/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 01:21:11,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 01:21:11,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 01:21:11,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 01:21:11,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 01:21:11,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 01:21:11,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 01:21:11,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 01:21:11,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 01:21:11,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 01:21:11,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 01:21:11,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 01:21:11,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 01:21:11,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 01:21:11,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 01:21:11,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 01:21:11,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-25 01:21:11,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 01:21:11,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 01:21:11,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 01:21:11,630 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf [2021-10-25 01:21:11,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 01:21:11,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 01:21:11,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 01:21:11,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 01:21:11,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 01:21:11,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 01:21:11,645 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 01:21:11,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 01:21:11,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 01:21:11,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 01:21:11,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 01:21:11,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 01:21:11,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 01:21:11,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 01:21:11,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 01:21:11,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 01:21:11,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 01:21:11,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 01:21:11,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 01:21:11,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 01:21:11,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 01:21:11,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 01:21:11,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 01:21:11,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 01:21:11,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 01:21:11,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 01:21:11,648 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 01:21:11,648 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 01:21:11,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 01:21:11,648 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 01:21:11,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 01:21:11,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 01:21:11,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 01:21:11,862 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 01:21:11,873 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 01:21:11,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl [2021-10-25 01:21:11,873 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl' [2021-10-25 01:21:11,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 01:21:11,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 01:21:11,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 01:21:11,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 01:21:11,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 01:21:11,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 01:21:11,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 01:21:11,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 01:21:11,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 01:21:11,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 01:21:11,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 01:21:11,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 01:21:11,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 01:21:11,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/1) ... [2021-10-25 01:21:11,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 01:21:11,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:11,971 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) [2021-10-25 01:21:11,976 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 [2021-10-25 01:21:11,999 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 01:21:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 01:21:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 01:21:12,000 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 01:21:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 01:21:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 01:21:12,001 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 01:21:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 01:21:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 01:21:12,001 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-25 01:21:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-25 01:21:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-25 01:21:12,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-10-25 01:21:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-25 01:21:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-25 01:21:12,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-10-25 01:21:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-10-25 01:21:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-10-25 01:21:12,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 01:21:12,208 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 01:21:12,208 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-25 01:21:12,211 INFO L202 PluginConnector]: Adding new model min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:21:12 BoogieIcfgContainer [2021-10-25 01:21:12,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 01:21:12,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 01:21:12,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 01:21:12,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 01:21:12,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:21:11" (1/2) ... [2021-10-25 01:21:12,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d70b1a and model type min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:21:12, skipping insertion in model container [2021-10-25 01:21:12,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:21:12" (2/2) ... [2021-10-25 01:21:12,224 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc-dec.wvr.bpl [2021-10-25 01:21:12,227 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 01:21:12,227 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 01:21:12,227 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 01:21:12,227 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 01:21:12,269 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-10-25 01:21:12,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 01:21:12,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:12,323 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) [2021-10-25 01:21:12,324 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 [2021-10-25 01:21:12,347 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 01:21:12,353 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, mConcurrency=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 [2021-10-25 01:21:12,353 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-25 01:21:12,620 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-25 01:21:12,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:21:12,623 INFO L82 PathProgramCache]: Analyzing trace with hash 167763739, now seen corresponding path program 1 times [2021-10-25 01:21:12,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:21:12,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729546000] [2021-10-25 01:21:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:21:12,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:21:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:21:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 16 proven. 64 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-25 01:21:12,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:21:12,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729546000] [2021-10-25 01:21:12,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729546000] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:12,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008759882] [2021-10-25 01:21:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:21:12,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:12,988 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) [2021-10-25 01:21:12,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 01:21:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:21:13,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-25 01:21:13,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:21:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 54 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-25 01:21:13,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008759882] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:13,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:21:13,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5] total 18 [2021-10-25 01:21:13,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986238691] [2021-10-25 01:21:13,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-25 01:21:13,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:21:13,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-25 01:21:13,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-10-25 01:21:13,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:13,423 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:21:13,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.842105263157895) internal successors, (92), 18 states have internal predecessors, (92), 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) [2021-10-25 01:21:13,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:13,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-25 01:21:14,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-25 01:21:14,036 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-25 01:21:14,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:21:14,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1819395671, now seen corresponding path program 2 times [2021-10-25 01:21:14,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:21:14,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858852619] [2021-10-25 01:21:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:21:14,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:21:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:21:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 202 proven. 94 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-25 01:21:14,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:21:14,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858852619] [2021-10-25 01:21:14,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858852619] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:14,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062146161] [2021-10-25 01:21:14,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 01:21:14,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:14,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:14,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 01:21:14,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 01:21:14,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 01:21:14,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:21:14,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-25 01:21:14,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:21:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 234 proven. 11 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-25 01:21:14,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062146161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:14,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:21:14,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 17 [2021-10-25 01:21:14,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914936794] [2021-10-25 01:21:14,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-25 01:21:14,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:21:14,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-25 01:21:14,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2021-10-25 01:21:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:14,690 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:21:14,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 17 states have internal predecessors, (114), 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) [2021-10-25 01:21:14,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:14,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:15,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:15,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-25 01:21:15,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 01:21:15,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:15,606 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-25 01:21:15,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:21:15,606 INFO L82 PathProgramCache]: Analyzing trace with hash 356813429, now seen corresponding path program 3 times [2021-10-25 01:21:15,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:21:15,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725705470] [2021-10-25 01:21:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:21:15,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:21:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:21:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 90 proven. 142 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-25 01:21:15,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:21:15,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725705470] [2021-10-25 01:21:15,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725705470] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:15,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197093386] [2021-10-25 01:21:15,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 01:21:15,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:15,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:15,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 01:21:15,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 01:21:16,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-10-25 01:21:16,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:21:16,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-25 01:21:16,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:21:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 40 proven. 110 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-10-25 01:21:16,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197093386] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:16,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:21:16,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 5] total 26 [2021-10-25 01:21:16,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071141529] [2021-10-25 01:21:16,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-25 01:21:16,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:21:16,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-25 01:21:16,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2021-10-25 01:21:16,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:16,314 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:21:16,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.074074074074074) internal successors, (110), 26 states have internal predecessors, (110), 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) [2021-10-25 01:21:16,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:16,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-25 01:21:16,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 01:21:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 01:21:18,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-25 01:21:18,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:18,392 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-25 01:21:18,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:21:18,392 INFO L82 PathProgramCache]: Analyzing trace with hash -932738701, now seen corresponding path program 4 times [2021-10-25 01:21:18,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:21:18,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235591208] [2021-10-25 01:21:18,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:21:18,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:21:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:21:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 97 proven. 373 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-25 01:21:18,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:21:18,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235591208] [2021-10-25 01:21:18,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235591208] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:18,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974688595] [2021-10-25 01:21:18,729 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 01:21:18,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:18,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:18,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 01:21:18,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 01:21:18,884 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 01:21:18,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:21:18,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-25 01:21:18,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:21:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 233 proven. 35 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-10-25 01:21:19,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974688595] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:19,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:21:19,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 5] total 32 [2021-10-25 01:21:19,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833288770] [2021-10-25 01:21:19,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-25 01:21:19,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:21:19,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-25 01:21:19,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2021-10-25 01:21:19,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:19,243 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:21:19,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.0) internal successors, (132), 32 states have internal predecessors, (132), 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) [2021-10-25 01:21:19,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:19,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 01:21:19,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-25 01:21:19,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 01:21:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 01:21:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-25 01:21:20,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-25 01:21:20,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:20,479 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-25 01:21:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:21:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash -854904783, now seen corresponding path program 5 times [2021-10-25 01:21:20,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:21:20,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514979034] [2021-10-25 01:21:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:21:20,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:21:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:21:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 220 proven. 468 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-25 01:21:20,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:21:20,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514979034] [2021-10-25 01:21:20,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514979034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:20,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879466405] [2021-10-25 01:21:20,975 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 01:21:20,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:20,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:20,976 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 01:21:20,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-25 01:21:21,450 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-10-25 01:21:21,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:21:21,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-25 01:21:21,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:21:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 59 proven. 279 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-10-25 01:21:22,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879466405] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:22,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:21:22,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 9] total 39 [2021-10-25 01:21:22,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144184857] [2021-10-25 01:21:22,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-25 01:21:22,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:21:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-25 01:21:22,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=1249, Unknown=0, NotChecked=0, Total=1560 [2021-10-25 01:21:22,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:22,042 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:21:22,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.85) internal successors, (154), 39 states have internal predecessors, (154), 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) [2021-10-25 01:21:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 01:21:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-25 01:21:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-10-25 01:21:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 01:21:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-10-25 01:21:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 01:21:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-10-25 01:21:23,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-25 01:21:24,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:24,180 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-25 01:21:24,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:21:24,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2057741745, now seen corresponding path program 6 times [2021-10-25 01:21:24,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:21:24,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549767609] [2021-10-25 01:21:24,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:21:24,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:21:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:21:24,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 239 proven. 731 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-10-25 01:21:24,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:21:24,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549767609] [2021-10-25 01:21:24,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549767609] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:24,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597346011] [2021-10-25 01:21:24,412 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-25 01:21:24,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:21:24,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:21:24,415 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 01:21:24,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-25 01:21:24,780 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-10-25 01:21:24,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:21:24,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-25 01:21:24,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:21:25,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2021-10-25 01:21:25,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-25 01:21:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 1048 trivial. 0 not checked. [2021-10-25 01:21:25,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597346011] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:21:25,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:21:25,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2021-10-25 01:21:25,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246690210] [2021-10-25 01:21:25,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-25 01:21:25,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:21:25,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-25 01:21:25,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-10-25 01:21:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:21:25,531 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:21:25,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.05) internal successors, (121), 19 states have internal predecessors, (121), 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) [2021-10-25 01:21:25,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 01:21:25,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 01:21:25,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-10-25 01:21:25,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 01:21:25,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-10-25 01:21:25,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.