/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-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 08:58:50,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 08:58:50,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 08:58:50,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 08:58:50,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 08:58:50,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 08:58:50,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 08:58:50,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 08:58:50,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 08:58:50,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 08:58:50,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 08:58:50,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 08:58:50,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 08:58:50,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 08:58:50,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 08:58:50,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 08:58:50,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-25 08:58:50,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 08:58:50,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 08:58:50,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 08:58:50,674 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-Random7777.epf [2021-10-25 08:58:50,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 08:58:50,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 08:58:50,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 08:58:50,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 08:58:50,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 08:58:50,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 08:58:50,706 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 08:58:50,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 08:58:50,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 08:58:50,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 08:58:50,707 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 08:58:50,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 08:58:50,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 08:58:50,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 08:58:50,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 08:58:50,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 08:58:50,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 08:58:50,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 08:58:50,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 08:58:50,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 08:58:50,709 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 08:58:50,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 08:58:50,710 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-25 08:58:50,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 08:58:50,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 08:58:50,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 08:58:50,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 08:58:50,973 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 08:58:50,976 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 08:58:50,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl [2021-10-25 08:58:50,976 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl' [2021-10-25 08:58:51,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 08:58:51,002 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 08:58:51,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 08:58:51,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 08:58:51,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 08:58:51,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 08:58:51,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 08:58:51,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 08:58:51,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 08:58:51,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 08:58:51,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 08:58:51,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 08:58:51,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 08:58:51,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/1) ... [2021-10-25 08:58:51,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 08:58:51,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 08:58:51,078 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 08:58:51,080 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 08:58:51,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 08:58:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 08:58:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 08:58:51,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 08:58:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 08:58:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 08:58:51,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 08:58:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 08:58:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 08:58:51,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-25 08:58:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-25 08:58:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-25 08:58:51,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-10-25 08:58:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-25 08:58:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-25 08:58:51,112 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 08:58:51,280 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 08:58:51,280 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-25 08:58:51,282 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:58:51 BoogieIcfgContainer [2021-10-25 08:58:51,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 08:58:51,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 08:58:51,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 08:58:51,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 08:58:51,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 08:58:50" (1/2) ... [2021-10-25 08:58:51,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9caf258 and model type spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:58:51, skipping insertion in model container [2021-10-25 08:58:51,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:58:51" (2/2) ... [2021-10-25 08:58:51,293 INFO L111 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.bpl [2021-10-25 08:58:51,306 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 08:58:51,306 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 08:58:51,307 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 08:58:51,307 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 08:58:51,392 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-25 08:58:51,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 08:58:51,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 08:58:51,438 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 08:58:51,471 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 08:58:51,486 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 08:58:51,493 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 08:58:51,493 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-25 08:58:51,767 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-25 08:58:51,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 08:58:51,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1417910510, now seen corresponding path program 1 times [2021-10-25 08:58:51,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 08:58:51,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184646857] [2021-10-25 08:58:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 08:58:51,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 08:58:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 08:58:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-25 08:58:51,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 08:58:51,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184646857] [2021-10-25 08:58:51,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184646857] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 08:58:51,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 08:58:51,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-25 08:58:51,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703302836] [2021-10-25 08:58:51,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-25 08:58:51,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 08:58:51,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-25 08:58:51,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-25 08:58:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 08:58:51,970 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 08:58:51,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 08:58:51,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 08:58:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 08:58:52,200 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-25 08:58:52,200 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 08:58:52,201 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 08:58:52,201 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 08:58:52,201 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-25 08:58:52,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 08:58:52,209 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 08:58:52,209 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 08:58:52,211 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:58:52 BasicIcfg [2021-10-25 08:58:52,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 08:58:52,216 INFO L168 Benchmark]: Toolchain (without parser) took 1209.75 ms. Allocated memory was 204.5 MB in the beginning and 275.8 MB in the end (delta: 71.3 MB). Free memory was 162.6 MB in the beginning and 225.8 MB in the end (delta: -63.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 8.0 GB. [2021-10-25 08:58:52,217 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 204.5 MB. Free memory is still 163.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 08:58:52,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.58 ms. Allocated memory is still 204.5 MB. Free memory was 162.5 MB in the beginning and 161.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 08:58:52,219 INFO L168 Benchmark]: Boogie Preprocessor took 14.15 ms. Allocated memory is still 204.5 MB. Free memory was 161.1 MB in the beginning and 160.2 MB in the end (delta: 920.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-25 08:58:52,220 INFO L168 Benchmark]: RCFGBuilder took 228.98 ms. Allocated memory is still 204.5 MB. Free memory was 160.0 MB in the beginning and 149.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-25 08:58:52,220 INFO L168 Benchmark]: TraceAbstraction took 924.13 ms. Allocated memory was 204.5 MB in the beginning and 275.8 MB in the end (delta: 71.3 MB). Free memory was 149.0 MB in the beginning and 225.8 MB in the end (delta: -76.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 08:58:52,226 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 0.13 ms. Allocated memory is still 204.5 MB. Free memory is still 163.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 33.58 ms. Allocated memory is still 204.5 MB. Free memory was 162.5 MB in the beginning and 161.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.15 ms. Allocated memory is still 204.5 MB. Free memory was 161.1 MB in the beginning and 160.2 MB in the end (delta: 920.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 228.98 ms. Allocated memory is still 204.5 MB. Free memory was 160.0 MB in the beginning and 149.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 924.13 ms. Allocated memory was 204.5 MB in the beginning and 275.8 MB in the end (delta: 71.3 MB). Free memory was 149.0 MB in the beginning and 225.8 MB in the end (delta: -76.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3830, positive: 3195, positive conditional: 2450, positive unconditional: 745, negative: 635, negative conditional: 621, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3404, positive: 3195, positive conditional: 0, positive unconditional: 3195, negative: 209, negative conditional: 0, negative unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 654, positive: 636, positive conditional: 0, positive unconditional: 636, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 654, positive: 612, positive conditional: 0, positive unconditional: 612, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3404, positive: 2559, positive conditional: 0, positive unconditional: 2559, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 654, unknown conditional: 0, unknown unconditional: 654] , Statistics on independence cache: Total cache size (in pairs): 654, Positive cache size: 636, Positive conditional cache size: 0, Positive unconditional cache size: 636, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Independence queries for same thread: 426 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 251, Number of persistent set computation: 226, Number of trivial persistent sets: 106, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3830, positive: 3195, positive conditional: 2450, positive unconditional: 745, negative: 635, negative conditional: 621, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3404, positive: 3195, positive conditional: 0, positive unconditional: 3195, negative: 209, negative conditional: 0, negative unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 654, positive: 636, positive conditional: 0, positive unconditional: 636, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 654, positive: 612, positive conditional: 0, positive unconditional: 612, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3404, positive: 2559, positive conditional: 0, positive unconditional: 2559, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 654, unknown conditional: 0, unknown unconditional: 654] , Statistics on independence cache: Total cache size (in pairs): 654, Positive cache size: 636, Positive conditional cache size: 0, Positive unconditional cache size: 636, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Independence queries for same thread: 426 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 66]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 775.5ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.4ms, PartialOrderReductionTime: 483.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.4ms SsaConstructionTime, 17.7ms SatisfiabilityAnalysisTime, 79.5ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-25 08:58:52,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 08:58:52,475 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...