/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.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-44898dd [2022-02-16 09:53:59,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 09:53:59,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 09:53:59,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 09:53:59,746 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.epf [2022-02-16 09:53:59,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 09:53:59,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 09:53:59,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 09:53:59,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 09:53:59,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 09:53:59,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 09:53:59,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 09:53:59,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 09:53:59,767 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 09:53:59,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 09:53:59,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 09:53:59,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 09:53:59,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 09:53:59,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 09:53:59,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 09:53:59,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 09:53:59,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 09:53:59,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 09:53:59,770 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 09:53:59,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 09:53:59,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 09:53:59,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 09:53:59,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 09:53:59,988 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 09:53:59,988 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 09:53:59,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-02-16 09:53:59,990 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-02-16 09:54:00,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 09:54:00,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 09:54:00,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 09:54:00,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 09:54:00,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 09:54:00,018 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 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,023 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 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,027 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 09:54:00,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 09:54:00,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 09:54:00,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 09:54:00,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 09:54:00,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 09:54:00,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 09:54:00,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 09:54:00,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 09:54:00,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/1) ... [2022-02-16 09:54:00,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 09:54:00,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:00,071 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) [2022-02-16 09:54:00,088 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 [2022-02-16 09:54:00,107 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 09:54:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 09:54:00,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 09:54:00,108 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 09:54:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 09:54:00,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 09:54:00,108 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 09:54:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 09:54:00,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 09:54:00,109 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 09:54:00,142 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 09:54:00,143 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 09:54:00,247 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 09:54:00,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 09:54:00,252 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 09:54:00,253 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 09:54:00 BoogieIcfgContainer [2022-02-16 09:54:00,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 09:54:00,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 09:54:00,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 09:54:00,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 09:54:00,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 09:54:00" (1/2) ... [2022-02-16 09:54:00,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5746d285 and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 09:54:00, skipping insertion in model container [2022-02-16 09:54:00,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 09:54:00" (2/2) ... [2022-02-16 09:54:00,271 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-02-16 09:54:00,274 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 09:54:00,274 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 09:54:00,274 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 09:54:00,275 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 09:54:00,289 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,289 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,289 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,289 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,290 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,290 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,291 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,291 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,291 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,291 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,291 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,292 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,292 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,292 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,292 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,293 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,293 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,293 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,293 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,293 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,296 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,297 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 09:54:00,299 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-16 09:54:00,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 09:54:00,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:00,342 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) [2022-02-16 09:54:00,343 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 [2022-02-16 09:54:00,377 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 09:54:00,389 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 [2022-02-16 09:54:00,389 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-16 09:54:00,475 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 397 transitions and produced 376 states. [2022-02-16 09:54:00,477 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:54:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:54:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1018363339, now seen corresponding path program 1 times [2022-02-16 09:54:00,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:54:00,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748753460] [2022-02-16 09:54:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:00,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:54:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:54:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 1119 proven. 874 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-16 09:54:01,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:54:01,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748753460] [2022-02-16 09:54:01,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748753460] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:54:01,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17506952] [2022-02-16 09:54:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:01,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:54:01,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:01,302 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) [2022-02-16 09:54:01,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 09:54:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:54:01,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-16 09:54:01,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:54:02,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 1069 proven. 942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:02,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:54:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 1119 proven. 874 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-16 09:54:03,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17506952] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:54:03,724 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:54:03,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 35, 29] total 82 [2022-02-16 09:54:03,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464141493] [2022-02-16 09:54:03,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:54:03,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-16 09:54:03,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:54:03,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-16 09:54:03,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1848, Invalid=4794, Unknown=0, NotChecked=0, Total=6642 [2022-02-16 09:54:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:03,758 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:54:03,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 5.646341463414634) internal successors, (463), 82 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:54:03,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:06,269 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 816 transitions and produced 709 states. [2022-02-16 09:54:06,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:06,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 09:54:06,483 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 [2022-02-16 09:54:06,484 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:54:06,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:54:06,484 INFO L85 PathProgramCache]: Analyzing trace with hash -427051351, now seen corresponding path program 2 times [2022-02-16 09:54:06,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:54:06,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15748583] [2022-02-16 09:54:06,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:06,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:54:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:54:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4011 backedges. 1964 proven. 2047 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:07,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:54:07,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15748583] [2022-02-16 09:54:07,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15748583] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:54:07,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817342877] [2022-02-16 09:54:07,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 09:54:07,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:54:07,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:07,836 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) [2022-02-16 09:54:07,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 09:54:07,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 09:54:07,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:54:07,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 56 conjunts are in the unsatisfiable core [2022-02-16 09:54:07,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:54:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4011 backedges. 1819 proven. 2027 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-16 09:54:10,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:54:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4011 backedges. 1819 proven. 2027 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-16 09:54:10,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817342877] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:54:10,767 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:54:10,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 57, 57] total 115 [2022-02-16 09:54:10,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076022695] [2022-02-16 09:54:10,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:54:10,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2022-02-16 09:54:10,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:54:10,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2022-02-16 09:54:10,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2295, Invalid=10815, Unknown=0, NotChecked=0, Total=13110 [2022-02-16 09:54:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:10,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:54:10,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 4.165217391304348) internal successors, (479), 115 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:54:10,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:10,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:10,923 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 637 transitions and produced 628 states. [2022-02-16 09:54:10,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:10,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:10,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 09:54:11,139 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 [2022-02-16 09:54:11,140 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:54:11,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:54:11,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1145750523, now seen corresponding path program 3 times [2022-02-16 09:54:11,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:54:11,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7241807] [2022-02-16 09:54:11,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:11,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:54:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:54:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4168 backedges. 1964 proven. 2204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:12,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:54:12,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7241807] [2022-02-16 09:54:12,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7241807] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:54:12,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672594148] [2022-02-16 09:54:12,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 09:54:12,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:54:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:12,384 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) [2022-02-16 09:54:12,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 09:54:12,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 37 check-sat command(s) [2022-02-16 09:54:12,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:54:12,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-16 09:54:12,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:54:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4168 backedges. 1964 proven. 2204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:15,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:54:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4168 backedges. 1964 proven. 2204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:16,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672594148] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:54:16,672 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:54:16,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68, 68] total 152 [2022-02-16 09:54:16,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796620234] [2022-02-16 09:54:16,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:54:16,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2022-02-16 09:54:16,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:54:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2022-02-16 09:54:16,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4276, Invalid=18676, Unknown=0, NotChecked=0, Total=22952 [2022-02-16 09:54:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:16,681 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:54:16,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 4.256578947368421) internal successors, (647), 152 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:54:16,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:16,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:16,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:16,973 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 754 transitions and produced 745 states. [2022-02-16 09:54:16,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:16,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:16,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:54:17,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 09:54:17,181 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 [2022-02-16 09:54:17,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:54:17,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:54:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2100929727, now seen corresponding path program 4 times [2022-02-16 09:54:17,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:54:17,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68665221] [2022-02-16 09:54:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:17,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:54:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:54:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5851 backedges. 1964 proven. 3887 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:18,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:54:18,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68665221] [2022-02-16 09:54:18,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68665221] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:54:18,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171413211] [2022-02-16 09:54:18,692 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 09:54:18,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:54:18,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:18,693 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) [2022-02-16 09:54:18,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 09:54:18,779 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 09:54:18,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:54:18,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 76 conjunts are in the unsatisfiable core [2022-02-16 09:54:18,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:54:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5851 backedges. 1964 proven. 3887 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:21,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:54:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5851 backedges. 1964 proven. 3887 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:22,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171413211] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:54:22,240 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:54:22,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77, 77] total 135 [2022-02-16 09:54:22,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464633623] [2022-02-16 09:54:22,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:54:22,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2022-02-16 09:54:22,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:54:22,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2022-02-16 09:54:22,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3090, Invalid=15000, Unknown=0, NotChecked=0, Total=18090 [2022-02-16 09:54:22,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:22,245 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:54:22,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 135 states have (on average 4.2) internal successors, (567), 135 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:54:22,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:22,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:22,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:54:22,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:22,584 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 767 transitions and produced 758 states. [2022-02-16 09:54:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:54:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:54:22,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-16 09:54:22,798 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 [2022-02-16 09:54:22,798 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:54:22,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:54:22,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1424486755, now seen corresponding path program 5 times [2022-02-16 09:54:22,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:54:22,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003734530] [2022-02-16 09:54:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:22,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:54:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:54:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 6068 backedges. 0 proven. 6062 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:54:29,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:54:29,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003734530] [2022-02-16 09:54:29,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003734530] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:54:29,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816789225] [2022-02-16 09:54:29,987 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 09:54:29,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:54:29,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:29,989 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) [2022-02-16 09:54:29,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 09:54:30,097 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 38 check-sat command(s) [2022-02-16 09:54:30,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:54:30,104 WARN L261 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 373 conjunts are in the unsatisfiable core [2022-02-16 09:54:30,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:54:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6068 backedges. 0 proven. 6062 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:54:31,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:54:32,281 INFO L134 CoverageAnalysis]: Checked inductivity of 6068 backedges. 0 proven. 6062 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:54:32,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816789225] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:54:32,282 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:54:32,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [145, 145, 145] total 145 [2022-02-16 09:54:32,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947859466] [2022-02-16 09:54:32,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:54:32,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2022-02-16 09:54:32,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:54:32,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2022-02-16 09:54:32,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=21171, Unknown=0, NotChecked=0, Total=21462 [2022-02-16 09:54:32,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:32,285 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:54:32,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 146 states have (on average 2.3219178082191783) internal successors, (339), 146 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:54:32,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:32,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:32,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:54:32,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:54:32,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:38,698 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1025 transitions and produced 1016 states. [2022-02-16 09:54:38,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:38,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:38,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:54:38,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:54:38,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:54:38,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-16 09:54:38,900 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 [2022-02-16 09:54:38,902 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:54:38,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:54:38,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1007278623, now seen corresponding path program 6 times [2022-02-16 09:54:38,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:54:38,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944215078] [2022-02-16 09:54:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:38,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:54:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:54:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 11668 backedges. 5059 proven. 6609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:41,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:54:41,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944215078] [2022-02-16 09:54:41,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944215078] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:54:41,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331655041] [2022-02-16 09:54:41,181 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 09:54:41,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:54:41,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:54:41,182 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) [2022-02-16 09:54:41,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 09:54:41,331 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 58 check-sat command(s) [2022-02-16 09:54:41,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:54:41,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 97 conjunts are in the unsatisfiable core [2022-02-16 09:54:41,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:54:44,758 INFO L134 CoverageAnalysis]: Checked inductivity of 11668 backedges. 9296 proven. 2372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:44,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:54:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 11668 backedges. 5059 proven. 6609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:54:47,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331655041] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:54:47,728 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:54:47,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 213 [2022-02-16 09:54:47,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027096401] [2022-02-16 09:54:47,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:54:47,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-02-16 09:54:47,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:54:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-02-16 09:54:47,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8442, Invalid=36714, Unknown=0, NotChecked=0, Total=45156 [2022-02-16 09:54:47,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:47,735 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:54:47,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 4.676056338028169) internal successors, (996), 213 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:54:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:54:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:54:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:54:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:54:55,967 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1373 transitions and produced 1239 states. [2022-02-16 09:54:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:54:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:54:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:54:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:54:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:54:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:54:55,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-16 09:54:56,168 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 [2022-02-16 09:54:56,169 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:54:56,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:54:56,169 INFO L85 PathProgramCache]: Analyzing trace with hash 536674253, now seen corresponding path program 7 times [2022-02-16 09:54:56,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:54:56,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818449509] [2022-02-16 09:54:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:54:56,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:54:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:55:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 14472 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:55:12,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:55:12,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818449509] [2022-02-16 09:55:12,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818449509] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:55:12,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032867295] [2022-02-16 09:55:12,381 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-16 09:55:12,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:55:12,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:55:12,382 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) [2022-02-16 09:55:12,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-16 09:55:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:55:12,534 WARN L261 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 573 conjunts are in the unsatisfiable core [2022-02-16 09:55:12,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:55:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 14472 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:55:14,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:55:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 14472 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:55:15,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032867295] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:55:15,569 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:55:15,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [225, 225, 225] total 225 [2022-02-16 09:55:15,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384392969] [2022-02-16 09:55:15,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:55:15,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 227 states [2022-02-16 09:55:15,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:55:15,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 227 interpolants. [2022-02-16 09:55:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=50851, Unknown=0, NotChecked=0, Total=51302 [2022-02-16 09:55:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:55:15,573 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:55:15,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 227 states, 226 states have (on average 2.2964601769911503) internal successors, (519), 226 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:55:15,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:55:15,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:55:15,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:55:15,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:55:15,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:55:15,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:55:15,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:55:29,759 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1421 transitions and produced 1393 states. [2022-02-16 09:55:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:55:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:55:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:55:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:55:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:55:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:55:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:55:29,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-16 09:55:29,960 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 [2022-02-16 09:55:29,960 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:55:29,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:55:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash -734462897, now seen corresponding path program 8 times [2022-02-16 09:55:29,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:55:29,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280154063] [2022-02-16 09:55:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:55:29,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:55:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:55:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 22478 backedges. 10659 proven. 11819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:55:34,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:55:34,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280154063] [2022-02-16 09:55:34,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280154063] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:55:34,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778413801] [2022-02-16 09:55:34,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 09:55:34,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:55:34,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:55:34,265 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) [2022-02-16 09:55:34,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-16 09:55:34,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 09:55:34,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:55:34,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 137 conjunts are in the unsatisfiable core [2022-02-16 09:55:34,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:55:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 22478 backedges. 17176 proven. 5302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:55:39,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:55:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 22478 backedges. 10659 proven. 11819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:55:43,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778413801] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:55:43,650 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:55:43,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [138, 138, 138] total 273 [2022-02-16 09:55:43,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899507825] [2022-02-16 09:55:43,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:55:43,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 273 states [2022-02-16 09:55:43,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:55:43,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 273 interpolants. [2022-02-16 09:55:43,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13922, Invalid=60334, Unknown=0, NotChecked=0, Total=74256 [2022-02-16 09:55:43,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:55:43,657 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:55:43,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 273 states, 273 states have (on average 4.527472527472527) internal successors, (1236), 273 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:55:43,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:55:43,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:55:43,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:55:43,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:55:43,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:55:43,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:55:43,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:55:43,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:55:57,044 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1773 transitions and produced 1620 states. [2022-02-16 09:55:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:55:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:55:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:55:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:55:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:55:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:55:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:55:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:55:57,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-16 09:55:57,247 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 [2022-02-16 09:55:57,248 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:55:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:55:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1336430845, now seen corresponding path program 9 times [2022-02-16 09:55:57,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:55:57,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995968098] [2022-02-16 09:55:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:55:57,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:55:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:56:26,282 INFO L134 CoverageAnalysis]: Checked inductivity of 26488 backedges. 0 proven. 26482 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:56:26,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:56:26,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995968098] [2022-02-16 09:56:26,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995968098] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:56:26,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480808463] [2022-02-16 09:56:26,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 09:56:26,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:56:26,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:56:26,283 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) [2022-02-16 09:56:26,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-16 09:56:26,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 78 check-sat command(s) [2022-02-16 09:56:26,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:56:26,573 WARN L261 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 773 conjunts are in the unsatisfiable core [2022-02-16 09:56:26,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:56:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 26488 backedges. 0 proven. 26482 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:56:28,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:56:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 26488 backedges. 0 proven. 26482 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:56:30,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480808463] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:56:30,608 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:56:30,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [305, 305, 305] total 305 [2022-02-16 09:56:30,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952219294] [2022-02-16 09:56:30,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:56:30,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 307 states [2022-02-16 09:56:30,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:56:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 307 interpolants. [2022-02-16 09:56:30,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=611, Invalid=93331, Unknown=0, NotChecked=0, Total=93942 [2022-02-16 09:56:30,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:56:30,613 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:56:30,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 307 states, 306 states have (on average 2.284313725490196) internal successors, (699), 306 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:56:30,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:56:56,661 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1821 transitions and produced 1774 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:56:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:56:56,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2022-02-16 09:56:56,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-16 09:56:56,863 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 [2022-02-16 09:56:56,864 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:56:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:56:56,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1414594945, now seen corresponding path program 10 times [2022-02-16 09:56:56,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:56:56,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617178349] [2022-02-16 09:56:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:56:56,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:56:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:57:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 36888 backedges. 18659 proven. 18229 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:57:04,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:57:04,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617178349] [2022-02-16 09:57:04,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617178349] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:57:04,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045825425] [2022-02-16 09:57:04,171 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 09:57:04,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:57:04,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:57:04,172 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) [2022-02-16 09:57:04,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-16 09:57:04,377 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 09:57:04,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:57:04,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 177 conjunts are in the unsatisfiable core [2022-02-16 09:57:04,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:57:12,494 INFO L134 CoverageAnalysis]: Checked inductivity of 36888 backedges. 27456 proven. 9432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:57:12,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:57:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 36888 backedges. 18659 proven. 18229 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:57:17,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045825425] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:57:17,232 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:57:17,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [178, 178, 178] total 333 [2022-02-16 09:57:17,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806433875] [2022-02-16 09:57:17,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:57:17,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 333 states [2022-02-16 09:57:17,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:57:17,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 333 interpolants. [2022-02-16 09:57:17,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21002, Invalid=89554, Unknown=0, NotChecked=0, Total=110556 [2022-02-16 09:57:17,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:57:17,244 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:57:17,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 333 states, 333 states have (on average 4.4324324324324325) internal successors, (1476), 333 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:57:17,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:57:17,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:57:17,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:57:17,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:57:17,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:57:17,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:57:17,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:57:17,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:57:17,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2022-02-16 09:57:17,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:57:37,335 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2173 transitions and produced 2001 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:57:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2022-02-16 09:57:37,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-02-16 09:57:37,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-16 09:57:37,555 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 [2022-02-16 09:57:37,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:57:37,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:57:37,556 INFO L85 PathProgramCache]: Analyzing trace with hash 234226221, now seen corresponding path program 11 times [2022-02-16 09:57:37,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:57:37,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921695209] [2022-02-16 09:57:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:57:37,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:57:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:58:23,478 INFO L134 CoverageAnalysis]: Checked inductivity of 42098 backedges. 0 proven. 42092 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:58:23,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:58:23,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921695209] [2022-02-16 09:58:23,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921695209] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:58:23,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54543826] [2022-02-16 09:58:23,479 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 09:58:23,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:58:23,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:58:23,480 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) [2022-02-16 09:58:23,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-16 09:58:23,914 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 98 check-sat command(s) [2022-02-16 09:58:23,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:58:23,966 WARN L261 TraceCheckSpWp]: Trace formula consists of 1577 conjuncts, 973 conjunts are in the unsatisfiable core [2022-02-16 09:58:23,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:58:26,479 INFO L134 CoverageAnalysis]: Checked inductivity of 42098 backedges. 0 proven. 42092 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:58:26,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:58:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 42098 backedges. 0 proven. 42092 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 09:58:29,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54543826] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:58:29,027 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:58:29,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [385, 385, 385] total 385 [2022-02-16 09:58:29,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882751488] [2022-02-16 09:58:29,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:58:29,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 387 states [2022-02-16 09:58:29,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:58:29,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 387 interpolants. [2022-02-16 09:58:29,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=771, Invalid=148611, Unknown=0, NotChecked=0, Total=149382 [2022-02-16 09:58:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:58:29,033 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:58:29,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 387 states, 386 states have (on average 2.27720207253886) internal successors, (879), 386 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2022-02-16 09:58:29,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-02-16 09:58:29,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:59:10,225 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2221 transitions and produced 2155 states. [2022-02-16 09:59:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:59:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:59:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:59:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:59:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:59:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:59:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:59:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:59:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2022-02-16 09:59:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-02-16 09:59:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-16 09:59:10,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-02-16 09:59:10,436 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 [2022-02-16 09:59:10,437 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 09:59:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 09:59:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1384636591, now seen corresponding path program 12 times [2022-02-16 09:59:10,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 09:59:10,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796535780] [2022-02-16 09:59:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 09:59:10,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 09:59:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 09:59:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 54898 backedges. 29059 proven. 25839 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:59:21,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 09:59:21,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796535780] [2022-02-16 09:59:21,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796535780] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 09:59:21,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686963519] [2022-02-16 09:59:21,177 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 09:59:21,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 09:59:21,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 09:59:21,178 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) [2022-02-16 09:59:21,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-16 09:59:21,603 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 118 check-sat command(s) [2022-02-16 09:59:21,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 09:59:21,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 217 conjunts are in the unsatisfiable core [2022-02-16 09:59:21,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 09:59:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 54898 backedges. 40136 proven. 14762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:59:32,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 09:59:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 54898 backedges. 29059 proven. 25839 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 09:59:38,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686963519] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 09:59:38,560 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 09:59:38,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [218, 218, 218] total 393 [2022-02-16 09:59:38,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705542415] [2022-02-16 09:59:38,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 09:59:38,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 393 states [2022-02-16 09:59:38,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 09:59:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 393 interpolants. [2022-02-16 09:59:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29682, Invalid=124374, Unknown=0, NotChecked=0, Total=154056 [2022-02-16 09:59:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 09:59:38,572 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 09:59:38,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 393 states, 393 states have (on average 4.366412213740458) internal successors, (1716), 393 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 09:59:38,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 09:59:38,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 09:59:38,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 09:59:38,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 09:59:38,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 09:59:38,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 09:59:38,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 09:59:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2022-02-16 09:59:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2022-02-16 09:59:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-02-16 09:59:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-16 09:59:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:00:10,742 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2573 transitions and produced 2382 states. [2022-02-16 10:00:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 10:00:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 10:00:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 10:00:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-16 10:00:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2022-02-16 10:00:10,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-16 10:00:10,943 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 [2022-02-16 10:00:10,945 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 10:00:10,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:00:10,945 INFO L85 PathProgramCache]: Analyzing trace with hash 516035421, now seen corresponding path program 13 times [2022-02-16 10:00:10,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:00:10,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301249700] [2022-02-16 10:00:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:00:10,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:00:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:01:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 10:01:18,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:01:18,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301249700] [2022-02-16 10:01:18,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301249700] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:01:18,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452697858] [2022-02-16 10:01:18,274 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-16 10:01:18,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:01:18,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:01:18,276 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) [2022-02-16 10:01:18,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-16 10:01:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:01:18,549 WARN L261 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 1173 conjunts are in the unsatisfiable core [2022-02-16 10:01:18,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:01:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 10:01:21,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:01:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 10:01:24,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452697858] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:01:24,883 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:01:24,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [465, 465, 465] total 465 [2022-02-16 10:01:24,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758857154] [2022-02-16 10:01:24,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:01:24,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 467 states [2022-02-16 10:01:24,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:01:24,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 467 interpolants. [2022-02-16 10:01:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=931, Invalid=216691, Unknown=0, NotChecked=0, Total=217622 [2022-02-16 10:01:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:01:24,892 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:01:24,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 467 states, 466 states have (on average 2.272532188841202) internal successors, (1059), 466 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:01:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 10:01:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 10:01:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 10:01:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 10:01:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 352 states. [2022-02-16 10:01:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:02:25,195 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2621 transitions and produced 2536 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2022-02-16 10:02:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-02-16 10:02:25,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-16 10:02:25,397 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 [2022-02-16 10:02:25,397 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 10:02:25,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:02:25,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1759486687, now seen corresponding path program 14 times [2022-02-16 10:02:25,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:02:25,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128421271] [2022-02-16 10:02:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:02:25,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:02:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:02:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 76508 backedges. 41859 proven. 34649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 10:02:40,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:02:40,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128421271] [2022-02-16 10:02:40,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128421271] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:02:40,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916556255] [2022-02-16 10:02:40,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 10:02:40,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:02:40,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:02:40,663 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) [2022-02-16 10:02:40,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-16 10:02:40,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 10:02:40,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:02:40,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 257 conjunts are in the unsatisfiable core [2022-02-16 10:02:40,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:02:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 76508 backedges. 55216 proven. 21292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 10:02:55,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:03:02,583 INFO L134 CoverageAnalysis]: Checked inductivity of 76508 backedges. 41859 proven. 34649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 10:03:02,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916556255] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:03:02,583 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:03:02,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 258, 258] total 453 [2022-02-16 10:03:02,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841442243] [2022-02-16 10:03:02,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:03:02,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 453 states [2022-02-16 10:03:02,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:03:02,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 453 interpolants. [2022-02-16 10:03:02,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39962, Invalid=164794, Unknown=0, NotChecked=0, Total=204756 [2022-02-16 10:03:02,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:03:02,599 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:03:02,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 453 states, 453 states have (on average 4.317880794701987) internal successors, (1956), 453 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 352 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-02-16 10:03:02,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:03:49,651 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2973 transitions and produced 2763 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-02-16 10:03:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 392 states. [2022-02-16 10:03:49,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-16 10:03:49,853 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 [2022-02-16 10:03:49,853 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 10:03:49,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:03:49,853 INFO L85 PathProgramCache]: Analyzing trace with hash 904430733, now seen corresponding path program 15 times [2022-02-16 10:03:49,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:03:49,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715970443] [2022-02-16 10:03:49,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:03:49,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:03:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:05:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 84118 backedges. 0 proven. 84112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 10:05:21,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:05:21,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715970443] [2022-02-16 10:05:21,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715970443] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:05:21,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672311811] [2022-02-16 10:05:21,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 10:05:21,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:05:21,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:05:21,192 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:05:21,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-16 10:05:21,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 138 check-sat command(s) [2022-02-16 10:05:21,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:05:21,985 WARN L261 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 1373 conjunts are in the unsatisfiable core [2022-02-16 10:05:21,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:05:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 84118 backedges. 0 proven. 84112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 10:05:25,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:05:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 84118 backedges. 0 proven. 84112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 10:05:28,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672311811] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:05:28,994 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:05:28,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [545, 545, 545] total 545 [2022-02-16 10:05:28,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634737022] [2022-02-16 10:05:28,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:05:28,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 547 states [2022-02-16 10:05:28,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:05:28,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 547 interpolants. [2022-02-16 10:05:29,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1091, Invalid=297571, Unknown=0, NotChecked=0, Total=298662 [2022-02-16 10:05:29,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:05:29,008 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:05:29,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 547 states, 546 states have (on average 2.269230769230769) internal successors, (1239), 546 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 352 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 392 states. [2022-02-16 10:05:29,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-16 10:05:47,118 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 [2022-02-16 10:05:47,118 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 [2022-02-16 10:05:47,118 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 10:05:47,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-16 10:05:47,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-16 10:05:47,360 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-16 10:05:47,362 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-16 10:05:47,362 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-16 10:05:47,362 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-16 10:05:47,366 INFO L732 BasicCegarLoop]: Path program histogram: [15] [2022-02-16 10:05:47,368 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 10:05:47,368 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 10:05:47,369 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 10:05:47 BasicIcfg [2022-02-16 10:05:47,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 10:05:47,369 INFO L158 Benchmark]: Toolchain (without parser) took 707360.67ms. Allocated memory was 176.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 138.9MB in the beginning and 342.2MB in the end (delta: -203.3MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-02-16 10:05:47,370 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 10:05:47,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.03ms. Allocated memory is still 176.2MB. Free memory was 138.8MB in the beginning and 137.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-16 10:05:47,370 INFO L158 Benchmark]: Boogie Preprocessor took 12.17ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 136.3MB in the end (delta: 960.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 10:05:47,370 INFO L158 Benchmark]: RCFGBuilder took 210.04ms. Allocated memory is still 176.2MB. Free memory was 136.3MB in the beginning and 127.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-16 10:05:47,370 INFO L158 Benchmark]: TraceAbstraction took 707114.86ms. Allocated memory was 176.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 127.1MB in the beginning and 342.2MB in the end (delta: -215.0MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-02-16 10:05:47,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.03ms. Allocated memory is still 176.2MB. Free memory was 138.8MB in the beginning and 137.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.17ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 136.3MB in the end (delta: 960.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 210.04ms. Allocated memory is still 176.2MB. Free memory was 136.3MB in the beginning and 127.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 707114.86ms. Allocated memory was 176.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 127.1MB in the beginning and 342.2MB in the end (delta: -215.0MB). Peak memory consumption was 1.4GB. 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 executing DepthFirstTraversal. - 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 executing DepthFirstTraversal. - 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 executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 707.0s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 290.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3435, 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, 9.9s SatisfiabilityAnalysisTime, 402.1s InterpolantComputationTime, 19962 NumberOfCodeBlocks, 19962 NumberOfCodeBlocksAsserted, 591 NumberOfCheckSat, 29898 ConstructedInterpolants, 0 QuantifiedInterpolants, 167966 SizeOfPredicates, 36 NumberOfNonLiveVariables, 17832 ConjunctsInSsa, 6356 ConjunctsInUnsatCore, 45 InterpolantComputations, 0 PerfectInterpolantSequences, 381037/1359117 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