/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:59:33,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:59:33,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:59:33,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 03:59:33,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 03:59:33,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 03:59:33,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 03:59:33,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 03:59:33,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 03:59:33,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 03:59:33,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 03:59:33,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 03:59:33,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:59:33,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:59:33,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:59:33,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:59:33,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:59:33,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:59:33,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:59:33,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:59:33,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:59:33,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:59:33,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:59:33,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:59:33,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 03:59:33,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:59:33,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:59:33,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:59:33,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-20 03:59:33,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:59:33,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:59:33,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:59:33,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:59:33,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:59:33,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:59:33,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:59:33,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:59:33,899 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:59:33,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:59:33,900 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:59:33,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:59:33,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:59:33,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:59:33,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:59:33,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:59:33,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:59:33,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:59:33,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:59:33,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:59:33,903 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:59:33,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:59:33,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:59:33,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:59:33,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:59:33,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:59:33,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:59:33,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:59:33,904 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:59:33,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:59:34,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:59:34,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:59:34,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:59:34,125 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 03:59:34,127 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 03:59:34,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons3.wvr.bpl [2022-02-20 03:59:34,128 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons3.wvr.bpl' [2022-02-20 03:59:34,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:59:34,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 03:59:34,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:59:34,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:59:34,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:59:34,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,179 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 03:59:34,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:59:34,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:59:34,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:59:34,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:59:34,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:59:34,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:59:34,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:59:34,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:59:34,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/1) ... [2022-02-20 03:59:34,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:59:34,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:34,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 03:59:34,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 03:59:34,248 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 03:59:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 03:59:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 03:59:34,249 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 03:59:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 03:59:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 03:59:34,249 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 03:59:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:59:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:59:34,249 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 03:59:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 03:59:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 03:59:34,249 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-20 03:59:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-20 03:59:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-20 03:59:34,250 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:59:34,283 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:59:34,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:59:34,413 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:59:34,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:59:34,426 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:59:34,428 INFO L202 PluginConnector]: Adding new model prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:59:34 BoogieIcfgContainer [2022-02-20 03:59:34,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:59:34,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:59:34,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:59:34,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:59:34,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:34" (1/2) ... [2022-02-20 03:59:34,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f1f0db and model type prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:59:34, skipping insertion in model container [2022-02-20 03:59:34,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:59:34" (2/2) ... [2022-02-20 03:59:34,451 INFO L111 eAbstractionObserver]: Analyzing ICFG prod-cons3.wvr.bpl [2022-02-20 03:59:34,470 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:59:34,471 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:59:34,471 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:59:34,471 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:59:34,499 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 03:59:34,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:59:34,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:34,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 03:59:34,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 03:59:34,612 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:59:34,620 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 [2022-02-20 03:59:34,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-20 03:59:41,307 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 984186 transitions and produced 287355 states. [2022-02-20 03:59:41,309 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 03:59:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:59:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash 389974427, now seen corresponding path program 1 times [2022-02-20 03:59:41,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:59:41,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553458652] [2022-02-20 03:59:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:59:41,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:59:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:59:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 6590 backedges. 2621 proven. 0 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-02-20 03:59:41,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:59:41,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553458652] [2022-02-20 03:59:41,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553458652] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:59:41,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:59:41,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 03:59:41,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108773353] [2022-02-20 03:59:41,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:59:41,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 03:59:41,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:59:42,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 03:59:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 03:59:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:42,023 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:59:42,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:59:42,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:00:07,648 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3050961 transitions and produced 889296 states. [2022-02-20 04:00:07,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:00:07,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 04:00:07,649 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:00:07,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:00:07,652 INFO L85 PathProgramCache]: Analyzing trace with hash 541384507, now seen corresponding path program 2 times [2022-02-20 04:00:07,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:00:07,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491116331] [2022-02-20 04:00:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:00:07,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:00:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:00:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4028 backedges. 508 proven. 3512 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-20 04:00:11,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:00:11,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491116331] [2022-02-20 04:00:11,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491116331] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:00:11,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434172391] [2022-02-20 04:00:11,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:00:11,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:00:11,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:00:11,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:00:11,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 04:00:11,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:00:11,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:00:11,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 141 conjunts are in the unsatisfiable core [2022-02-20 04:00:11,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:00:15,958 INFO L353 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2022-02-20 04:00:15,968 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 53 [2022-02-20 04:00:23,178 INFO L353 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2022-02-20 04:00:23,178 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 26 [2022-02-20 04:00:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4028 backedges. 511 proven. 3509 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-20 04:00:23,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:00:31,282 INFO L353 Elim1Store]: treesize reduction 264, result has 47.7 percent of original size [2022-02-20 04:00:31,282 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 88 treesize of output 292 [2022-02-20 04:00:43,352 INFO L353 Elim1Store]: treesize reduction 264, result has 47.7 percent of original size [2022-02-20 04:00:43,353 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 73 treesize of output 277 [2022-02-20 04:00:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4028 backedges. 654 proven. 3366 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-20 04:00:50,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434172391] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:00:50,397 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:00:50,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 79, 79] total 235 [2022-02-20 04:00:50,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037870601] [2022-02-20 04:00:50,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:00:50,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 235 states [2022-02-20 04:00:50,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:00:50,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 235 interpolants. [2022-02-20 04:00:50,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3520, Invalid=51470, Unknown=0, NotChecked=0, Total=54990 [2022-02-20 04:00:50,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:00:50,424 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:00:50,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 235 states, 235 states have (on average 3.0851063829787235) internal successors, (725), 235 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:00:50,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:00:50,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.