/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-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-08 01:32:38,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-08 01:32:38,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-08 01:32:38,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-08 01:32:38,099 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-NoLbe-Random42.epf [2021-08-08 01:32:38,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-08 01:32:38,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-08 01:32:38,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-08 01:32:38,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-08 01:32:38,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-08 01:32:38,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-08 01:32:38,130 INFO L138 SettingsManager]: * Use SBE=true [2021-08-08 01:32:38,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-08 01:32:38,131 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-08 01:32:38,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-08 01:32:38,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-08 01:32:38,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-08 01:32:38,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-08 01:32:38,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-08 01:32:38,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-08 01:32:38,132 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-08 01:32:38,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-08 01:32:38,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-08 01:32:38,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-08 01:32:38,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-08 01:32:38,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-08 01:32:38,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-08 01:32:38,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-08 01:32:38,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-08 01:32:38,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-08 01:32:38,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-08 01:32:38,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-08 01:32:38,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-08 01:32:38,133 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-08 01:32:38,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-08 01:32:38,134 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-08 01:32:38,134 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-08 01:32:38,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-08 01:32:38,134 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-08 01:32:38,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-08 01:32:38,134 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-08 01:32:38,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-08 01:32:38,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-08 01:32:38,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-08 01:32:38,410 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-08 01:32:38,411 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-08 01:32:38,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-08-08 01:32:38,411 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-08-08 01:32:38,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-08 01:32:38,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-08 01:32:38,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-08 01:32:38,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-08 01:32:38,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-08 01:32:38,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-08 01:32:38,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-08 01:32:38,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-08 01:32:38,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-08 01:32:38,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-08 01:32:38,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-08 01:32:38,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-08 01:32:38,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-08 01:32:38,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/1) ... [2021-08-08 01:32:38,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-08 01:32:38,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 01:32:38,502 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) [2021-08-08 01:32:38,511 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 [2021-08-08 01:32:38,539 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-08 01:32:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-08 01:32:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-08 01:32:38,539 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-08 01:32:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-08 01:32:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-08 01:32:38,544 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-08 01:32:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-08 01:32:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-08 01:32:38,545 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-08 01:32:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-08 01:32:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-08 01:32:38,545 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-08 01:32:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-08 01:32:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-08 01:32:38,546 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-08 01:32:38,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-08 01:32:38,680 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-08 01:32:38,681 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:32:38 BoogieIcfgContainer [2021-08-08 01:32:38,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-08 01:32:38,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-08 01:32:38,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-08 01:32:38,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-08 01:32:38,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 01:32:38" (1/2) ... [2021-08-08 01:32:38,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729f61c and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 01:32:38, skipping insertion in model container [2021-08-08 01:32:38,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:32:38" (2/2) ... [2021-08-08 01:32:38,686 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-08-08 01:32:38,689 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-08 01:32:38,690 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-08 01:32:38,690 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-08 01:32:38,690 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-08 01:32:38,723 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-08 01:32:38,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-08 01:32:38,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 01:32:38,768 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) [2021-08-08 01:32:38,777 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 [2021-08-08 01:32:38,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-08 01:32:38,806 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 [2021-08-08 01:32:38,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-08 01:32:38,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-08 01:32:38,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 01:32:38,890 INFO L82 PathProgramCache]: Analyzing trace with hash 871013626, now seen corresponding path program 1 times [2021-08-08 01:32:38,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 01:32:38,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272900937] [2021-08-08 01:32:38,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:38,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 01:32:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:39,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 01:32:39,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 01:32:39,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272900937] [2021-08-08 01:32:39,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272900937] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 01:32:39,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310832904] [2021-08-08 01:32:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:39,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 01:32:39,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 01:32:39,112 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) [2021-08-08 01:32:39,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-08 01:32:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:39,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-08 01:32:39,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 01:32:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 01:32:39,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310832904] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 01:32:39,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 01:32:39,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-08-08 01:32:39,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559246175] [2021-08-08 01:32:39,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-08 01:32:39,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 01:32:39,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-08 01:32:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-08 01:32:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 01:32:39,342 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 01:32:39,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 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) [2021-08-08 01:32:39,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 01:32:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 01:32:39,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-08 01:32:39,659 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 [2021-08-08 01:32:39,660 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-08 01:32:39,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 01:32:39,661 INFO L82 PathProgramCache]: Analyzing trace with hash 878085826, now seen corresponding path program 1 times [2021-08-08 01:32:39,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 01:32:39,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031702618] [2021-08-08 01:32:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:39,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 01:32:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 01:32:39,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 01:32:39,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031702618] [2021-08-08 01:32:39,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031702618] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 01:32:39,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393406362] [2021-08-08 01:32:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:39,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 01:32:39,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 01:32:39,922 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) [2021-08-08 01:32:39,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-08 01:32:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:39,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-08 01:32:39,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 01:32:40,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 01:32:40,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393406362] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 01:32:40,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 01:32:40,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 10 [2021-08-08 01:32:40,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252377901] [2021-08-08 01:32:40,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-08 01:32:40,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 01:32:40,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-08 01:32:40,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-08 01:32:40,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 01:32:40,830 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 01:32:40,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-08 01:32:40,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 01:32:40,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 01:32:40,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 01:32:40,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 01:32:40,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-08 01:32:41,152 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 [2021-08-08 01:32:41,153 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-08 01:32:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 01:32:41,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2143525338, now seen corresponding path program 1 times [2021-08-08 01:32:41,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 01:32:41,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020239021] [2021-08-08 01:32:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:41,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 01:32:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 01:32:41,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 01:32:41,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020239021] [2021-08-08 01:32:41,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020239021] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 01:32:41,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732009454] [2021-08-08 01:32:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:41,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 01:32:41,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 01:32:41,206 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) [2021-08-08 01:32:41,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-08 01:32:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:41,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-08 01:32:41,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 01:32:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 01:32:41,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732009454] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 01:32:41,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 01:32:41,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-08-08 01:32:41,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907858843] [2021-08-08 01:32:41,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-08 01:32:41,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 01:32:41,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-08 01:32:41,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-08 01:32:41,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 01:32:41,474 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 01:32:41,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-08 01:32:41,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 01:32:41,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 01:32:41,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 01:32:41,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 01:32:41,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 01:32:41,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 01:32:41,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-08 01:32:41,777 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 [2021-08-08 01:32:41,777 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-08 01:32:41,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 01:32:41,778 INFO L82 PathProgramCache]: Analyzing trace with hash 261323255, now seen corresponding path program 1 times [2021-08-08 01:32:41,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 01:32:41,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382111493] [2021-08-08 01:32:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:41,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 01:32:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 01:32:42,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 01:32:42,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382111493] [2021-08-08 01:32:42,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382111493] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 01:32:42,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040585336] [2021-08-08 01:32:42,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 01:32:42,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 01:32:42,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 01:32:42,065 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) [2021-08-08 01:32:42,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-08 01:32:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 01:32:42,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 37 conjunts are in the unsatisfiable core [2021-08-08 01:32:42,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-08-08 01:47:23,733 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-08 01:47:23,745 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-08 01:47:23,765 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-08 01:47:23,780 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-08 01:47:23,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-08 01:47:23,980 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 [2021-08-08 01:47:23,981 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1054-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1054 xjuncts wrt. a ATOM-1 context. [2021-08-08 01:47:23,984 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-08 01:47:23,984 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-08 01:47:23,985 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-08 01:47:23,986 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-08 01:47:23,991 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-08 01:47:23,992 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-08 01:47:23,993 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 01:47:23 BasicIcfg [2021-08-08 01:47:23,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-08 01:47:23,994 INFO L168 Benchmark]: Toolchain (without parser) took 885552.46 ms. Allocated memory was 186.6 MB in the beginning and 708.8 MB in the end (delta: 522.2 MB). Free memory was 166.1 MB in the beginning and 285.7 MB in the end (delta: -119.6 MB). Peak memory consumption was 467.0 MB. Max. memory is 8.0 GB. [2021-08-08 01:47:23,994 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 186.6 MB. Free memory is still 167.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-08 01:47:23,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.84 ms. Allocated memory is still 186.6 MB. Free memory was 166.0 MB in the beginning and 164.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-08 01:47:23,994 INFO L168 Benchmark]: Boogie Preprocessor took 17.73 ms. Allocated memory is still 186.6 MB. Free memory was 164.4 MB in the beginning and 163.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-08 01:47:23,994 INFO L168 Benchmark]: RCFGBuilder took 198.58 ms. Allocated memory is still 186.6 MB. Free memory was 163.4 MB in the beginning and 150.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-08 01:47:23,994 INFO L168 Benchmark]: TraceAbstraction took 885311.02 ms. Allocated memory was 186.6 MB in the beginning and 708.8 MB in the end (delta: 522.2 MB). Free memory was 150.2 MB in the beginning and 285.7 MB in the end (delta: -135.5 MB). Peak memory consumption was 450.2 MB. Max. memory is 8.0 GB. [2021-08-08 01:47:23,994 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 0.10 ms. Allocated memory is still 186.6 MB. Free memory is still 167.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.84 ms. Allocated memory is still 186.6 MB. Free memory was 166.0 MB in the beginning and 164.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.73 ms. Allocated memory is still 186.6 MB. Free memory was 164.4 MB in the beginning and 163.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 198.58 ms. Allocated memory is still 186.6 MB. Free memory was 163.4 MB in the beginning and 150.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 885311.02 ms. Allocated memory was 186.6 MB in the beginning and 708.8 MB in the end (delta: 522.2 MB). Free memory was 150.2 MB in the beginning and 285.7 MB in the end (delta: -135.5 MB). Peak memory consumption was 450.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2010, positive: 1845, positive conditional: 775, positive unconditional: 1070, negative: 165, negative conditional: 165, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 775, positive unconditional: 1070, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 775, positive unconditional: 1070, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 602, positive unconditional: 1243, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 404, positive unconditional: 1441, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 404, positive unconditional: 1441, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 959, positive: 959, positive conditional: 0, positive unconditional: 959, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 959, positive: 959, positive conditional: 0, positive unconditional: 959, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1845, positive: 886, positive conditional: 404, positive unconditional: 482, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 959, unknown conditional: 0, unknown unconditional: 959] , Statistics on independence cache: Total cache size (in pairs): 959, Positive cache size: 959, Positive conditional cache size: 0, Positive unconditional cache size: 959, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 198, Maximal queried relation: 0, Independence queries for same thread: 165 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 52, Number of persistent set computation: 42, Number of trivial persistent sets: 14, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1070, positive: 1070, positive conditional: 0, positive unconditional: 1070, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2010, positive: 1845, positive conditional: 775, positive unconditional: 1070, negative: 165, negative conditional: 165, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 775, positive unconditional: 1070, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 775, positive unconditional: 1070, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 602, positive unconditional: 1243, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 404, positive unconditional: 1441, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1845, positive: 1845, positive conditional: 404, positive unconditional: 1441, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 959, positive: 959, positive conditional: 0, positive unconditional: 959, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 959, positive: 959, positive conditional: 0, positive unconditional: 959, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1845, positive: 886, positive conditional: 404, positive unconditional: 482, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 959, unknown conditional: 0, unknown unconditional: 959] , Statistics on independence cache: Total cache size (in pairs): 959, Positive cache size: 959, Positive conditional cache size: 0, Positive unconditional cache size: 959, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 198, Maximal queried relation: 0, Independence queries for same thread: 165 - 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 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1054-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1054 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1054-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1054 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1054-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1054 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1054-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1054 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1054-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1054 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 74 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 885241.3ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 362.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 17, 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: 29.8ms SsaConstructionTime, 84.3ms SatisfiabilityAnalysisTime, 1597.8ms InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 1536 SizeOfPredicates, 6 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 0 PerfectInterpolantSequences, 2/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown