/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 06:59:06,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 06:59:06,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 06:59:06,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-29 06:59:06,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf [2022-01-29 06:59:06,152 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 06:59:06,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 06:59:06,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 06:59:06,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 06:59:06,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 06:59:06,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 06:59:06,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 06:59:06,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 06:59:06,154 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 06:59:06,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 06:59:06,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 06:59:06,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 06:59:06,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 06:59:06,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 06:59:06,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 06:59:06,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 06:59:06,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 06:59:06,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 06:59:06,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 06:59:06,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 06:59:06,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 06:59:06,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 06:59:06,158 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 06:59:06,158 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 06:59:06,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 06:59:06,158 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-01-29 06:59:06,158 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 06:59:06,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 06:59:06,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 06:59:06,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 06:59:06,351 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 06:59:06,354 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 06:59:06,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl [2022-01-29 06:59:06,355 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl' [2022-01-29 06:59:06,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 06:59:06,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 06:59:06,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 06:59:06,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 06:59:06,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 06:59:06,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,410 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 06:59:06,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 06:59:06,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 06:59:06,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 06:59:06,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 06:59:06,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 06:59:06,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 06:59:06,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 06:59:06,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 06:59:06,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/1) ... [2022-01-29 06:59:06,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 06:59:06,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 06:59:06,464 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) [2022-01-29 06:59:06,473 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 [2022-01-29 06:59:06,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process2 given in one single declaration [2022-01-29 06:59:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure Process2 [2022-01-29 06:59:06,492 INFO L138 BoogieDeclarations]: Found implementation of procedure Process2 [2022-01-29 06:59:06,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2022-01-29 06:59:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2022-01-29 06:59:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2022-01-29 06:59:06,493 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-29 06:59:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 06:59:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 06:59:06,493 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Clock given in one single declaration [2022-01-29 06:59:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure Clock [2022-01-29 06:59:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure Clock [2022-01-29 06:59:06,494 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 06:59:06,530 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 06:59:06,531 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 06:59:06,607 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 06:59:06,612 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 06:59:06,612 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-29 06:59:06,613 INFO L202 PluginConnector]: Adding new model FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 06:59:06 BoogieIcfgContainer [2022-01-29 06:59:06,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 06:59:06,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 06:59:06,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 06:59:06,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 06:59:06,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:59:06" (1/2) ... [2022-01-29 06:59:06,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab84478 and model type FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 06:59:06, skipping insertion in model container [2022-01-29 06:59:06,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 06:59:06" (2/2) ... [2022-01-29 06:59:06,618 INFO L111 eAbstractionObserver]: Analyzing ICFG FischerWithBug.bpl [2022-01-29 06:59:06,621 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 06:59:06,621 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 06:59:06,621 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-29 06:59:06,621 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 06:59:06,636 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,636 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,637 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,637 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,637 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,637 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,637 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,638 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,638 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,638 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,639 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,639 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,639 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,639 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,640 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,640 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,643 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,644 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 06:59:06,644 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-29 06:59:06,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 06:59:06,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 06:59:06,704 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) [2022-01-29 06:59:06,704 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 [2022-01-29 06:59:06,743 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 06:59:06,747 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-29 06:59:06,747 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-29 06:59:06,818 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:06,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:06,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1615810858, now seen corresponding path program 1 times [2022-01-29 06:59:06,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:06,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136910753] [2022-01-29 06:59:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:06,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 06:59:06,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:06,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136910753] [2022-01-29 06:59:06,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136910753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:06,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:06,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-29 06:59:06,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978950901] [2022-01-29 06:59:06,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:06,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-29 06:59:06,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:06,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-29 06:59:06,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-29 06:59:06,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:06,950 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:06,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:06,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:06,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-29 06:59:06,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:06,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:06,971 INFO L85 PathProgramCache]: Analyzing trace with hash -716527660, now seen corresponding path program 1 times [2022-01-29 06:59:06,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:06,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537514717] [2022-01-29 06:59:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:06,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 06:59:06,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:06,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537514717] [2022-01-29 06:59:06,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537514717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:06,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:06,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-01-29 06:59:06,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224156753] [2022-01-29 06:59:06,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:06,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 06:59:06,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 06:59:06,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 06:59:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:06,999 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:06,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:06,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:06,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-29 06:59:07,143 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1509141713, now seen corresponding path program 1 times [2022-01-29 06:59:07,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:07,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650080804] [2022-01-29 06:59:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:07,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:07,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2201 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 2102 trivial. 0 not checked. [2022-01-29 06:59:07,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:07,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650080804] [2022-01-29 06:59:07,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650080804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:07,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:07,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 06:59:07,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772451198] [2022-01-29 06:59:07,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:07,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 06:59:07,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:07,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 06:59:07,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 06:59:07,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,332 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:07,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:07,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-29 06:59:07,463 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:07,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:07,466 INFO L85 PathProgramCache]: Analyzing trace with hash -637389880, now seen corresponding path program 1 times [2022-01-29 06:59:07,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:07,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318561510] [2022-01-29 06:59:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:07,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 1241 trivial. 0 not checked. [2022-01-29 06:59:07,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:07,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318561510] [2022-01-29 06:59:07,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318561510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:07,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:07,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 06:59:07,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246954492] [2022-01-29 06:59:07,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:07,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 06:59:07,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:07,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 06:59:07,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 06:59:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,626 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:07,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:07,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-29 06:59:07,750 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:07,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash -765428581, now seen corresponding path program 1 times [2022-01-29 06:59:07,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:07,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698512986] [2022-01-29 06:59:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:07,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 15673 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 15610 trivial. 0 not checked. [2022-01-29 06:59:07,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:07,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698512986] [2022-01-29 06:59:07,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698512986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:07,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:07,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-29 06:59:07,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402851376] [2022-01-29 06:59:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:07,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-29 06:59:07,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:07,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-29 06:59:07,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-29 06:59:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,955 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:07,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:08,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-29 06:59:08,051 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:08,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:08,053 INFO L85 PathProgramCache]: Analyzing trace with hash -810829820, now seen corresponding path program 2 times [2022-01-29 06:59:08,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:08,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889901591] [2022-01-29 06:59:08,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:08,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10723 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 10417 trivial. 0 not checked. [2022-01-29 06:59:08,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:08,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889901591] [2022-01-29 06:59:08,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889901591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:08,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:08,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-29 06:59:08,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391378219] [2022-01-29 06:59:08,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:08,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-29 06:59:08,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:08,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-29 06:59:08,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-29 06:59:08,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:08,165 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:08,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:08,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:08,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:08,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:08,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-29 06:59:08,552 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:08,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:08,552 INFO L85 PathProgramCache]: Analyzing trace with hash -823140870, now seen corresponding path program 1 times [2022-01-29 06:59:08,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:08,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228376199] [2022-01-29 06:59:08,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:08,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:09,341 INFO L134 CoverageAnalysis]: Checked inductivity of 131426 backedges. 15333 proven. 0 refuted. 0 times theorem prover too weak. 116093 trivial. 0 not checked. [2022-01-29 06:59:09,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:09,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228376199] [2022-01-29 06:59:09,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228376199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:09,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:09,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 06:59:09,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643268926] [2022-01-29 06:59:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:09,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 06:59:09,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 06:59:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 06:59:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:09,347 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:09,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:09,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:09,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:09,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:09,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:09,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:09,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:09,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:23,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-29 06:59:23,263 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:23,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:23,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1536448066, now seen corresponding path program 1 times [2022-01-29 06:59:23,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:23,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463511309] [2022-01-29 06:59:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:23,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 70036 backedges. 23136 proven. 0 refuted. 0 times theorem prover too weak. 46900 trivial. 0 not checked. [2022-01-29 06:59:23,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:23,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463511309] [2022-01-29 06:59:23,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463511309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 06:59:23,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 06:59:23,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 06:59:23,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440692240] [2022-01-29 06:59:23,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 06:59:23,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 06:59:23,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:23,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 06:59:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 06:59:23,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:23,525 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:23,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:23,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:23,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:23,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:23,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:23,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-29 06:59:23,876 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-01-29 06:59:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 06:59:23,877 INFO L85 PathProgramCache]: Analyzing trace with hash -335129799, now seen corresponding path program 3 times [2022-01-29 06:59:23,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 06:59:23,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129183313] [2022-01-29 06:59:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 06:59:23,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 06:59:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 06:59:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 56465 backedges. 6964 proven. 2081 refuted. 0 times theorem prover too weak. 47420 trivial. 0 not checked. [2022-01-29 06:59:24,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 06:59:24,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129183313] [2022-01-29 06:59:24,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129183313] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 06:59:24,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927538075] [2022-01-29 06:59:24,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-29 06:59:24,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 06:59:24,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 06:59:24,449 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) [2022-01-29 06:59:24,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-29 06:59:24,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-01-29 06:59:24,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 06:59:24,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-29 06:59:24,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 06:59:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 56465 backedges. 191 proven. 8879 refuted. 0 times theorem prover too weak. 47395 trivial. 0 not checked. [2022-01-29 06:59:27,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 06:59:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 56465 backedges. 6801 proven. 2269 refuted. 0 times theorem prover too weak. 47395 trivial. 0 not checked. [2022-01-29 06:59:32,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927538075] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 06:59:32,065 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 06:59:32,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-29 06:59:32,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194835433] [2022-01-29 06:59:32,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 06:59:32,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-29 06:59:32,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 06:59:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-29 06:59:32,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-29 06:59:32,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:32,068 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 06:59:32,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.68421052631579) internal successors, (222), 19 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 06:59:32,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:32,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:32,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:32,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:32,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:32,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-01-29 06:59:32,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:32,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 06:59:32,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 06:59:32,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-29 06:59:32,584 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,SelfDestructingSolverStorable8 [2022-01-29 06:59:32,585 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException at java.base/java.util.Collections$UnmodifiableCollection.removeAll(Collections.java:1073) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.LeftRightSplit.removeDuplicate(LeftRightSplit.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.LeftRightSplit.addStatement(LeftRightSplit.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.McrState.getNextState(McrState.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.McrState.getNextState(McrState.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.McrStateFactory.createNextState(McrStateFactory.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.MaximalCausalityReduction.internalSuccessors(MaximalCausalityReduction.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.MaximalCausalityReduction.internalSuccessors(MaximalCausalityReduction.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.next(NestedIterator.java:94) at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEachOrdered(ReferencePipeline.java:502) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:198) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:127) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:440) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-29 06:59:32,589 INFO L158 Benchmark]: Toolchain (without parser) took 26197.90ms. Allocated memory was 183.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 141.4MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 751.8MB. Max. memory is 8.0GB. [2022-01-29 06:59:32,589 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 183.5MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 06:59:32,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.59ms. Allocated memory is still 183.5MB. Free memory was 141.3MB in the beginning and 139.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-29 06:59:32,589 INFO L158 Benchmark]: Boogie Preprocessor took 16.17ms. Allocated memory is still 183.5MB. Free memory was 139.8MB in the beginning and 138.8MB in the end (delta: 983.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 06:59:32,590 INFO L158 Benchmark]: RCFGBuilder took 183.90ms. Allocated memory is still 183.5MB. Free memory was 138.7MB in the beginning and 129.7MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-29 06:59:32,590 INFO L158 Benchmark]: TraceAbstraction took 25973.43ms. Allocated memory was 183.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 129.2MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 739.2MB. Max. memory is 8.0GB. [2022-01-29 06:59:32,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15ms. Allocated memory is still 183.5MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.59ms. Allocated memory is still 183.5MB. Free memory was 141.3MB in the beginning and 139.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.17ms. Allocated memory is still 183.5MB. Free memory was 139.8MB in the beginning and 138.8MB in the end (delta: 983.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 183.90ms. Allocated memory is still 183.5MB. Free memory was 138.7MB in the beginning and 129.7MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 25973.43ms. Allocated memory was 183.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 129.2MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 739.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: null: java.base/java.util.Collections$UnmodifiableCollection.removeAll(Collections.java:1073) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-29 06:59:32,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-01-29 06:59:32,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...