/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-MCRwithoutDepranks-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-c7b2d19 [2022-03-16 21:26:59,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 21:26:59,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 21:26:59,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-16 21:27:00,044 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-MCRwithoutDepranks-Lazy.epf [2022-03-16 21:27:00,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 21:27:00,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 21:27:00,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 21:27:00,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 21:27:00,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 21:27:00,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 21:27:00,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 21:27:00,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 21:27:00,080 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 21:27:00,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 21:27:00,081 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 21:27:00,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 21:27:00,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 21:27:00,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 21:27:00,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 21:27:00,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 21:27:00,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 21:27:00,082 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 21:27:00,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 21:27:00,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 21:27:00,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 21:27:00,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 21:27:00,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 21:27:00,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 21:27:00,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 21:27:00,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 21:27:00,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 21:27:00,084 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 21:27:00,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 21:27:00,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 21:27:00,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 21:27:00,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 21:27:00,084 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 21:27:00,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 21:27:00,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 21:27:00,085 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 21:27:00,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 21:27:00,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 21:27:00,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 21:27:00,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 21:27:00,356 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 21:27:00,357 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 21:27:00,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-03-16 21:27:00,359 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-03-16 21:27:00,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 21:27:00,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 21:27:00,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 21:27:00,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 21:27:00,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 21:27:00,401 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 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,406 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 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,413 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 21:27:00,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 21:27:00,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 21:27:00,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 21:27:00,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 21:27:00,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 21:27:00,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 21:27:00,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 21:27:00,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 21:27:00,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/1) ... [2022-03-16 21:27:00,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 21:27:00,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:00,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 21:27:00,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 21:27:00,507 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 21:27:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 21:27:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 21:27:00,508 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 21:27:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 21:27:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 21:27:00,508 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 21:27:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 21:27:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 21:27:00,509 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 21:27:00,549 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 21:27:00,551 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 21:27:00,617 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 21:27:00,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 21:27:00,623 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 21:27:00,624 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:27:00 BoogieIcfgContainer [2022-03-16 21:27:00,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 21:27:00,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 21:27:00,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 21:27:00,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 21:27:00,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 09:27:00" (1/2) ... [2022-03-16 21:27:00,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@818f6f4 and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:27:00, skipping insertion in model container [2022-03-16 21:27:00,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:27:00" (2/2) ... [2022-03-16 21:27:00,633 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-03-16 21:27:00,644 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 21:27:00,644 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 21:27:00,644 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 21:27:00,644 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 21:27:00,663 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,664 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,664 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,665 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,666 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,666 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,670 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,671 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,671 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,671 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,671 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,672 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,672 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,672 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,673 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,673 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,673 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,674 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,674 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,674 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,677 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,679 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:27:00,685 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 21:27:00,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 21:27:00,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:00,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 21:27:00,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 21:27:00,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 21:27:00,777 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 21:27:00,777 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 21:27:01,271 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 572 transitions and produced 516 states. [2022-03-16 21:27:01,274 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:27:01,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:27:01,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1945296583, now seen corresponding path program 1 times [2022-03-16 21:27:01,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:27:01,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858758197] [2022-03-16 21:27:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:27:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:27:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:27:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3470 backedges. 2462 proven. 957 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-16 21:27:02,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:27:02,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858758197] [2022-03-16 21:27:02,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858758197] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:27:02,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046493362] [2022-03-16 21:27:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:27:02,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:02,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:02,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:27:02,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 21:27:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:27:02,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 41 conjunts are in the unsatisfiable core [2022-03-16 21:27:02,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:27:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3470 backedges. 1452 proven. 1988 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-16 21:27:05,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:27:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3470 backedges. 2861 proven. 531 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-16 21:27:06,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046493362] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:27:06,184 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:27:06,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 42, 28] total 94 [2022-03-16 21:27:06,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369828838] [2022-03-16 21:27:06,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:27:06,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-03-16 21:27:06,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:27:06,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-03-16 21:27:06,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2728, Invalid=6014, Unknown=0, NotChecked=0, Total=8742 [2022-03-16 21:27:06,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:06,220 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:27:06,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 5.851063829787234) internal successors, (550), 94 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:27:06,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:10,713 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 963 transitions and produced 796 states. [2022-03-16 21:27:10,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:10,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 21:27:10,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-16 21:27:10,928 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:27:10,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:27:10,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1063054137, now seen corresponding path program 2 times [2022-03-16 21:27:10,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:27:10,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302645875] [2022-03-16 21:27:10,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:27:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:27:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:27:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 7008 backedges. 4187 proven. 2821 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:13,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:27:13,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302645875] [2022-03-16 21:27:13,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302645875] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:27:13,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915328613] [2022-03-16 21:27:13,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 21:27:13,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:13,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:13,576 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:27:13,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 21:27:13,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 21:27:13,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:27:13,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 66 conjunts are in the unsatisfiable core [2022-03-16 21:27:13,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:27:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 7008 backedges. 3494 proven. 2821 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-03-16 21:27:17,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:27:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7008 backedges. 3494 proven. 2821 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-03-16 21:27:18,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915328613] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:27:18,587 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:27:18,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 67, 67] total 150 [2022-03-16 21:27:18,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608584237] [2022-03-16 21:27:18,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:27:18,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 150 states [2022-03-16 21:27:18,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:27:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2022-03-16 21:27:18,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4038, Invalid=18312, Unknown=0, NotChecked=0, Total=22350 [2022-03-16 21:27:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:18,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:27:18,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 150 states, 150 states have (on average 4.173333333333333) internal successors, (626), 150 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:27:18,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:18,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:18,870 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 976 transitions and produced 809 states. [2022-03-16 21:27:18,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:27:18,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 21:27:19,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:19,096 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:27:19,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:27:19,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1627586453, now seen corresponding path program 3 times [2022-03-16 21:27:19,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:27:19,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258668766] [2022-03-16 21:27:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:27:19,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:27:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:27:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7195 backedges. 4187 proven. 3008 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:21,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:27:21,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258668766] [2022-03-16 21:27:21,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258668766] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:27:21,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889627883] [2022-03-16 21:27:21,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 21:27:21,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:21,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:21,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:27:21,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 21:27:21,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2022-03-16 21:27:21,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:27:21,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 88 conjunts are in the unsatisfiable core [2022-03-16 21:27:21,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:27:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 7195 backedges. 4187 proven. 3008 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:27,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:27:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7195 backedges. 4187 proven. 3008 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:29,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889627883] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:27:29,897 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:27:29,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89, 89] total 216 [2022-03-16 21:27:29,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608220653] [2022-03-16 21:27:29,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:27:29,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-03-16 21:27:29,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:27:29,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-03-16 21:27:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9758, Invalid=36682, Unknown=0, NotChecked=0, Total=46440 [2022-03-16 21:27:29,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:29,913 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:27:29,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 216 states have (on average 4.175925925925926) internal successors, (902), 216 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:27:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:27:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:30,345 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1041 transitions and produced 874 states. [2022-03-16 21:27:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:27:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:27:30,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 21:27:30,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:30,547 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:27:30,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:27:30,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1136473503, now seen corresponding path program 4 times [2022-03-16 21:27:30,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:27:30,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716629302] [2022-03-16 21:27:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:27:30,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:27:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:27:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8220 backedges. 4187 proven. 4033 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:33,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:27:33,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716629302] [2022-03-16 21:27:33,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716629302] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:27:33,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785654856] [2022-03-16 21:27:33,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 21:27:33,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:33,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:33,188 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:27:33,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 21:27:33,309 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 21:27:33,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:27:33,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 78 conjunts are in the unsatisfiable core [2022-03-16 21:27:33,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:27:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8220 backedges. 3827 proven. 4033 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-03-16 21:27:37,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:27:38,093 INFO L134 CoverageAnalysis]: Checked inductivity of 8220 backedges. 3827 proven. 4033 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-03-16 21:27:38,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785654856] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:27:38,094 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:27:38,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 79, 79] total 162 [2022-03-16 21:27:38,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616015758] [2022-03-16 21:27:38,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:27:38,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2022-03-16 21:27:38,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:27:38,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2022-03-16 21:27:38,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4515, Invalid=21567, Unknown=0, NotChecked=0, Total=26082 [2022-03-16 21:27:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:38,100 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:27:38,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 4.197530864197531) internal successors, (680), 162 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:27:38,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:38,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:27:38,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:27:38,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:38,575 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1054 transitions and produced 887 states. [2022-03-16 21:27:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:27:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:27:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:27:38,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 21:27:38,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:38,796 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:27:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:27:38,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1346445123, now seen corresponding path program 5 times [2022-03-16 21:27:38,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:27:38,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343497537] [2022-03-16 21:27:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:27:38,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:27:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:27:41,315 INFO L134 CoverageAnalysis]: Checked inductivity of 8443 backedges. 4187 proven. 4256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:41,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:27:41,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343497537] [2022-03-16 21:27:41,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343497537] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:27:41,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124442810] [2022-03-16 21:27:41,316 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 21:27:41,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:41,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:41,324 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:27:41,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 21:27:41,491 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2022-03-16 21:27:41,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:27:41,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-16 21:27:41,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:27:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8443 backedges. 4187 proven. 4256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:46,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:27:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 8443 backedges. 4187 proven. 4256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:49,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124442810] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:27:49,548 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:27:49,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 216 [2022-03-16 21:27:49,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771791930] [2022-03-16 21:27:49,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:27:49,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-03-16 21:27:49,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:27:49,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-03-16 21:27:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8753, Invalid=37687, Unknown=0, NotChecked=0, Total=46440 [2022-03-16 21:27:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:49,560 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:27:49,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 216 states have (on average 4.2592592592592595) internal successors, (920), 216 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:27:49,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:49,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:27:49,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:27:49,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:27:49,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:27:50,103 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1197 transitions and produced 1030 states. [2022-03-16 21:27:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:27:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:27:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:27:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:27:50,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:27:50,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 21:27:50,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:50,312 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:27:50,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:27:50,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1176054961, now seen corresponding path program 6 times [2022-03-16 21:27:50,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:27:50,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231183709] [2022-03-16 21:27:50,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:27:50,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:27:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:27:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 11292 backedges. 4187 proven. 7105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:53,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:27:53,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231183709] [2022-03-16 21:27:53,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231183709] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:27:53,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683399264] [2022-03-16 21:27:53,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 21:27:53,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:27:53,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:27:53,288 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:27:53,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 21:27:53,464 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 54 check-sat command(s) [2022-03-16 21:27:53,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:27:53,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 105 conjunts are in the unsatisfiable core [2022-03-16 21:27:53,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:27:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 11292 backedges. 4187 proven. 7105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:27:59,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:28:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 11292 backedges. 4187 proven. 7105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:28:00,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683399264] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:28:00,298 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:28:00,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106, 106] total 198 [2022-03-16 21:28:00,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146291502] [2022-03-16 21:28:00,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:28:00,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 198 states [2022-03-16 21:28:00,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:28:00,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2022-03-16 21:28:00,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6705, Invalid=32301, Unknown=0, NotChecked=0, Total=39006 [2022-03-16 21:28:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:28:00,305 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:28:00,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 198 states, 198 states have (on average 4.2727272727272725) internal successors, (846), 198 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:28:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:28:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:28:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:28:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:28:00,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:28:00,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:28:00,997 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1249 transitions and produced 1082 states. [2022-03-16 21:28:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:28:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:28:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:28:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:28:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:28:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:28:01,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 21:28:01,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:28:01,199 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:28:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:28:01,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1136089121, now seen corresponding path program 7 times [2022-03-16 21:28:01,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:28:01,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155182247] [2022-03-16 21:28:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:28:01,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:28:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:28:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12508 backedges. 0 proven. 12508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:28:16,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:28:16,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155182247] [2022-03-16 21:28:16,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155182247] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:28:16,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739294087] [2022-03-16 21:28:16,999 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 21:28:16,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:28:16,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:28:17,000 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:28:17,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 21:28:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:28:17,147 WARN L261 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 533 conjunts are in the unsatisfiable core [2022-03-16 21:28:17,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:28:18,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12508 backedges. 0 proven. 12508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:28:18,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:28:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12508 backedges. 0 proven. 12508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:28:20,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739294087] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:28:20,457 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:28:20,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 213, 213] total 213 [2022-03-16 21:28:20,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996173913] [2022-03-16 21:28:20,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:28:20,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 215 states [2022-03-16 21:28:20,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:28:20,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 215 interpolants. [2022-03-16 21:28:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=427, Invalid=45583, Unknown=0, NotChecked=0, Total=46010 [2022-03-16 21:28:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:28:20,461 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:28:20,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 215 states, 214 states have (on average 2.2850467289719627) internal successors, (489), 214 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:28:20,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:28:20,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:28:20,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:28:20,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:28:20,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:28:20,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:28:20,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:28:34,497 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1643 transitions and produced 1472 states. [2022-03-16 21:28:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:28:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:28:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:28:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:28:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:28:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:28:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:28:34,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 21:28:34,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 21:28:34,699 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:28:34,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:28:34,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1718632131, now seen corresponding path program 8 times [2022-03-16 21:28:34,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:28:34,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775966632] [2022-03-16 21:28:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:28:34,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:28:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:28:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 24688 backedges. 10908 proven. 13780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:28:39,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:28:39,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775966632] [2022-03-16 21:28:39,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775966632] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:28:39,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609706700] [2022-03-16 21:28:39,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 21:28:39,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:28:39,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:28:39,722 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:28:39,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 21:28:39,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 21:28:39,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:28:39,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 139 conjunts are in the unsatisfiable core [2022-03-16 21:28:39,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:28:47,043 INFO L134 CoverageAnalysis]: Checked inductivity of 24688 backedges. 20008 proven. 4680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:28:47,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:28:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 24688 backedges. 10908 proven. 13780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:28:53,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609706700] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:28:53,244 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:28:53,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [140, 140, 140] total 310 [2022-03-16 21:28:53,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453039777] [2022-03-16 21:28:53,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:28:53,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 310 states [2022-03-16 21:28:53,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:28:53,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 310 interpolants. [2022-03-16 21:28:53,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17759, Invalid=78031, Unknown=0, NotChecked=0, Total=95790 [2022-03-16 21:28:53,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:28:53,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:28:53,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 310 states, 310 states have (on average 4.664516129032258) internal successors, (1446), 310 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:28:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:28:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:28:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:28:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:28:53,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:28:53,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:28:53,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:28:53,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:29:08,401 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1852 transitions and produced 1655 states. [2022-03-16 21:29:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:29:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:29:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:29:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:29:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:29:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:29:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:29:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:29:08,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 21:29:08,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:29:08,608 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:29:08,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:29:08,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1857231593, now seen corresponding path program 9 times [2022-03-16 21:29:08,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:29:08,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868807125] [2022-03-16 21:29:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:29:08,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:29:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:29:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 30793 backedges. 0 proven. 30793 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:29:46,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:29:46,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868807125] [2022-03-16 21:29:46,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868807125] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:29:46,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586815211] [2022-03-16 21:29:46,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 21:29:46,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:29:46,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:29:46,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:29:46,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 21:29:46,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 84 check-sat command(s) [2022-03-16 21:29:46,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:29:46,586 WARN L261 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 833 conjunts are in the unsatisfiable core [2022-03-16 21:29:46,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:29:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 30793 backedges. 0 proven. 30793 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:29:49,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:29:51,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30793 backedges. 0 proven. 30793 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:29:51,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586815211] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:29:51,511 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:29:51,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [333, 333, 333] total 333 [2022-03-16 21:29:51,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080136028] [2022-03-16 21:29:51,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:29:51,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 335 states [2022-03-16 21:29:51,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:29:51,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 335 interpolants. [2022-03-16 21:29:51,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=667, Invalid=111223, Unknown=0, NotChecked=0, Total=111890 [2022-03-16 21:29:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:29:51,517 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:29:51,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 335 states, 334 states have (on average 2.2724550898203595) internal successors, (759), 334 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:29:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:30:25,106 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2246 transitions and produced 2045 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:30:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:30:25,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:30:25,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 21:30:25,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-16 21:30:25,309 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:30:25,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:30:25,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1233078517, now seen corresponding path program 10 times [2022-03-16 21:30:25,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:30:25,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676169355] [2022-03-16 21:30:25,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:30:25,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:30:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:30:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48373 backedges. 23268 proven. 25105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:30:35,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:30:35,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676169355] [2022-03-16 21:30:35,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676169355] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:30:35,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277864353] [2022-03-16 21:30:35,178 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 21:30:35,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:30:35,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:30:35,180 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:30:35,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 21:30:35,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 21:30:35,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:30:35,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 199 conjunts are in the unsatisfiable core [2022-03-16 21:30:35,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:30:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 48373 backedges. 37408 proven. 10965 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:30:47,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:30:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 48373 backedges. 23268 proven. 25105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:30:55,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277864353] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:30:55,458 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:30:55,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [200, 200, 200] total 400 [2022-03-16 21:30:55,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505403733] [2022-03-16 21:30:55,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:30:55,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 400 states [2022-03-16 21:30:55,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:30:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 400 interpolants. [2022-03-16 21:30:55,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29699, Invalid=129901, Unknown=0, NotChecked=0, Total=159600 [2022-03-16 21:30:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:30:55,486 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:30:55,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 400 states, 400 states have (on average 4.51) internal successors, (1804), 400 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:30:55,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:30:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:31:25,182 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2452 transitions and produced 2226 states. [2022-03-16 21:31:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:31:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:31:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:31:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:31:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:31:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:31:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:31:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:31:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:31:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2022-03-16 21:31:25,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 21:31:25,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 21:31:25,388 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:31:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:31:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash -347278415, now seen corresponding path program 11 times [2022-03-16 21:31:25,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:31:25,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489631847] [2022-03-16 21:31:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:31:25,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:31:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:32:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 57178 backedges. 0 proven. 57178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:32:33,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:32:33,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489631847] [2022-03-16 21:32:33,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489631847] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:32:33,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321686393] [2022-03-16 21:32:33,738 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 21:32:33,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:32:33,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:32:33,740 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:32:33,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 21:32:34,280 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 114 check-sat command(s) [2022-03-16 21:32:34,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:32:34,363 WARN L261 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 1133 conjunts are in the unsatisfiable core [2022-03-16 21:32:34,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:32:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 57178 backedges. 0 proven. 57178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:32:37,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:32:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 57178 backedges. 0 proven. 57178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:32:41,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321686393] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:32:41,036 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:32:41,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [453, 453, 453] total 453 [2022-03-16 21:32:41,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424616195] [2022-03-16 21:32:41,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:32:41,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 455 states [2022-03-16 21:32:41,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:32:41,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 455 interpolants. [2022-03-16 21:32:41,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=907, Invalid=205663, Unknown=0, NotChecked=0, Total=206570 [2022-03-16 21:32:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:32:41,049 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:32:41,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 455 states, 454 states have (on average 2.2665198237885464) internal successors, (1029), 454 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:32:41,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2022-03-16 21:32:41,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:33:42,500 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2846 transitions and produced 2616 states. [2022-03-16 21:33:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:33:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:33:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:33:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:33:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:33:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:33:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:33:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:33:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:33:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2022-03-16 21:33:42,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 455 states. [2022-03-16 21:33:42,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-03-16 21:33:42,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-16 21:33:42,716 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:33:42,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:33:42,717 INFO L85 PathProgramCache]: Analyzing trace with hash 575038803, now seen corresponding path program 12 times [2022-03-16 21:33:42,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:33:42,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115949113] [2022-03-16 21:33:42,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:33:42,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:33:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:33:59,880 INFO L134 CoverageAnalysis]: Checked inductivity of 80158 backedges. 41028 proven. 39130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:33:59,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:33:59,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115949113] [2022-03-16 21:33:59,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115949113] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:33:59,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532617027] [2022-03-16 21:33:59,881 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 21:33:59,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:33:59,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:33:59,883 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:33:59,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 21:34:00,655 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 144 check-sat command(s) [2022-03-16 21:34:00,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 21:34:00,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 2163 conjuncts, 259 conjunts are in the unsatisfiable core [2022-03-16 21:34:00,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:34:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 80158 backedges. 60208 proven. 19950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:34:18,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:34:29,150 INFO L134 CoverageAnalysis]: Checked inductivity of 80158 backedges. 41028 proven. 39130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:34:29,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532617027] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:34:29,151 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:34:29,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [260, 260, 260] total 490 [2022-03-16 21:34:29,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807500143] [2022-03-16 21:34:29,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:34:29,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 490 states [2022-03-16 21:34:29,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:34:29,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 490 interpolants. [2022-03-16 21:34:29,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45239, Invalid=194371, Unknown=0, NotChecked=0, Total=239610 [2022-03-16 21:34:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:34:29,182 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:34:29,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 490 states, 490 states have (on average 4.416326530612245) internal successors, (2164), 490 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 455 states. [2022-03-16 21:34:29,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:35:19,544 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3052 transitions and produced 2797 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2022-03-16 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 455 states. [2022-03-16 21:35:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 347 states. [2022-03-16 21:35:19,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-16 21:35:19,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-16 21:35:19,746 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 21:35:19,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:35:19,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1293065095, now seen corresponding path program 13 times [2022-03-16 21:35:19,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:35:19,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560833918] [2022-03-16 21:35:19,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:35:19,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:35:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:37:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 91663 backedges. 0 proven. 91663 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:37:10,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:37:10,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560833918] [2022-03-16 21:37:10,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560833918] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 21:37:10,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831226895] [2022-03-16 21:37:10,123 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 21:37:10,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:37:10,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:37:10,124 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 21:37:10,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 21:37:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:37:10,484 WARN L261 TraceCheckSpWp]: Trace formula consists of 2313 conjuncts, 1433 conjunts are in the unsatisfiable core [2022-03-16 21:37:10,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 21:37:14,678 INFO L134 CoverageAnalysis]: Checked inductivity of 91663 backedges. 0 proven. 91663 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:37:14,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 21:37:18,979 INFO L134 CoverageAnalysis]: Checked inductivity of 91663 backedges. 0 proven. 91663 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:37:18,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831226895] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 21:37:18,980 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 21:37:18,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [573, 573, 573] total 573 [2022-03-16 21:37:18,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289877769] [2022-03-16 21:37:18,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 21:37:18,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 575 states [2022-03-16 21:37:18,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:37:18,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 575 interpolants. [2022-03-16 21:37:18,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1147, Invalid=328903, Unknown=0, NotChecked=0, Total=330050 [2022-03-16 21:37:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:37:18,992 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:37:18,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 575 states, 574 states have (on average 2.2630662020905925) internal successors, (1299), 574 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 215 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 335 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 455 states. [2022-03-16 21:37:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 347 states. [2022-03-16 21:37:18,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 21:38:15,360 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 21:38:15,360 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 21:38:15,363 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 21:38:15,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-16 21:38:15,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 21:38:15,557 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-03-16 21:38:15,559 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 21:38:15,559 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 21:38:15,559 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 21:38:15,565 INFO L732 BasicCegarLoop]: Path program histogram: [13] [2022-03-16 21:38:15,567 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 21:38:15,568 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 21:38:15,571 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 09:38:15 BasicIcfg [2022-03-16 21:38:15,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 21:38:15,572 INFO L158 Benchmark]: Toolchain (without parser) took 675184.93ms. Allocated memory was 196.1MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 157.7MB in the beginning and 848.3MB in the end (delta: -690.6MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-16 21:38:15,572 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 21:38:15,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.73ms. Allocated memory is still 196.1MB. Free memory was 157.7MB in the beginning and 156.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 21:38:15,572 INFO L158 Benchmark]: Boogie Preprocessor took 15.77ms. Allocated memory is still 196.1MB. Free memory was 156.1MB in the beginning and 155.2MB in the end (delta: 952.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 21:38:15,572 INFO L158 Benchmark]: RCFGBuilder took 192.64ms. Allocated memory is still 196.1MB. Free memory was 155.1MB in the beginning and 146.5MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 21:38:15,572 INFO L158 Benchmark]: TraceAbstraction took 674945.25ms. Allocated memory was 196.1MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 146.0MB in the beginning and 848.3MB in the end (delta: -702.4MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-16 21:38:15,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.73ms. Allocated memory is still 196.1MB. Free memory was 157.7MB in the beginning and 156.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.77ms. Allocated memory is still 196.1MB. Free memory was 156.1MB in the beginning and 155.2MB in the end (delta: 952.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 192.64ms. Allocated memory is still 196.1MB. Free memory was 155.1MB in the beginning and 146.5MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 674945.25ms. Allocated memory was 196.1MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 146.0MB in the beginning and 848.3MB in the end (delta: -702.4MB). Peak memory consumption was 1.5GB. 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: 674.8s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 268.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2476, 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: 0.6s SsaConstructionTime, 10.5s SatisfiabilityAnalysisTime, 392.0s InterpolantComputationTime, 17214 NumberOfCodeBlocks, 17214 NumberOfCodeBlocksAsserted, 526 NumberOfCheckSat, 25782 ConstructedInterpolants, 0 QuantifiedInterpolants, 144494 SizeOfPredicates, 36 NumberOfNonLiveVariables, 15362 ConjunctsInSsa, 5001 ConjunctsInUnsatCore, 39 InterpolantComputations, 0 PerfectInterpolantSequences, 337771/1172967 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