/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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 03:26:36,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 03:26:36,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 03:26:36,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-02 03:26:36,789 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-02 03:26:36,810 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 03:26:36,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 03:26:36,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 03:26:36,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 03:26:36,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 03:26:36,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 03:26:36,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 03:26:36,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 03:26:36,817 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 03:26:36,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 03:26:36,817 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 03:26:36,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 03:26:36,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 03:26:36,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 03:26:36,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 03:26:36,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 03:26:36,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 03:26:36,818 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 03:26:36,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 03:26:36,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 03:26:36,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 03:26:36,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 03:26:36,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 03:26:36,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 03:26:36,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 03:26:36,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 03:26:36,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 03:26:36,821 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 03:26:36,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 03:26:36,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 03:26:36,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 03:26:36,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 03:26:36,822 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 03:26:36,822 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 03:26:36,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 03:26:36,822 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 03:26:36,822 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 03:26:36,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 03:26:37,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 03:26:37,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 03:26:37,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 03:26:37,035 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 03:26:37,036 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 03:26:37,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-03-02 03:26:37,037 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-03-02 03:26:37,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 03:26:37,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 03:26:37,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 03:26:37,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 03:26:37,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 03:26:37,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,089 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 03:26:37,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 03:26:37,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 03:26:37,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 03:26:37,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 03:26:37,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 03:26:37,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 03:26:37,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 03:26:37,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 03:26:37,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/1) ... [2022-03-02 03:26:37,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 03:26:37,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:26:37,153 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) [2022-03-02 03:26:37,168 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 [2022-03-02 03:26:37,196 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 03:26:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 03:26:37,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 03:26:37,196 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 03:26:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 03:26:37,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 03:26:37,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 03:26:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 03:26:37,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 03:26:37,198 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 03:26:37,235 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 03:26:37,237 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 03:26:37,305 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 03:26:37,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 03:26:37,311 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 03:26:37,312 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 03:26:37 BoogieIcfgContainer [2022-03-02 03:26:37,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 03:26:37,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 03:26:37,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 03:26:37,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 03:26:37,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 03:26:37" (1/2) ... [2022-03-02 03:26:37,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12280672 and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 03:26:37, skipping insertion in model container [2022-03-02 03:26:37,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 03:26:37" (2/2) ... [2022-03-02 03:26:37,320 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-03-02 03:26:37,324 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 03:26:37,324 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 03:26:37,324 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 03:26:37,325 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 03:26:37,344 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,345 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,345 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,345 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,346 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,346 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,347 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,348 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,348 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,348 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,348 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,349 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,349 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,349 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,350 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,350 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,350 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,351 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,351 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,351 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,354 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,356 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 03:26:37,359 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 03:26:37,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 03:26:37,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:26:37,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 03:26:37,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 03:26:37,428 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 03:26:37,435 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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=false, mMcrOverapproximateWrwc=true [2022-03-02 03:26:37,435 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 03:26:37,528 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 562 transitions and produced 454 states. [2022-03-02 03:26:37,530 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:26:37,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:26:37,535 INFO L85 PathProgramCache]: Analyzing trace with hash -337619345, now seen corresponding path program 1 times [2022-03-02 03:26:37,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:26:37,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210443218] [2022-03-02 03:26:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:26:37,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:26:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:26:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 976 proven. 872 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 03:26:38,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:26:38,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210443218] [2022-03-02 03:26:38,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210443218] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:26:38,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59681423] [2022-03-02 03:26:38,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:26:38,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:26:38,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:26:38,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:26:38,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 03:26:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:26:38,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-02 03:26:38,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:26:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1068 proven. 792 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:26:40,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:26:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 976 proven. 872 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 03:26:41,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59681423] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:26:41,332 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:26:41,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 34, 30] total 83 [2022-03-02 03:26:41,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953629513] [2022-03-02 03:26:41,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:26:41,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-03-02 03:26:41,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:26:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-03-02 03:26:41,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1780, Invalid=5026, Unknown=0, NotChecked=0, Total=6806 [2022-03-02 03:26:41,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:26:41,383 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:26:41,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 5.445783132530121) internal successors, (452), 83 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:26:41,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:26:44,517 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 796 transitions and produced 688 states. [2022-03-02 03:26:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:26:44,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-02 03:26:44,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 03:26:44,719 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:26:44,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:26:44,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1400513483, now seen corresponding path program 2 times [2022-03-02 03:26:44,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:26:44,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453532270] [2022-03-02 03:26:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:26:44,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:26:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:26:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3751 backedges. 1857 proven. 1894 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:26:46,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:26:46,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453532270] [2022-03-02 03:26:46,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453532270] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:26:46,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309013508] [2022-03-02 03:26:46,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 03:26:46,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:26:46,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:26:46,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:26:46,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 03:26:46,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 03:26:46,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:26:46,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 54 conjunts are in the unsatisfiable core [2022-03-02 03:26:46,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:26:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3751 backedges. 1712 proven. 1874 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-02 03:26:49,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:26:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3751 backedges. 1712 proven. 1874 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-02 03:26:49,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309013508] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:26:49,615 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:26:49,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 55, 55] total 111 [2022-03-02 03:26:49,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54942214] [2022-03-02 03:26:49,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:26:49,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2022-03-02 03:26:49,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:26:49,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2022-03-02 03:26:49,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2137, Invalid=10073, Unknown=0, NotChecked=0, Total=12210 [2022-03-02 03:26:49,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:26:49,625 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:26:49,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 4.153153153153153) internal successors, (461), 111 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:26:49,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:26:49,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:26:49,796 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 617 transitions and produced 607 states. [2022-03-02 03:26:49,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:26:49,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:26:49,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 03:26:50,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:26:50,013 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:26:50,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:26:50,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2038718631, now seen corresponding path program 3 times [2022-03-02 03:26:50,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:26:50,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502324118] [2022-03-02 03:26:50,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:26:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:26:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:26:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 1857 proven. 2045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:26:51,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:26:51,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502324118] [2022-03-02 03:26:51,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502324118] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:26:51,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361934952] [2022-03-02 03:26:51,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 03:26:51,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:26:51,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:26:51,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:26:51,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 03:26:51,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2022-03-02 03:26:51,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:26:51,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 65 conjunts are in the unsatisfiable core [2022-03-02 03:26:51,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:26:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 1857 proven. 2045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:26:54,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:26:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 1857 proven. 2045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:26:56,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361934952] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:26:56,042 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:26:56,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 148 [2022-03-02 03:26:56,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115914143] [2022-03-02 03:26:56,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:26:56,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 148 states [2022-03-02 03:26:56,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:26:56,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2022-03-02 03:26:56,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4062, Invalid=17694, Unknown=0, NotChecked=0, Total=21756 [2022-03-02 03:26:56,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:26:56,049 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:26:56,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 148 states, 148 states have (on average 4.25) internal successors, (629), 148 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:26:56,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:26:56,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:26:56,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:26:56,323 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 734 transitions and produced 724 states. [2022-03-02 03:26:56,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:26:56,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:26:56,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:26:56,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 03:26:56,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:26:56,532 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:26:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:26:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1726272355, now seen corresponding path program 4 times [2022-03-02 03:26:56,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:26:56,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49975928] [2022-03-02 03:26:56,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:26:56,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:26:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:26:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5531 backedges. 1857 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:26:58,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:26:58,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49975928] [2022-03-02 03:26:58,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49975928] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:26:58,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063023721] [2022-03-02 03:26:58,140 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 03:26:58,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:26:58,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:26:58,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:26:58,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 03:26:58,234 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 03:26:58,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:26:58,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 74 conjunts are in the unsatisfiable core [2022-03-02 03:26:58,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:27:01,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5531 backedges. 1857 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:27:01,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:27:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5531 backedges. 1857 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:27:01,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063023721] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:27:01,994 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:27:01,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75, 75] total 131 [2022-03-02 03:27:01,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946355876] [2022-03-02 03:27:01,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:27:01,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-03-02 03:27:01,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:27:01,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-03-02 03:27:01,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2912, Invalid=14118, Unknown=0, NotChecked=0, Total=17030 [2022-03-02 03:27:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:27:01,999 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:27:02,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 4.190839694656488) internal successors, (549), 131 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:27:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:27:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:27:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:27:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:27:02,365 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 747 transitions and produced 737 states. [2022-03-02 03:27:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:27:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:27:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:27:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:27:02,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 03:27:02,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:27:02,572 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:27:02,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:27:02,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1599930817, now seen corresponding path program 5 times [2022-03-02 03:27:02,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:27:02,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563596873] [2022-03-02 03:27:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:27:02,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:27:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:27:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5742 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:27:10,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:27:10,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563596873] [2022-03-02 03:27:10,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563596873] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:27:10,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496023494] [2022-03-02 03:27:10,312 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 03:27:10,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:27:10,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:27:10,314 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:27:10,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 03:27:10,440 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2022-03-02 03:27:10,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:27:10,451 WARN L261 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 363 conjunts are in the unsatisfiable core [2022-03-02 03:27:10,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:27:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5742 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:27:11,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:27:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5742 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:27:12,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496023494] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:27:12,811 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:27:12,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [141, 141, 141] total 141 [2022-03-02 03:27:12,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351520728] [2022-03-02 03:27:12,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:27:12,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-03-02 03:27:12,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:27:12,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-03-02 03:27:12,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=20023, Unknown=0, NotChecked=0, Total=20306 [2022-03-02 03:27:12,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:27:12,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:27:12,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 2.323943661971831) internal successors, (330), 142 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:27:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:27:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:27:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:27:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:27:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:27:19,255 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 992 transitions and produced 982 states. [2022-03-02 03:27:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:27:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:27:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:27:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:27:19,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:27:19,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-02 03:27:19,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:27:19,470 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:27:19,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:27:19,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1591010011, now seen corresponding path program 6 times [2022-03-02 03:27:19,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:27:19,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619534030] [2022-03-02 03:27:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:27:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:27:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:27:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10891 backedges. 4734 proven. 6157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:27:21,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:27:21,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619534030] [2022-03-02 03:27:21,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619534030] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:27:21,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748582503] [2022-03-02 03:27:21,869 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 03:27:21,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:27:21,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:27:21,870 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:27:21,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 03:27:22,027 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2022-03-02 03:27:22,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:27:22,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-02 03:27:22,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:27:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 10891 backedges. 8640 proven. 2251 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:27:25,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:27:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 10891 backedges. 4734 proven. 6157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:27:28,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748582503] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:27:28,504 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:27:28,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 205 [2022-03-02 03:27:28,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792331959] [2022-03-02 03:27:28,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:27:28,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 205 states [2022-03-02 03:27:28,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:27:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2022-03-02 03:27:28,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7826, Invalid=33994, Unknown=0, NotChecked=0, Total=41820 [2022-03-02 03:27:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:27:28,513 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:27:28,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 205 states, 205 states have (on average 4.668292682926829) internal successors, (957), 205 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:27:28,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:27:28,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:27:28,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:27:28,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:27:28,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:27:28,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:27:37,239 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1323 transitions and produced 1194 states. [2022-03-02 03:27:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:27:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:27:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:27:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:27:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:27:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:27:37,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-02 03:27:37,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:27:37,440 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:27:37,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:27:37,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1645087373, now seen corresponding path program 7 times [2022-03-02 03:27:37,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:27:37,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327427197] [2022-03-02 03:27:37,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:27:37,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:27:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:27:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 13475 backedges. 0 proven. 13469 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:27:54,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:27:54,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327427197] [2022-03-02 03:27:54,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327427197] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:27:54,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465343128] [2022-03-02 03:27:54,249 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 03:27:54,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:27:54,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:27:54,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:27:54,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 03:27:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:27:54,415 WARN L261 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 553 conjunts are in the unsatisfiable core [2022-03-02 03:27:54,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:27:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 13475 backedges. 0 proven. 13469 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:27:56,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:27:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 13475 backedges. 0 proven. 13469 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:27:57,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465343128] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:27:57,847 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:27:57,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [217, 217, 217] total 217 [2022-03-02 03:27:57,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820665231] [2022-03-02 03:27:57,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:27:57,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 219 states [2022-03-02 03:27:57,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:27:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 219 interpolants. [2022-03-02 03:27:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=47307, Unknown=0, NotChecked=0, Total=47742 [2022-03-02 03:27:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:27:57,851 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:27:57,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 219 states, 218 states have (on average 2.2981651376146788) internal successors, (501), 218 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:27:57,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:27:57,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:27:57,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:27:57,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:27:57,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:27:57,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:27:57,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:28:12,386 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1368 transitions and produced 1340 states. [2022-03-02 03:28:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:28:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:28:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:28:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:28:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:28:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:28:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:28:12,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-02 03:28:12,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 03:28:12,588 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:28:12,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:28:12,588 INFO L85 PathProgramCache]: Analyzing trace with hash -857774669, now seen corresponding path program 8 times [2022-03-02 03:28:12,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:28:12,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642393129] [2022-03-02 03:28:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:28:12,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:28:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:28:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 9883 proven. 10907 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:28:17,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:28:17,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642393129] [2022-03-02 03:28:17,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642393129] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:28:17,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429028341] [2022-03-02 03:28:17,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 03:28:17,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:28:17,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:28:17,077 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:28:17,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 03:28:17,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 03:28:17,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:28:17,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 132 conjunts are in the unsatisfiable core [2022-03-02 03:28:17,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:28:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 15841 proven. 4949 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:28:22,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:28:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 9883 proven. 10907 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:28:26,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429028341] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:28:26,775 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:28:26,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 133, 133] total 262 [2022-03-02 03:28:26,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554781376] [2022-03-02 03:28:26,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:28:26,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 262 states [2022-03-02 03:28:26,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:28:26,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 262 interpolants. [2022-03-02 03:28:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12842, Invalid=55540, Unknown=0, NotChecked=0, Total=68382 [2022-03-02 03:28:26,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:28:26,783 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:28:26,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 262 states, 262 states have (on average 4.522900763358779) internal successors, (1185), 262 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:28:26,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:28:40,565 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1703 transitions and produced 1556 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:28:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:28:40,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-02 03:28:40,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:28:40,766 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:28:40,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:28:40,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1985458407, now seen corresponding path program 9 times [2022-03-02 03:28:40,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:28:40,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329414050] [2022-03-02 03:28:40,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:28:40,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:28:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:29:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 24457 backedges. 0 proven. 24451 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:29:10,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:29:10,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329414050] [2022-03-02 03:29:10,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329414050] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:29:10,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344491883] [2022-03-02 03:29:10,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 03:29:10,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:29:10,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:29:10,534 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:29:10,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 03:29:10,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 75 check-sat command(s) [2022-03-02 03:29:10,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:29:10,827 WARN L261 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 743 conjunts are in the unsatisfiable core [2022-03-02 03:29:10,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:29:13,048 INFO L134 CoverageAnalysis]: Checked inductivity of 24457 backedges. 0 proven. 24451 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:29:13,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:29:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 24457 backedges. 0 proven. 24451 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:29:15,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344491883] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:29:15,237 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:29:15,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [293, 293, 293] total 293 [2022-03-02 03:29:15,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451215690] [2022-03-02 03:29:15,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:29:15,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 295 states [2022-03-02 03:29:15,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:29:15,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 295 interpolants. [2022-03-02 03:29:15,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=587, Invalid=86143, Unknown=0, NotChecked=0, Total=86730 [2022-03-02 03:29:15,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:29:15,241 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:29:15,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 295 states, 294 states have (on average 2.2857142857142856) internal successors, (672), 294 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:29:15,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:29:15,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:29:15,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:29:15,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:29:15,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:29:15,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:29:15,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:29:15,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:29:15,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:29:40,970 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1748 transitions and produced 1702 states. [2022-03-02 03:29:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:29:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:29:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:29:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:29:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:29:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:29:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:29:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:29:40,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:29:40,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-02 03:29:41,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 03:29:41,175 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:29:41,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:29:41,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1949507507, now seen corresponding path program 10 times [2022-03-02 03:29:41,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:29:41,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730604659] [2022-03-02 03:29:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:29:41,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:29:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:29:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 33938 backedges. 17198 proven. 16740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:29:48,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:29:48,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730604659] [2022-03-02 03:29:48,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730604659] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:29:48,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380648654] [2022-03-02 03:29:48,638 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 03:29:48,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:29:48,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:29:48,639 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:29:48,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 03:29:48,860 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 03:29:48,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:29:48,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 170 conjunts are in the unsatisfiable core [2022-03-02 03:29:48,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:29:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 33938 backedges. 25208 proven. 8730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:29:57,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:30:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 33938 backedges. 17198 proven. 16740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:30:01,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380648654] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:30:01,857 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:30:01,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [171, 171, 171] total 319 [2022-03-02 03:30:01,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314845133] [2022-03-02 03:30:01,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:30:01,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 319 states [2022-03-02 03:30:01,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:30:01,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 319 interpolants. [2022-03-02 03:30:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19302, Invalid=82140, Unknown=0, NotChecked=0, Total=101442 [2022-03-02 03:30:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:30:01,873 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:30:01,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 319 states, 319 states have (on average 4.429467084639499) internal successors, (1413), 319 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:30:01,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:30:01,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:30:01,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:30:01,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:30:01,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:30:01,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:30:01,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:30:01,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:30:01,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:30:01,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:30:22,616 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2083 transitions and produced 1918 states. [2022-03-02 03:30:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:30:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:30:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:30:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:30:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:30:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:30:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:30:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:30:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:30:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:30:22,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-02 03:30:22,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-02 03:30:22,819 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:30:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:30:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1522509515, now seen corresponding path program 11 times [2022-03-02 03:30:22,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:30:22,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003829162] [2022-03-02 03:30:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:30:22,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:30:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:31:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 38688 backedges. 0 proven. 38682 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:31:09,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:31:09,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003829162] [2022-03-02 03:31:09,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003829162] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:31:09,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365913810] [2022-03-02 03:31:09,132 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 03:31:09,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:31:09,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:31:09,134 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:31:09,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-02 03:31:09,512 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 94 check-sat command(s) [2022-03-02 03:31:09,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:31:09,549 WARN L261 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 933 conjunts are in the unsatisfiable core [2022-03-02 03:31:09,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:31:12,205 INFO L134 CoverageAnalysis]: Checked inductivity of 38688 backedges. 0 proven. 38682 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:31:12,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:31:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 38688 backedges. 0 proven. 38682 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:31:14,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365913810] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:31:14,893 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:31:14,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [369, 369, 369] total 369 [2022-03-02 03:31:14,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36342046] [2022-03-02 03:31:14,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:31:14,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 371 states [2022-03-02 03:31:14,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:31:14,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 371 interpolants. [2022-03-02 03:31:14,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=739, Invalid=136531, Unknown=0, NotChecked=0, Total=137270 [2022-03-02 03:31:14,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:31:14,899 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:31:14,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 371 states, 370 states have (on average 2.2783783783783784) internal successors, (843), 370 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:31:14,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:31:55,425 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2128 transitions and produced 2064 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:31:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:31:55,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-03-02 03:31:55,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-02 03:31:55,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-02 03:31:55,636 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:31:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:31:55,636 INFO L85 PathProgramCache]: Analyzing trace with hash -245041957, now seen corresponding path program 12 times [2022-03-02 03:31:55,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:31:55,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651252779] [2022-03-02 03:31:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:31:55,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:31:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:32:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 50335 backedges. 26679 proven. 23656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:32:06,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:32:06,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651252779] [2022-03-02 03:32:06,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651252779] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:32:06,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043055849] [2022-03-02 03:32:06,406 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 03:32:06,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:32:06,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:32:06,407 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:32:06,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-02 03:32:06,854 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 113 check-sat command(s) [2022-03-02 03:32:06,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:32:06,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 208 conjunts are in the unsatisfiable core [2022-03-02 03:32:06,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:32:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 50335 backedges. 36741 proven. 13594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:32:18,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:32:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 50335 backedges. 26679 proven. 23656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:32:24,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043055849] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:32:24,075 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:32:24,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [209, 209, 209] total 376 [2022-03-02 03:32:24,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952704324] [2022-03-02 03:32:24,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:32:24,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 376 states [2022-03-02 03:32:24,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:32:24,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 376 interpolants. [2022-03-02 03:32:24,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27206, Invalid=113794, Unknown=0, NotChecked=0, Total=141000 [2022-03-02 03:32:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:32:24,086 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:32:24,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 376 states, 376 states have (on average 4.36436170212766) internal successors, (1641), 376 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-03-02 03:32:24,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:32:58,526 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2463 transitions and produced 2280 states. [2022-03-02 03:32:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:32:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:32:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:32:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:32:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:32:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:32:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:32:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:32:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:32:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:32:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-03-02 03:32:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-03-02 03:32:58,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-02 03:32:58,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-02 03:32:58,728 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:32:58,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:32:58,728 INFO L85 PathProgramCache]: Analyzing trace with hash 827606129, now seen corresponding path program 13 times [2022-03-02 03:32:58,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:32:58,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883001293] [2022-03-02 03:32:58,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:32:58,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:32:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:34:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 56168 backedges. 0 proven. 56162 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:34:05,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:34:05,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883001293] [2022-03-02 03:34:05,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883001293] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:34:05,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209788878] [2022-03-02 03:34:05,120 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 03:34:05,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:34:05,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:34:05,124 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:34:05,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-02 03:34:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:34:05,439 WARN L261 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 1123 conjunts are in the unsatisfiable core [2022-03-02 03:34:05,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:34:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 56168 backedges. 0 proven. 56162 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:34:08,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:34:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 56168 backedges. 0 proven. 56162 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 03:34:12,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209788878] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:34:12,032 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:34:12,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [445, 445, 445] total 445 [2022-03-02 03:34:12,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741512371] [2022-03-02 03:34:12,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:34:12,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 447 states [2022-03-02 03:34:12,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:34:12,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 447 interpolants. [2022-03-02 03:34:12,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=891, Invalid=198471, Unknown=0, NotChecked=0, Total=199362 [2022-03-02 03:34:12,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:34:12,040 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:34:12,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 447 states, 446 states have (on average 2.273542600896861) internal successors, (1014), 446 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 336 states. [2022-03-02 03:34:12,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:35:10,586 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2508 transitions and produced 2426 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-03-02 03:35:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-03-02 03:35:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2022-03-02 03:35:10,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-02 03:35:10,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:35:10,789 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:35:10,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:35:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2140953461, now seen corresponding path program 14 times [2022-03-02 03:35:10,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:35:10,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504175652] [2022-03-02 03:35:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:35:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:35:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 03:35:25,723 INFO L134 CoverageAnalysis]: Checked inductivity of 69981 backedges. 38326 proven. 31655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:35:25,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 03:35:25,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504175652] [2022-03-02 03:35:25,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504175652] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 03:35:25,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461716945] [2022-03-02 03:35:25,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 03:35:25,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:35:25,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 03:35:25,725 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 03:35:25,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-02 03:35:25,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 03:35:25,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 03:35:26,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 246 conjunts are in the unsatisfiable core [2022-03-02 03:35:26,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 03:35:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 69981 backedges. 50440 proven. 19541 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:35:40,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 03:35:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 69981 backedges. 38326 proven. 31655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 03:35:47,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461716945] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 03:35:47,362 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 03:35:47,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [247, 247, 247] total 433 [2022-03-02 03:35:47,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820069691] [2022-03-02 03:35:47,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 03:35:47,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 433 states [2022-03-02 03:35:47,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 03:35:47,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 433 interpolants. [2022-03-02 03:35:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36554, Invalid=150502, Unknown=0, NotChecked=0, Total=187056 [2022-03-02 03:35:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:35:47,386 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 03:35:47,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 433 states, 433 states have (on average 4.316397228637413) internal successors, (1869), 433 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 336 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 447 states. [2022-03-02 03:35:47,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 03:36:35,359 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2843 transitions and produced 2642 states. [2022-03-02 03:36:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2022-03-02 03:36:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 374 states. [2022-03-02 03:36:35,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-02 03:36:35,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 03:36:35,563 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 03:36:35,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 03:36:35,564 INFO L85 PathProgramCache]: Analyzing trace with hash 368721885, now seen corresponding path program 15 times [2022-03-02 03:36:35,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 03:36:35,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483228962] [2022-03-02 03:36:35,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 03:36:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 03:36:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-02 03:37:57,633 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-02 03:37:57,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-02 03:37:57,634 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1192 with TraceHistMax 131,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. [2022-03-02 03:37:57,635 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-02 03:37:57,635 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 03:37:57,640 INFO L732 BasicCegarLoop]: Path program histogram: [15] [2022-03-02 03:37:57,642 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 03:37:57,642 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 03:37:57,646 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 03:37:57 BasicIcfg [2022-03-02 03:37:57,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 03:37:57,646 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 03:37:57,647 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 03:37:57,647 INFO L158 Benchmark]: Toolchain (without parser) took 680582.92ms. Allocated memory was 191.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 151.8MB in the beginning and 560.0MB in the end (delta: -408.2MB). Peak memory consumption was 896.7MB. Max. memory is 8.0GB. [2022-03-02 03:37:57,647 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 03:37:57,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.89ms. Allocated memory is still 191.9MB. Free memory was 151.8MB in the beginning and 150.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-02 03:37:57,648 INFO L158 Benchmark]: Boogie Preprocessor took 15.60ms. Allocated memory is still 191.9MB. Free memory was 150.2MB in the beginning and 149.3MB in the end (delta: 928.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 03:37:57,648 INFO L158 Benchmark]: RCFGBuilder took 203.19ms. Allocated memory is still 191.9MB. Free memory was 149.3MB in the beginning and 140.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-02 03:37:57,648 INFO L158 Benchmark]: TraceAbstraction took 680332.14ms. Allocated memory was 191.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 140.3MB in the beginning and 560.0MB in the end (delta: -419.7MB). Peak memory consumption was 885.2MB. Max. memory is 8.0GB. [2022-03-02 03:37:57,650 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 0.13ms. Allocated memory is still 191.9MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.89ms. Allocated memory is still 191.9MB. Free memory was 151.8MB in the beginning and 150.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.60ms. Allocated memory is still 191.9MB. Free memory was 150.2MB in the beginning and 149.3MB in the end (delta: 928.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 203.19ms. Allocated memory is still 191.9MB. Free memory was 149.3MB in the beginning and 140.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 680332.14ms. Allocated memory was 191.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 140.3MB in the beginning and 560.0MB in the end (delta: -419.7MB). Peak memory consumption was 885.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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 - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1192 with TraceHistMax 131,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1192 with TraceHistMax 131,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1192 with TraceHistMax 131,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 680.2s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 275.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 8.2s SatisfiabilityAnalysisTime, 310.2s InterpolantComputationTime, 16806 NumberOfCodeBlocks, 16806 NumberOfCodeBlocksAsserted, 436 NumberOfCheckSat, 25167 ConstructedInterpolants, 0 QuantifiedInterpolants, 136283 SizeOfPredicates, 36 NumberOfNonLiveVariables, 15021 ConjunctsInSsa, 4791 ConjunctsInUnsatCore, 42 InterpolantComputations, 0 PerfectInterpolantSequences, 350397/1018527 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown