022-03-03 18:39:15,144 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 [2022-03-03 18:39:15,144 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 [2022-03-03 18:39:15,144 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] [2022-03-03 18:39:15,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-03 18:39:15,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 450. [2022-03-03 18:39:15,148 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) [2022-03-03 18:39:15,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1092 transitions. [2022-03-03 18:39:15,148 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1092 transitions. Word has length 26 [2022-03-03 18:39:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:15,149 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 1092 transitions. [2022-03-03 18:39:15,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1092 transitions. [2022-03-03 18:39:15,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:15,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:15,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:15,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-03 18:39:15,149 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:15,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:15,150 INFO L85 PathProgramCache]: Analyzing trace with hash -163321501, now seen corresponding path program 376 times [2022-03-03 18:39:15,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:15,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024341500] [2022-03-03 18:39:15,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:15,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:15,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:15,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024341500] [2022-03-03 18:39:15,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024341500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:15,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:15,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:15,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774738879] [2022-03-03 18:39:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:15,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:15,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:15,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:15,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:15,228 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) [2022-03-03 18:39:15,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:15,444 INFO L93 Difference]: Finished difference Result 599 states and 1449 transitions. [2022-03-03 18:39:15,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:15,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:15,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:15,445 INFO L225 Difference]: With dead ends: 599 [2022-03-03 18:39:15,445 INFO L226 Difference]: Without dead ends: 472 [2022-03-03 18:39:15,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:15,445 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 [2022-03-03 18:39:15,445 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] [2022-03-03 18:39:15,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-03 18:39:15,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 450. [2022-03-03 18:39:15,449 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) [2022-03-03 18:39:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1072 transitions. [2022-03-03 18:39:15,449 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1072 transitions. Word has length 26 [2022-03-03 18:39:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:15,450 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 1072 transitions. [2022-03-03 18:39:15,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1072 transitions. [2022-03-03 18:39:15,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:15,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:15,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:15,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-03 18:39:15,450 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:15,450 INFO L85 PathProgramCache]: Analyzing trace with hash 29359919, now seen corresponding path program 377 times [2022-03-03 18:39:15,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:15,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333342316] [2022-03-03 18:39:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:15,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:15,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:15,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333342316] [2022-03-03 18:39:15,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333342316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:15,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:15,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:15,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373333562] [2022-03-03 18:39:15,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:15,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:15,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:15,513 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) [2022-03-03 18:39:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:15,720 INFO L93 Difference]: Finished difference Result 553 states and 1321 transitions. [2022-03-03 18:39:15,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:15,721 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:15,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:15,721 INFO L225 Difference]: With dead ends: 553 [2022-03-03 18:39:15,721 INFO L226 Difference]: Without dead ends: 420 [2022-03-03 18:39:15,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:15,721 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 [2022-03-03 18:39:15,722 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] [2022-03-03 18:39:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-03 18:39:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 403. [2022-03-03 18:39:15,725 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) [2022-03-03 18:39:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 960 transitions. [2022-03-03 18:39:15,725 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 960 transitions. Word has length 26 [2022-03-03 18:39:15,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:15,725 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 960 transitions. [2022-03-03 18:39:15,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 960 transitions. [2022-03-03 18:39:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:15,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:15,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:15,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-03 18:39:15,726 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1714387185, now seen corresponding path program 378 times [2022-03-03 18:39:15,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:15,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077501215] [2022-03-03 18:39:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:15,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:15,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:15,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077501215] [2022-03-03 18:39:15,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077501215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:15,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:15,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:15,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771550754] [2022-03-03 18:39:15,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:15,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:39:15,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:15,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:39:15,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:15,794 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) [2022-03-03 18:39:15,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:15,973 INFO L93 Difference]: Finished difference Result 542 states and 1283 transitions. [2022-03-03 18:39:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:39:15,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:15,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:15,974 INFO L225 Difference]: With dead ends: 542 [2022-03-03 18:39:15,974 INFO L226 Difference]: Without dead ends: 426 [2022-03-03 18:39:15,974 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 [2022-03-03 18:39:15,974 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:15,974 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] [2022-03-03 18:39:15,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-03-03 18:39:15,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 413. [2022-03-03 18:39:15,978 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) [2022-03-03 18:39:15,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 974 transitions. [2022-03-03 18:39:15,978 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 974 transitions. Word has length 26 [2022-03-03 18:39:15,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:15,978 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 974 transitions. [2022-03-03 18:39:15,978 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) [2022-03-03 18:39:15,979 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 974 transitions. [2022-03-03 18:39:15,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:15,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:15,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:15,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-03 18:39:15,979 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:15,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:15,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1011651569, now seen corresponding path program 379 times [2022-03-03 18:39:15,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:15,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212369574] [2022-03-03 18:39:15,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:15,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:16,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:16,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212369574] [2022-03-03 18:39:16,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212369574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:16,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:16,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:16,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494560825] [2022-03-03 18:39:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:16,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:16,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:16,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:16,050 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) [2022-03-03 18:39:16,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:16,269 INFO L93 Difference]: Finished difference Result 537 states and 1263 transitions. [2022-03-03 18:39:16,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:16,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:16,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:16,270 INFO L225 Difference]: With dead ends: 537 [2022-03-03 18:39:16,270 INFO L226 Difference]: Without dead ends: 418 [2022-03-03 18:39:16,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:16,270 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 [2022-03-03 18:39:16,270 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] [2022-03-03 18:39:16,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-03-03 18:39:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 403. [2022-03-03 18:39:16,273 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) [2022-03-03 18:39:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 952 transitions. [2022-03-03 18:39:16,274 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 952 transitions. Word has length 26 [2022-03-03 18:39:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:16,274 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 952 transitions. [2022-03-03 18:39:16,274 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) [2022-03-03 18:39:16,274 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 952 transitions. [2022-03-03 18:39:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:16,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:16,275 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] [2022-03-03 18:39:16,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-03 18:39:16,275 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:16,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:16,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1099141805, now seen corresponding path program 380 times [2022-03-03 18:39:16,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:16,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127353177] [2022-03-03 18:39:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:16,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:16,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:16,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127353177] [2022-03-03 18:39:16,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127353177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:16,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:16,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:16,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56822466] [2022-03-03 18:39:16,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:16,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:16,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:16,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:16,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:16,347 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) [2022-03-03 18:39:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:16,560 INFO L93 Difference]: Finished difference Result 526 states and 1249 transitions. [2022-03-03 18:39:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:16,561 INFO L225 Difference]: With dead ends: 526 [2022-03-03 18:39:16,561 INFO L226 Difference]: Without dead ends: 416 [2022-03-03 18:39:16,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:16,561 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 [2022-03-03 18:39:16,561 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] [2022-03-03 18:39:16,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-03 18:39:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 401. [2022-03-03 18:39:16,564 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) [2022-03-03 18:39:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 946 transitions. [2022-03-03 18:39:16,565 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 946 transitions. Word has length 26 [2022-03-03 18:39:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:16,565 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 946 transitions. [2022-03-03 18:39:16,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 946 transitions. [2022-03-03 18:39:16,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:16,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:16,565 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] [2022-03-03 18:39:16,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-03 18:39:16,565 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:16,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash -469786737, now seen corresponding path program 381 times [2022-03-03 18:39:16,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:16,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362799972] [2022-03-03 18:39:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:16,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:16,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362799972] [2022-03-03 18:39:16,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362799972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:16,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:16,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:16,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351244759] [2022-03-03 18:39:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:16,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:16,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:16,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:16,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:16,629 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) [2022-03-03 18:39:16,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:16,838 INFO L93 Difference]: Finished difference Result 506 states and 1204 transitions. [2022-03-03 18:39:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:16,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:16,839 INFO L225 Difference]: With dead ends: 506 [2022-03-03 18:39:16,839 INFO L226 Difference]: Without dead ends: 407 [2022-03-03 18:39:16,839 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 [2022-03-03 18:39:16,839 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 [2022-03-03 18:39:16,839 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] [2022-03-03 18:39:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-03-03 18:39:16,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 401. [2022-03-03 18:39:16,842 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) [2022-03-03 18:39:16,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 945 transitions. [2022-03-03 18:39:16,843 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 945 transitions. Word has length 26 [2022-03-03 18:39:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:16,843 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 945 transitions. [2022-03-03 18:39:16,843 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) [2022-03-03 18:39:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 945 transitions. [2022-03-03 18:39:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:16,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:16,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:16,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-03 18:39:16,844 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1042631409, now seen corresponding path program 382 times [2022-03-03 18:39:16,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:16,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649570798] [2022-03-03 18:39:16,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:16,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:16,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:16,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649570798] [2022-03-03 18:39:16,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649570798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:16,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:16,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:16,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589963375] [2022-03-03 18:39:16,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:16,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:16,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:16,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:16,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:16,925 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) [2022-03-03 18:39:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:17,146 INFO L93 Difference]: Finished difference Result 513 states and 1227 transitions. [2022-03-03 18:39:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:17,147 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:17,148 INFO L225 Difference]: With dead ends: 513 [2022-03-03 18:39:17,148 INFO L226 Difference]: Without dead ends: 416 [2022-03-03 18:39:17,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:17,148 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:17,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 236 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 18:39:17,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-03 18:39:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 406. [2022-03-03 18:39:17,151 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) [2022-03-03 18:39:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 960 transitions. [2022-03-03 18:39:17,152 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 960 transitions. Word has length 26 [2022-03-03 18:39:17,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:17,152 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 960 transitions. [2022-03-03 18:39:17,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:17,152 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 960 transitions. [2022-03-03 18:39:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:17,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:17,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:17,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-03 18:39:17,153 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash -349513137, now seen corresponding path program 383 times [2022-03-03 18:39:17,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:17,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180896207] [2022-03-03 18:39:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:17,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:17,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180896207] [2022-03-03 18:39:17,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180896207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:17,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:17,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:17,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742763631] [2022-03-03 18:39:17,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:17,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:17,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:17,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:17,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:17,218 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) [2022-03-03 18:39:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:17,428 INFO L93 Difference]: Finished difference Result 532 states and 1254 transitions. [2022-03-03 18:39:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:17,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:17,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:17,429 INFO L225 Difference]: With dead ends: 532 [2022-03-03 18:39:17,429 INFO L226 Difference]: Without dead ends: 430 [2022-03-03 18:39:17,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:17,429 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 [2022-03-03 18:39:17,430 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] [2022-03-03 18:39:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-03 18:39:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 416. [2022-03-03 18:39:17,433 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) [2022-03-03 18:39:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 974 transitions. [2022-03-03 18:39:17,434 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 974 transitions. Word has length 26 [2022-03-03 18:39:17,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:17,434 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 974 transitions. [2022-03-03 18:39:17,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 974 transitions. [2022-03-03 18:39:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:17,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:17,434 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] [2022-03-03 18:39:17,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-03 18:39:17,434 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash -18146681, now seen corresponding path program 384 times [2022-03-03 18:39:17,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:17,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934738570] [2022-03-03 18:39:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:17,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:17,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934738570] [2022-03-03 18:39:17,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934738570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:17,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:17,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:17,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261134745] [2022-03-03 18:39:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:17,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:17,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:17,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:17,498 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) [2022-03-03 18:39:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:17,703 INFO L93 Difference]: Finished difference Result 513 states and 1207 transitions. [2022-03-03 18:39:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:17,704 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 [2022-03-03 18:39:17,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:17,704 INFO L225 Difference]: With dead ends: 513 [2022-03-03 18:39:17,704 INFO L226 Difference]: Without dead ends: 404 [2022-03-03 18:39:17,704 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 [2022-03-03 18:39:17,705 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 [2022-03-03 18:39:17,705 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] [2022-03-03 18:39:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-03 18:39:17,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 381. [2022-03-03 18:39:17,708 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) [2022-03-03 18:39:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 898 transitions. [2022-03-03 18:39:17,708 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 898 transitions. Word has length 26 [2022-03-03 18:39:17,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:17,708 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 898 transitions. [2022-03-03 18:39:17,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 898 transitions. [2022-03-03 18:39:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:17,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:17,709 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] [2022-03-03 18:39:17,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-03 18:39:17,709 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:17,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash -320428265, now seen corresponding path program 385 times [2022-03-03 18:39:17,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:17,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694540028] [2022-03-03 18:39:17,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:17,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:17,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:17,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694540028] [2022-03-03 18:39:17,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694540028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:17,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:17,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:17,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336332789] [2022-03-03 18:39:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:17,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:17,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:17,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:17,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:17,772 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) [2022-03-03 18:39:17,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:17,985 INFO L93 Difference]: Finished difference Result 499 states and 1177 transitions. [2022-03-03 18:39:17,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:17,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:17,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:17,986 INFO L225 Difference]: With dead ends: 499 [2022-03-03 18:39:17,986 INFO L226 Difference]: Without dead ends: 381 [2022-03-03 18:39:17,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:17,986 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 [2022-03-03 18:39:17,986 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] [2022-03-03 18:39:17,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-03 18:39:17,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2022-03-03 18:39:17,989 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) [2022-03-03 18:39:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 886 transitions. [2022-03-03 18:39:17,990 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 886 transitions. Word has length 26 [2022-03-03 18:39:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:17,990 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 886 transitions. [2022-03-03 18:39:17,990 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) [2022-03-03 18:39:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 886 transitions. [2022-03-03 18:39:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:17,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:17,990 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] [2022-03-03 18:39:17,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-03 18:39:17,990 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:17,991 INFO L85 PathProgramCache]: Analyzing trace with hash 178997849, now seen corresponding path program 386 times [2022-03-03 18:39:17,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:17,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881270786] [2022-03-03 18:39:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:17,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:18,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:18,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881270786] [2022-03-03 18:39:18,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881270786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:18,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:18,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:18,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951387281] [2022-03-03 18:39:18,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:18,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:18,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:18,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:18,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:18,053 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) [2022-03-03 18:39:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:18,255 INFO L93 Difference]: Finished difference Result 491 states and 1149 transitions. [2022-03-03 18:39:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:18,256 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 [2022-03-03 18:39:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:18,256 INFO L225 Difference]: With dead ends: 491 [2022-03-03 18:39:18,256 INFO L226 Difference]: Without dead ends: 384 [2022-03-03 18:39:18,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:18,257 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 [2022-03-03 18:39:18,257 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] [2022-03-03 18:39:18,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-03-03 18:39:18,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 381. [2022-03-03 18:39:18,260 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) [2022-03-03 18:39:18,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 884 transitions. [2022-03-03 18:39:18,260 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 884 transitions. Word has length 26 [2022-03-03 18:39:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:18,260 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 884 transitions. [2022-03-03 18:39:18,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 884 transitions. [2022-03-03 18:39:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:18,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:18,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:18,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-03 18:39:18,261 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:18,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1099573815, now seen corresponding path program 387 times [2022-03-03 18:39:18,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:18,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536965069] [2022-03-03 18:39:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:18,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:18,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:18,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536965069] [2022-03-03 18:39:18,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536965069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:18,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:18,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:18,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598034745] [2022-03-03 18:39:18,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:18,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:18,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:18,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:18,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:18,324 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) [2022-03-03 18:39:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:18,534 INFO L93 Difference]: Finished difference Result 484 states and 1132 transitions. [2022-03-03 18:39:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:18,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:18,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:18,535 INFO L225 Difference]: With dead ends: 484 [2022-03-03 18:39:18,535 INFO L226 Difference]: Without dead ends: 369 [2022-03-03 18:39:18,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:18,535 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 [2022-03-03 18:39:18,535 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] [2022-03-03 18:39:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-03-03 18:39:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-03-03 18:39:18,538 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) [2022-03-03 18:39:18,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 860 transitions. [2022-03-03 18:39:18,539 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 860 transitions. Word has length 26 [2022-03-03 18:39:18,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:18,539 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 860 transitions. [2022-03-03 18:39:18,539 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) [2022-03-03 18:39:18,539 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 860 transitions. [2022-03-03 18:39:18,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:18,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:18,539 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] [2022-03-03 18:39:18,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-03 18:39:18,539 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1654285781, now seen corresponding path program 388 times [2022-03-03 18:39:18,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:18,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243372172] [2022-03-03 18:39:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:18,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:18,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:18,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243372172] [2022-03-03 18:39:18,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243372172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:18,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:18,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:18,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888033918] [2022-03-03 18:39:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:18,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:18,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:18,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:18,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:18,601 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) [2022-03-03 18:39:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:18,809 INFO L93 Difference]: Finished difference Result 497 states and 1163 transitions. [2022-03-03 18:39:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:18,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:18,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:18,810 INFO L225 Difference]: With dead ends: 497 [2022-03-03 18:39:18,810 INFO L226 Difference]: Without dead ends: 349 [2022-03-03 18:39:18,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:18,810 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 [2022-03-03 18:39:18,810 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] [2022-03-03 18:39:18,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-03 18:39:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 345. [2022-03-03 18:39:18,813 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) [2022-03-03 18:39:18,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 798 transitions. [2022-03-03 18:39:18,813 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 798 transitions. Word has length 26 [2022-03-03 18:39:18,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:18,813 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 798 transitions. [2022-03-03 18:39:18,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:18,813 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 798 transitions. [2022-03-03 18:39:18,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:18,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:18,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:18,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-03 18:39:18,814 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:18,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1494387975, now seen corresponding path program 389 times [2022-03-03 18:39:18,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:18,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957518070] [2022-03-03 18:39:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:18,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:18,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:18,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957518070] [2022-03-03 18:39:18,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957518070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:18,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:18,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:18,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86155381] [2022-03-03 18:39:18,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:18,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:18,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:18,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:18,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:18,876 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) [2022-03-03 18:39:19,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:19,082 INFO L93 Difference]: Finished difference Result 469 states and 1098 transitions. [2022-03-03 18:39:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:19,082 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:19,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:19,083 INFO L225 Difference]: With dead ends: 469 [2022-03-03 18:39:19,083 INFO L226 Difference]: Without dead ends: 357 [2022-03-03 18:39:19,083 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 [2022-03-03 18:39:19,083 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 [2022-03-03 18:39:19,083 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] [2022-03-03 18:39:19,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-03-03 18:39:19,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-03-03 18:39:19,086 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) [2022-03-03 18:39:19,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 822 transitions. [2022-03-03 18:39:19,086 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 822 transitions. Word has length 26 [2022-03-03 18:39:19,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:19,087 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 822 transitions. [2022-03-03 18:39:19,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:19,087 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 822 transitions. [2022-03-03 18:39:19,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:19,087 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:19,087 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] [2022-03-03 18:39:19,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-03 18:39:19,087 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:19,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:19,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1771543283, now seen corresponding path program 390 times [2022-03-03 18:39:19,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:19,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083788854] [2022-03-03 18:39:19,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:19,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:19,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:19,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083788854] [2022-03-03 18:39:19,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083788854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:19,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:19,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:19,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028949821] [2022-03-03 18:39:19,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:19,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:19,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:19,150 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) [2022-03-03 18:39:19,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:19,355 INFO L93 Difference]: Finished difference Result 474 states and 1113 transitions. [2022-03-03 18:39:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:19,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:19,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:19,356 INFO L225 Difference]: With dead ends: 474 [2022-03-03 18:39:19,356 INFO L226 Difference]: Without dead ends: 376 [2022-03-03 18:39:19,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:19,356 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 [2022-03-03 18:39:19,356 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] [2022-03-03 18:39:19,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-03 18:39:19,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 362. [2022-03-03 18:39:19,359 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) [2022-03-03 18:39:19,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 837 transitions. [2022-03-03 18:39:19,360 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 837 transitions. Word has length 26 [2022-03-03 18:39:19,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:19,360 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 837 transitions. [2022-03-03 18:39:19,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 837 transitions. [2022-03-03 18:39:19,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:19,360 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:19,360 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] [2022-03-03 18:39:19,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-03 18:39:19,360 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:19,361 INFO L85 PathProgramCache]: Analyzing trace with hash 202614741, now seen corresponding path program 391 times [2022-03-03 18:39:19,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:19,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115137683] [2022-03-03 18:39:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:19,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:19,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115137683] [2022-03-03 18:39:19,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115137683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:19,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:19,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:19,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212949500] [2022-03-03 18:39:19,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:19,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:19,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:19,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:19,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:19,439 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) [2022-03-03 18:39:19,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:19,642 INFO L93 Difference]: Finished difference Result 470 states and 1093 transitions. [2022-03-03 18:39:19,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:19,642 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:19,643 INFO L225 Difference]: With dead ends: 470 [2022-03-03 18:39:19,643 INFO L226 Difference]: Without dead ends: 364 [2022-03-03 18:39:19,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:19,643 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 [2022-03-03 18:39:19,643 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] [2022-03-03 18:39:19,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-03-03 18:39:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 345. [2022-03-03 18:39:19,646 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) [2022-03-03 18:39:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 793 transitions. [2022-03-03 18:39:19,646 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 793 transitions. Word has length 26 [2022-03-03 18:39:19,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:19,646 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 793 transitions. [2022-03-03 18:39:19,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 793 transitions. [2022-03-03 18:39:19,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:19,647 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:19,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:19,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-03 18:39:19,647 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:19,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2013698861, now seen corresponding path program 392 times [2022-03-03 18:39:19,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:19,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663449359] [2022-03-03 18:39:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:19,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:19,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663449359] [2022-03-03 18:39:19,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663449359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:19,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:19,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:19,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809772530] [2022-03-03 18:39:19,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:19,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:19,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:19,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:19,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:19,712 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) [2022-03-03 18:39:19,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:19,910 INFO L93 Difference]: Finished difference Result 452 states and 1049 transitions. [2022-03-03 18:39:19,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:19,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:19,910 INFO L225 Difference]: With dead ends: 452 [2022-03-03 18:39:19,910 INFO L226 Difference]: Without dead ends: 346 [2022-03-03 18:39:19,911 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 [2022-03-03 18:39:19,911 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 [2022-03-03 18:39:19,911 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] [2022-03-03 18:39:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-03-03 18:39:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 341. [2022-03-03 18:39:19,913 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) [2022-03-03 18:39:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 784 transitions. [2022-03-03 18:39:19,914 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 784 transitions. Word has length 26 [2022-03-03 18:39:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:19,914 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 784 transitions. [2022-03-03 18:39:19,914 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) [2022-03-03 18:39:19,914 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 784 transitions. [2022-03-03 18:39:19,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:19,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:19,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:19,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-03 18:39:19,914 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:19,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:19,915 INFO L85 PathProgramCache]: Analyzing trace with hash 712339893, now seen corresponding path program 393 times [2022-03-03 18:39:19,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:19,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944733425] [2022-03-03 18:39:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:19,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:19,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:19,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944733425] [2022-03-03 18:39:19,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944733425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:19,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:19,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:19,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584247087] [2022-03-03 18:39:19,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:19,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:19,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:19,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:19,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:19,982 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) [2022-03-03 18:39:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:20,180 INFO L93 Difference]: Finished difference Result 448 states and 1039 transitions. [2022-03-03 18:39:20,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:20,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:20,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:20,185 INFO L225 Difference]: With dead ends: 448 [2022-03-03 18:39:20,185 INFO L226 Difference]: Without dead ends: 348 [2022-03-03 18:39:20,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:20,185 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 [2022-03-03 18:39:20,185 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] [2022-03-03 18:39:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-03 18:39:20,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 344. [2022-03-03 18:39:20,188 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) [2022-03-03 18:39:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 788 transitions. [2022-03-03 18:39:20,188 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 788 transitions. Word has length 26 [2022-03-03 18:39:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:20,188 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 788 transitions. [2022-03-03 18:39:20,188 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) [2022-03-03 18:39:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 788 transitions. [2022-03-03 18:39:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:20,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:20,189 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] [2022-03-03 18:39:20,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-03 18:39:20,189 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:20,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:20,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2074460469, now seen corresponding path program 394 times [2022-03-03 18:39:20,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:20,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446348562] [2022-03-03 18:39:20,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:20,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:20,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:20,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446348562] [2022-03-03 18:39:20,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446348562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:20,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:20,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:20,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576375867] [2022-03-03 18:39:20,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:20,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:20,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:20,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:20,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:20,253 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) [2022-03-03 18:39:20,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:20,452 INFO L93 Difference]: Finished difference Result 453 states and 1051 transitions. [2022-03-03 18:39:20,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:20,452 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:20,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:20,452 INFO L225 Difference]: With dead ends: 453 [2022-03-03 18:39:20,452 INFO L226 Difference]: Without dead ends: 352 [2022-03-03 18:39:20,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:20,453 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 [2022-03-03 18:39:20,453 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] [2022-03-03 18:39:20,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-03-03 18:39:20,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 345. [2022-03-03 18:39:20,455 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) [2022-03-03 18:39:20,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 789 transitions. [2022-03-03 18:39:20,456 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 789 transitions. Word has length 26 [2022-03-03 18:39:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:20,456 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 789 transitions. [2022-03-03 18:39:20,456 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) [2022-03-03 18:39:20,456 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 789 transitions. [2022-03-03 18:39:20,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:20,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:20,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:20,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-03 18:39:20,456 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:20,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:20,457 INFO L85 PathProgramCache]: Analyzing trace with hash -519003979, now seen corresponding path program 395 times [2022-03-03 18:39:20,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:20,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577611562] [2022-03-03 18:39:20,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:20,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:20,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:20,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577611562] [2022-03-03 18:39:20,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577611562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:20,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:20,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:20,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981096786] [2022-03-03 18:39:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:20,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:20,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:20,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:20,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:20,521 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) [2022-03-03 18:39:20,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:20,725 INFO L93 Difference]: Finished difference Result 452 states and 1045 transitions. [2022-03-03 18:39:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:20,725 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:20,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:20,726 INFO L225 Difference]: With dead ends: 452 [2022-03-03 18:39:20,726 INFO L226 Difference]: Without dead ends: 349 [2022-03-03 18:39:20,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:20,726 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 [2022-03-03 18:39:20,726 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] [2022-03-03 18:39:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-03 18:39:20,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 346. [2022-03-03 18:39:20,729 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) [2022-03-03 18:39:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 790 transitions. [2022-03-03 18:39:20,729 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 790 transitions. Word has length 26 [2022-03-03 18:39:20,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:20,729 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 790 transitions. [2022-03-03 18:39:20,729 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) [2022-03-03 18:39:20,730 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 790 transitions. [2022-03-03 18:39:20,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:20,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:20,730 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] [2022-03-03 18:39:20,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-03 18:39:20,730 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:20,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:20,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2070209257, now seen corresponding path program 396 times [2022-03-03 18:39:20,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:20,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671548300] [2022-03-03 18:39:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:20,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:20,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:20,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671548300] [2022-03-03 18:39:20,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671548300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:20,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:20,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:20,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201439943] [2022-03-03 18:39:20,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:20,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:20,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:20,795 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) [2022-03-03 18:39:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:20,998 INFO L93 Difference]: Finished difference Result 456 states and 1063 transitions. [2022-03-03 18:39:20,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:20,998 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 [2022-03-03 18:39:20,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:20,999 INFO L225 Difference]: With dead ends: 456 [2022-03-03 18:39:20,999 INFO L226 Difference]: Without dead ends: 358 [2022-03-03 18:39:20,999 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 [2022-03-03 18:39:20,999 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 [2022-03-03 18:39:20,999 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] [2022-03-03 18:39:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-03 18:39:21,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 351. [2022-03-03 18:39:21,002 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) [2022-03-03 18:39:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 805 transitions. [2022-03-03 18:39:21,002 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 805 transitions. Word has length 26 [2022-03-03 18:39:21,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:21,002 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 805 transitions. [2022-03-03 18:39:21,002 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) [2022-03-03 18:39:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 805 transitions. [2022-03-03 18:39:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:21,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:21,003 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] [2022-03-03 18:39:21,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-03 18:39:21,003 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:21,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash 832613493, now seen corresponding path program 397 times [2022-03-03 18:39:21,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:21,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565871010] [2022-03-03 18:39:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:21,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:21,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:21,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565871010] [2022-03-03 18:39:21,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565871010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:21,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:21,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:21,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066168253] [2022-03-03 18:39:21,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:21,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:21,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:21,067 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) [2022-03-03 18:39:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:21,266 INFO L93 Difference]: Finished difference Result 456 states and 1056 transitions. [2022-03-03 18:39:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:21,267 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:21,267 INFO L225 Difference]: With dead ends: 456 [2022-03-03 18:39:21,267 INFO L226 Difference]: Without dead ends: 351 [2022-03-03 18:39:21,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:21,268 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 [2022-03-03 18:39:21,268 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] [2022-03-03 18:39:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-03-03 18:39:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 339. [2022-03-03 18:39:21,270 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) [2022-03-03 18:39:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 777 transitions. [2022-03-03 18:39:21,271 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 777 transitions. Word has length 26 [2022-03-03 18:39:21,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:21,271 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 777 transitions. [2022-03-03 18:39:21,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 777 transitions. [2022-03-03 18:39:21,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:21,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:21,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:21,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-03 18:39:21,272 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:21,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:21,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1817674631, now seen corresponding path program 398 times [2022-03-03 18:39:21,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:21,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407382937] [2022-03-03 18:39:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:21,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:21,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:21,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407382937] [2022-03-03 18:39:21,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407382937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:21,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:21,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:21,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730667507] [2022-03-03 18:39:21,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:21,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:21,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:21,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:21,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:21,335 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) [2022-03-03 18:39:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:21,541 INFO L93 Difference]: Finished difference Result 462 states and 1071 transitions. [2022-03-03 18:39:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:21,542 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 [2022-03-03 18:39:21,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:21,542 INFO L225 Difference]: With dead ends: 462 [2022-03-03 18:39:21,542 INFO L226 Difference]: Without dead ends: 311 [2022-03-03 18:39:21,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:21,543 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 [2022-03-03 18:39:21,543 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] [2022-03-03 18:39:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-03 18:39:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2022-03-03 18:39:21,545 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) [2022-03-03 18:39:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 705 transitions. [2022-03-03 18:39:21,546 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 705 transitions. Word has length 26 [2022-03-03 18:39:21,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:21,546 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 705 transitions. [2022-03-03 18:39:21,546 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) [2022-03-03 18:39:21,546 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 705 transitions. [2022-03-03 18:39:21,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:21,546 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:21,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:21,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-03 18:39:21,546 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:21,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:21,547 INFO L85 PathProgramCache]: Analyzing trace with hash 788638593, now seen corresponding path program 399 times [2022-03-03 18:39:21,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:21,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094719927] [2022-03-03 18:39:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:21,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:21,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:21,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094719927] [2022-03-03 18:39:21,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094719927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:21,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:21,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:21,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176486080] [2022-03-03 18:39:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:21,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:21,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:21,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:21,617 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) [2022-03-03 18:39:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:21,821 INFO L93 Difference]: Finished difference Result 447 states and 1032 transitions. [2022-03-03 18:39:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:21,821 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:21,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:21,821 INFO L225 Difference]: With dead ends: 447 [2022-03-03 18:39:21,821 INFO L226 Difference]: Without dead ends: 326 [2022-03-03 18:39:21,821 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 [2022-03-03 18:39:21,822 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 [2022-03-03 18:39:21,822 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] [2022-03-03 18:39:21,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-03-03 18:39:21,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2022-03-03 18:39:21,824 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) [2022-03-03 18:39:21,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 732 transitions. [2022-03-03 18:39:21,825 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 732 transitions. Word has length 26 [2022-03-03 18:39:21,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:21,825 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 732 transitions. [2022-03-03 18:39:21,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 732 transitions. [2022-03-03 18:39:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:21,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:21,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:21,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-03 18:39:21,825 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:21,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash -780289949, now seen corresponding path program 400 times [2022-03-03 18:39:21,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:21,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753228199] [2022-03-03 18:39:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:21,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:21,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753228199] [2022-03-03 18:39:21,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753228199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:21,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:21,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:21,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880219211] [2022-03-03 18:39:21,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:21,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:21,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:21,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:21,889 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) [2022-03-03 18:39:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:22,085 INFO L93 Difference]: Finished difference Result 451 states and 1024 transitions. [2022-03-03 18:39:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:22,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:22,086 INFO L225 Difference]: With dead ends: 451 [2022-03-03 18:39:22,086 INFO L226 Difference]: Without dead ends: 322 [2022-03-03 18:39:22,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,086 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 [2022-03-03 18:39:22,086 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] [2022-03-03 18:39:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-03-03 18:39:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 314. [2022-03-03 18:39:22,088 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) [2022-03-03 18:39:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 701 transitions. [2022-03-03 18:39:22,089 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 701 transitions. Word has length 26 [2022-03-03 18:39:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:22,089 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 701 transitions. [2022-03-03 18:39:22,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 701 transitions. [2022-03-03 18:39:22,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:22,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:22,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:22,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-03 18:39:22,089 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:22,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:22,090 INFO L85 PathProgramCache]: Analyzing trace with hash -937628007, now seen corresponding path program 401 times [2022-03-03 18:39:22,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:22,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589905716] [2022-03-03 18:39:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:22,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:22,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:22,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589905716] [2022-03-03 18:39:22,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589905716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:22,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:22,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:22,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135528165] [2022-03-03 18:39:22,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:22,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:22,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:22,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:22,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,152 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) [2022-03-03 18:39:22,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:22,337 INFO L93 Difference]: Finished difference Result 411 states and 939 transitions. [2022-03-03 18:39:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:22,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:22,338 INFO L225 Difference]: With dead ends: 411 [2022-03-03 18:39:22,338 INFO L226 Difference]: Without dead ends: 282 [2022-03-03 18:39:22,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,338 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:22,338 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] [2022-03-03 18:39:22,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-03 18:39:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 273. [2022-03-03 18:39:22,340 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) [2022-03-03 18:39:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 610 transitions. [2022-03-03 18:39:22,341 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 610 transitions. Word has length 26 [2022-03-03 18:39:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:22,341 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 610 transitions. [2022-03-03 18:39:22,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:22,341 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 610 transitions. [2022-03-03 18:39:22,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:22,341 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:22,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:22,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-03 18:39:22,341 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:22,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash -262127465, now seen corresponding path program 402 times [2022-03-03 18:39:22,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:22,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869827480] [2022-03-03 18:39:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:22,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:22,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:22,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869827480] [2022-03-03 18:39:22,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869827480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:22,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:22,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:22,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142446215] [2022-03-03 18:39:22,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:22,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:22,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:22,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:22,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,415 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) [2022-03-03 18:39:22,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:22,605 INFO L93 Difference]: Finished difference Result 364 states and 835 transitions. [2022-03-03 18:39:22,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:22,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:22,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:22,606 INFO L225 Difference]: With dead ends: 364 [2022-03-03 18:39:22,606 INFO L226 Difference]: Without dead ends: 253 [2022-03-03 18:39:22,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,606 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 [2022-03-03 18:39:22,606 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] [2022-03-03 18:39:22,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-03-03 18:39:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 244. [2022-03-03 18:39:22,608 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) [2022-03-03 18:39:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 553 transitions. [2022-03-03 18:39:22,609 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 553 transitions. Word has length 26 [2022-03-03 18:39:22,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:22,609 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 553 transitions. [2022-03-03 18:39:22,609 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) [2022-03-03 18:39:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 553 transitions. [2022-03-03 18:39:22,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:22,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:22,609 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] [2022-03-03 18:39:22,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-03 18:39:22,609 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:22,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:22,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1439375383, now seen corresponding path program 403 times [2022-03-03 18:39:22,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:22,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019180497] [2022-03-03 18:39:22,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:22,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:22,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:22,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019180497] [2022-03-03 18:39:22,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019180497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:22,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:22,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:22,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776797129] [2022-03-03 18:39:22,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:22,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:22,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:22,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:22,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,676 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) [2022-03-03 18:39:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:22,870 INFO L93 Difference]: Finished difference Result 350 states and 808 transitions. [2022-03-03 18:39:22,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:22,871 INFO L225 Difference]: With dead ends: 350 [2022-03-03 18:39:22,871 INFO L226 Difference]: Without dead ends: 250 [2022-03-03 18:39:22,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,871 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 [2022-03-03 18:39:22,871 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] [2022-03-03 18:39:22,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-03 18:39:22,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 244. [2022-03-03 18:39:22,873 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) [2022-03-03 18:39:22,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 552 transitions. [2022-03-03 18:39:22,874 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 552 transitions. Word has length 26 [2022-03-03 18:39:22,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:22,874 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 552 transitions. [2022-03-03 18:39:22,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 552 transitions. [2022-03-03 18:39:22,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:22,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:22,874 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] [2022-03-03 18:39:22,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-03 18:39:22,874 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash -111829895, now seen corresponding path program 404 times [2022-03-03 18:39:22,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:22,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010583703] [2022-03-03 18:39:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:22,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:22,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:22,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010583703] [2022-03-03 18:39:22,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010583703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:22,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:22,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:22,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901687625] [2022-03-03 18:39:22,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:22,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:22,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:22,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:22,938 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) [2022-03-03 18:39:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:23,130 INFO L93 Difference]: Finished difference Result 360 states and 826 transitions. [2022-03-03 18:39:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:23,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:23,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:23,131 INFO L225 Difference]: With dead ends: 360 [2022-03-03 18:39:23,131 INFO L226 Difference]: Without dead ends: 265 [2022-03-03 18:39:23,131 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 [2022-03-03 18:39:23,131 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 [2022-03-03 18:39:23,131 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] [2022-03-03 18:39:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-03 18:39:23,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 259. [2022-03-03 18:39:23,133 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) [2022-03-03 18:39:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 579 transitions. [2022-03-03 18:39:23,133 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 579 transitions. Word has length 26 [2022-03-03 18:39:23,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:23,134 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 579 transitions. [2022-03-03 18:39:23,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 579 transitions. [2022-03-03 18:39:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:23,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:23,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:23,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-03 18:39:23,134 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:23,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:23,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1503974441, now seen corresponding path program 405 times [2022-03-03 18:39:23,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:23,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152304630] [2022-03-03 18:39:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:23,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:23,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:23,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152304630] [2022-03-03 18:39:23,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152304630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:23,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:23,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:23,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210938528] [2022-03-03 18:39:23,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:23,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:23,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:23,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:23,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:23,199 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) [2022-03-03 18:39:23,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:23,385 INFO L93 Difference]: Finished difference Result 368 states and 838 transitions. [2022-03-03 18:39:23,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:23,385 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 [2022-03-03 18:39:23,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:23,386 INFO L225 Difference]: With dead ends: 368 [2022-03-03 18:39:23,386 INFO L226 Difference]: Without dead ends: 268 [2022-03-03 18:39:23,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:23,386 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:23,386 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] [2022-03-03 18:39:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-03-03 18:39:23,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 257. [2022-03-03 18:39:23,388 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) [2022-03-03 18:39:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 575 transitions. [2022-03-03 18:39:23,388 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 575 transitions. Word has length 26 [2022-03-03 18:39:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:23,389 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 575 transitions. [2022-03-03 18:39:23,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:23,389 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 575 transitions. [2022-03-03 18:39:23,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:23,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:23,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:23,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-03 18:39:23,389 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:23,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:23,389 INFO L85 PathProgramCache]: Analyzing trace with hash 378597293, now seen corresponding path program 406 times [2022-03-03 18:39:23,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:23,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407852921] [2022-03-03 18:39:23,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:23,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:23,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407852921] [2022-03-03 18:39:23,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407852921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:23,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:23,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:23,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503553914] [2022-03-03 18:39:23,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:23,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:23,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:23,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:23,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:23,452 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) [2022-03-03 18:39:23,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:23,644 INFO L93 Difference]: Finished difference Result 366 states and 838 transitions. [2022-03-03 18:39:23,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:23,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:23,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:23,644 INFO L225 Difference]: With dead ends: 366 [2022-03-03 18:39:23,645 INFO L226 Difference]: Without dead ends: 247 [2022-03-03 18:39:23,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:23,645 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 [2022-03-03 18:39:23,645 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] [2022-03-03 18:39:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-03 18:39:23,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2022-03-03 18:39:23,647 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) [2022-03-03 18:39:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 553 transitions. [2022-03-03 18:39:23,647 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 553 transitions. Word has length 26 [2022-03-03 18:39:23,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:23,647 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 553 transitions. [2022-03-03 18:39:23,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:23,647 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 553 transitions. [2022-03-03 18:39:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:23,648 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:23,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:23,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-03 18:39:23,648 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:23,648 INFO L85 PathProgramCache]: Analyzing trace with hash 881592293, now seen corresponding path program 407 times [2022-03-03 18:39:23,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:23,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306234669] [2022-03-03 18:39:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:23,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:23,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:23,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306234669] [2022-03-03 18:39:23,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306234669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:23,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:23,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:23,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225636431] [2022-03-03 18:39:23,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:23,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:23,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:23,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:23,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:23,722 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) [2022-03-03 18:39:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:23,905 INFO L93 Difference]: Finished difference Result 339 states and 779 transitions. [2022-03-03 18:39:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:23,905 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 [2022-03-03 18:39:23,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:23,905 INFO L225 Difference]: With dead ends: 339 [2022-03-03 18:39:23,905 INFO L226 Difference]: Without dead ends: 230 [2022-03-03 18:39:23,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:23,906 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:23,906 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] [2022-03-03 18:39:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-03-03 18:39:23,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-03-03 18:39:23,908 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) [2022-03-03 18:39:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 493 transitions. [2022-03-03 18:39:23,908 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 493 transitions. Word has length 26 [2022-03-03 18:39:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:23,908 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 493 transitions. [2022-03-03 18:39:23,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 493 transitions. [2022-03-03 18:39:23,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:23,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:23,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:23,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-03 18:39:23,909 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:23,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash 110431341, now seen corresponding path program 408 times [2022-03-03 18:39:23,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:23,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573755608] [2022-03-03 18:39:23,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:23,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:23,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:23,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573755608] [2022-03-03 18:39:23,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573755608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:23,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:23,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:23,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559603054] [2022-03-03 18:39:23,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:23,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:23,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:23,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:23,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:23,975 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) [2022-03-03 18:39:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:24,161 INFO L93 Difference]: Finished difference Result 318 states and 736 transitions. [2022-03-03 18:39:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:24,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:24,162 INFO L225 Difference]: With dead ends: 318 [2022-03-03 18:39:24,162 INFO L226 Difference]: Without dead ends: 213 [2022-03-03 18:39:24,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:24,162 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:24,162 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] [2022-03-03 18:39:24,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-03 18:39:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-03-03 18:39:24,164 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) [2022-03-03 18:39:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 485 transitions. [2022-03-03 18:39:24,164 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 485 transitions. Word has length 26 [2022-03-03 18:39:24,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:24,164 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 485 transitions. [2022-03-03 18:39:24,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:24,164 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 485 transitions. [2022-03-03 18:39:24,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:24,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:24,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:24,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-03 18:39:24,165 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:24,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:24,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1120912531, now seen corresponding path program 409 times [2022-03-03 18:39:24,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:24,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396361447] [2022-03-03 18:39:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:24,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:24,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:24,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:24,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396361447] [2022-03-03 18:39:24,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396361447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:24,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:24,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:24,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547349545] [2022-03-03 18:39:24,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:24,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:39:24,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:24,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:39:24,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:24,222 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) [2022-03-03 18:39:24,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:24,378 INFO L93 Difference]: Finished difference Result 318 states and 737 transitions. [2022-03-03 18:39:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:39:24,379 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 [2022-03-03 18:39:24,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:24,379 INFO L225 Difference]: With dead ends: 318 [2022-03-03 18:39:24,379 INFO L226 Difference]: Without dead ends: 215 [2022-03-03 18:39:24,379 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 [2022-03-03 18:39:24,379 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 [2022-03-03 18:39:24,379 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] [2022-03-03 18:39:24,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-03-03 18:39:24,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2022-03-03 18:39:24,381 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) [2022-03-03 18:39:24,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 487 transitions. [2022-03-03 18:39:24,381 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 487 transitions. Word has length 26 [2022-03-03 18:39:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:24,382 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 487 transitions. [2022-03-03 18:39:24,382 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) [2022-03-03 18:39:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 487 transitions. [2022-03-03 18:39:24,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:24,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:24,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:24,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-03 18:39:24,382 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:24,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:24,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1622849487, now seen corresponding path program 410 times [2022-03-03 18:39:24,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:24,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651780291] [2022-03-03 18:39:24,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:24,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:24,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:24,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:24,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651780291] [2022-03-03 18:39:24,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651780291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:24,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:24,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:24,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382097782] [2022-03-03 18:39:24,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:24,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:24,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:24,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:24,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:24,446 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) [2022-03-03 18:39:24,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:24,633 INFO L93 Difference]: Finished difference Result 325 states and 750 transitions. [2022-03-03 18:39:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:24,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:24,634 INFO L225 Difference]: With dead ends: 325 [2022-03-03 18:39:24,634 INFO L226 Difference]: Without dead ends: 227 [2022-03-03 18:39:24,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:24,634 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:24,635 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] [2022-03-03 18:39:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-03 18:39:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 220. [2022-03-03 18:39:24,636 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) [2022-03-03 18:39:24,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 499 transitions. [2022-03-03 18:39:24,637 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 499 transitions. Word has length 26 [2022-03-03 18:39:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:24,637 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 499 transitions. [2022-03-03 18:39:24,637 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) [2022-03-03 18:39:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 499 transitions. [2022-03-03 18:39:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:24,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:24,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:24,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-03 18:39:24,637 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:24,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:24,638 INFO L85 PathProgramCache]: Analyzing trace with hash 230704941, now seen corresponding path program 411 times [2022-03-03 18:39:24,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:24,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671309721] [2022-03-03 18:39:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:24,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:24,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:24,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671309721] [2022-03-03 18:39:24,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671309721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:24,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:24,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:24,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051797170] [2022-03-03 18:39:24,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:24,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:24,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:24,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:24,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:24,701 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) [2022-03-03 18:39:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:24,886 INFO L93 Difference]: Finished difference Result 331 states and 761 transitions. [2022-03-03 18:39:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:24,886 INFO L225 Difference]: With dead ends: 331 [2022-03-03 18:39:24,886 INFO L226 Difference]: Without dead ends: 220 [2022-03-03 18:39:24,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:24,887 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 46 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:24,887 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] [2022-03-03 18:39:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-03-03 18:39:24,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2022-03-03 18:39:24,888 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) [2022-03-03 18:39:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 492 transitions. [2022-03-03 18:39:24,889 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 492 transitions. Word has length 26 [2022-03-03 18:39:24,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:24,889 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 492 transitions. [2022-03-03 18:39:24,889 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) [2022-03-03 18:39:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 492 transitions. [2022-03-03 18:39:24,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:24,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:24,889 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] [2022-03-03 18:39:24,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-03 18:39:24,889 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:24,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:24,890 INFO L85 PathProgramCache]: Analyzing trace with hash 562071397, now seen corresponding path program 412 times [2022-03-03 18:39:24,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:24,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486367806] [2022-03-03 18:39:24,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:24,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:24,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:24,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486367806] [2022-03-03 18:39:24,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486367806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:24,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:24,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:24,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320479404] [2022-03-03 18:39:24,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:24,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:24,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:24,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:24,953 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) [2022-03-03 18:39:25,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:25,136 INFO L93 Difference]: Finished difference Result 313 states and 725 transitions. [2022-03-03 18:39:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:25,136 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 [2022-03-03 18:39:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:25,137 INFO L225 Difference]: With dead ends: 313 [2022-03-03 18:39:25,137 INFO L226 Difference]: Without dead ends: 199 [2022-03-03 18:39:25,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,137 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:25,137 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] [2022-03-03 18:39:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-03-03 18:39:25,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2022-03-03 18:39:25,139 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) [2022-03-03 18:39:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 451 transitions. [2022-03-03 18:39:25,139 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 451 transitions. Word has length 26 [2022-03-03 18:39:25,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:25,139 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 451 transitions. [2022-03-03 18:39:25,139 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) [2022-03-03 18:39:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 451 transitions. [2022-03-03 18:39:25,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:25,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:25,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:25,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-03 18:39:25,140 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:25,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:25,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1658405387, now seen corresponding path program 413 times [2022-03-03 18:39:25,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:25,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533921060] [2022-03-03 18:39:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:25,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:25,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:25,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533921060] [2022-03-03 18:39:25,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533921060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:25,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:25,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:25,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313408906] [2022-03-03 18:39:25,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:25,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:25,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:25,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:25,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,204 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) [2022-03-03 18:39:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:25,382 INFO L93 Difference]: Finished difference Result 296 states and 693 transitions. [2022-03-03 18:39:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:25,382 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:25,382 INFO L225 Difference]: With dead ends: 296 [2022-03-03 18:39:25,382 INFO L226 Difference]: Without dead ends: 191 [2022-03-03 18:39:25,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,382 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:25,383 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] [2022-03-03 18:39:25,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-03-03 18:39:25,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2022-03-03 18:39:25,384 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) [2022-03-03 18:39:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 441 transitions. [2022-03-03 18:39:25,384 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 441 transitions. Word has length 26 [2022-03-03 18:39:25,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:25,384 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 441 transitions. [2022-03-03 18:39:25,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 441 transitions. [2022-03-03 18:39:25,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:25,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:25,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:25,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-03 18:39:25,385 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:25,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:25,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1085356631, now seen corresponding path program 414 times [2022-03-03 18:39:25,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:25,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157982246] [2022-03-03 18:39:25,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:25,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:25,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:25,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157982246] [2022-03-03 18:39:25,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157982246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:25,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:25,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:25,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798905861] [2022-03-03 18:39:25,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:25,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:25,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,448 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) [2022-03-03 18:39:25,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:25,623 INFO L93 Difference]: Finished difference Result 294 states and 685 transitions. [2022-03-03 18:39:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:25,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-03 18:39:25,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:25,624 INFO L225 Difference]: With dead ends: 294 [2022-03-03 18:39:25,624 INFO L226 Difference]: Without dead ends: 181 [2022-03-03 18:39:25,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,624 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 44 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:25,624 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] [2022-03-03 18:39:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-03-03 18:39:25,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-03-03 18:39:25,626 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) [2022-03-03 18:39:25,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 415 transitions. [2022-03-03 18:39:25,626 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 415 transitions. Word has length 26 [2022-03-03 18:39:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:25,626 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 415 transitions. [2022-03-03 18:39:25,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 415 transitions. [2022-03-03 18:39:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:25,626 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:25,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:25,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-03 18:39:25,626 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash -306787915, now seen corresponding path program 415 times [2022-03-03 18:39:25,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:25,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956158142] [2022-03-03 18:39:25,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:25,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:25,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:25,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956158142] [2022-03-03 18:39:25,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956158142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:25,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:25,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:25,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617284335] [2022-03-03 18:39:25,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:25,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:25,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:25,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:25,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,690 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) [2022-03-03 18:39:25,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:25,857 INFO L93 Difference]: Finished difference Result 282 states and 659 transitions. [2022-03-03 18:39:25,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:25,857 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 [2022-03-03 18:39:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:25,858 INFO L225 Difference]: With dead ends: 282 [2022-03-03 18:39:25,858 INFO L226 Difference]: Without dead ends: 179 [2022-03-03 18:39:25,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,858 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 [2022-03-03 18:39:25,858 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] [2022-03-03 18:39:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-03-03 18:39:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-03-03 18:39:25,859 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) [2022-03-03 18:39:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 411 transitions. [2022-03-03 18:39:25,860 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 411 transitions. Word has length 26 [2022-03-03 18:39:25,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:25,860 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 411 transitions. [2022-03-03 18:39:25,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 411 transitions. [2022-03-03 18:39:25,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:39:25,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:25,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:25,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-03 18:39:25,860 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:39:25,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:25,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2078778819, now seen corresponding path program 416 times [2022-03-03 18:39:25,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:25,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139343632] [2022-03-03 18:39:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:25,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:25,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:25,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139343632] [2022-03-03 18:39:25,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139343632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:25,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:25,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 18:39:25,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079655874] [2022-03-03 18:39:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:25,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:39:25,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:39:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:25,940 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) [2022-03-03 18:39:26,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:26,080 INFO L93 Difference]: Finished difference Result 178 states and 410 transitions. [2022-03-03 18:39:26,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:39:26,080 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 [2022-03-03 18:39:26,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:26,081 INFO L225 Difference]: With dead ends: 178 [2022-03-03 18:39:26,081 INFO L226 Difference]: Without dead ends: 0 [2022-03-03 18:39:26,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:39:26,081 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 50 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:26,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 235 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:39:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-03 18:39:26,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-03 18:39:26,081 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) [2022-03-03 18:39:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-03 18:39:26,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-03-03 18:39:26,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:26,081 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-03 18:39:26,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:26,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-03 18:39:26,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-03 18:39:26,084 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-03 18:39:26,085 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-03 18:39:26,085 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-03 18:39:26,085 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-03 18:39:26,085 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-03 18:39:26,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-03 18:39:26,087 INFO L732 BasicCegarLoop]: Path program histogram: [416, 1, 1] [2022-03-03 18:39:26,089 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 18:39:26,089 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 18:39:26,091 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:39:26 BasicIcfg [2022-03-03 18:39:26,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 18:39:26,091 INFO L158 Benchmark]: Toolchain (without parser) took 127583.71ms. Allocated memory was 166.7MB in the beginning and 406.8MB in the end (delta: 240.1MB). Free memory was 126.9MB in the beginning and 225.5MB in the end (delta: -98.5MB). Peak memory consumption was 142.5MB. Max. memory is 8.0GB. [2022-03-03 18:39:26,091 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 166.7MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 18:39:26,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.04ms. Allocated memory is still 166.7MB. Free memory was 126.8MB in the beginning and 125.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 18:39:26,091 INFO L158 Benchmark]: Boogie Preprocessor took 8.61ms. Allocated memory is still 166.7MB. Free memory was 125.3MB in the beginning and 124.4MB in the end (delta: 909.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 18:39:26,092 INFO L158 Benchmark]: RCFGBuilder took 144.28ms. Allocated memory is still 166.7MB. Free memory was 124.4MB in the beginning and 116.5MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-03 18:39:26,092 INFO L158 Benchmark]: TraceAbstraction took 127404.45ms. Allocated memory was 166.7MB in the beginning and 406.8MB in the end (delta: 240.1MB). Free memory was 116.0MB in the beginning and 225.5MB in the end (delta: -109.4MB). Peak memory consumption was 130.9MB. Max. memory is 8.0GB. [2022-03-03 18:39:26,092 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 0.09ms. Allocated memory is still 166.7MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.04ms. Allocated memory is still 166.7MB. Free memory was 126.8MB in the beginning and 125.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 8.61ms. Allocated memory is still 166.7MB. Free memory was 125.3MB in the beginning and 124.4MB in the end (delta: 909.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 144.28ms. Allocated memory is still 166.7MB. Free memory was 124.4MB in the beginning and 116.5MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 127404.45ms. Allocated memory was 166.7MB in the beginning and 406.8MB in the end (delta: 240.1MB). Free memory was 116.0MB in the beginning and 225.5MB in the end (delta: -109.4MB). Peak memory consumption was 130.9MB. 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: 127.3s, OverallIterations: 418, TraceHistogramMax: 1, PathProgramHistogramMax: 416, EmptinessCheckTime: 0.6s, AutomataDifference: 91.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21622 SdHoareTripleChecker+Valid, 85.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21622 mSDsluCounter, 102830 SdHoareTripleChecker+Invalid, 69.7s 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, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3750 GetRequests, 109 SyntacticMatches, 416 SemanticMatches, 3225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.0s 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: 5.8s AutomataMinimizationTime, 418 MinimizatonAttempts, 33805 StatesRemovedByMinimization, 402 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 27.7s 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! [2022-03-03 18:39:26,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...