/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/TwoActiveWorkersSirius.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 13:51:36,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 13:51:36,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 13:51:36,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 13:51:36,766 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.epf [2022-02-09 13:51:36,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 13:51:36,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 13:51:36,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 13:51:36,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 13:51:36,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 13:51:36,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 13:51:36,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 13:51:36,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 13:51:36,791 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 13:51:36,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 13:51:36,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 13:51:36,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 13:51:36,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 13:51:36,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 13:51:36,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 13:51:36,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 13:51:36,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 13:51:36,793 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 13:51:36,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 13:51:36,793 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 13:51:36,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 13:51:36,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 13:51:36,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 13:51:36,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 13:51:36,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 13:51:36,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:51:36,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 13:51:36,794 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 13:51:36,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 13:51:36,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 13:51:36,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 13:51:36,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 13:51:36,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 13:51:36,999 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 13:51:36,999 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 13:51:37,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/TwoActiveWorkersSirius.bpl [2022-02-09 13:51:37,001 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/TwoActiveWorkersSirius.bpl' [2022-02-09 13:51:37,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 13:51:37,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 13:51:37,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 13:51:37,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 13:51:37,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 13:51:37,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,038 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 13:51:37,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 13:51:37,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 13:51:37,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 13:51:37,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 13:51:37,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 13:51:37,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 13:51:37,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 13:51:37,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 13:51:37,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/1) ... [2022-02-09 13:51:37,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:51:37,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:37,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 13:51:37,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 13:51:37,108 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 13:51:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 13:51:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 13:51:37,108 INFO L124 BoogieDeclarations]: Specification and implementation of procedure worker given in one single declaration [2022-02-09 13:51:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-02-09 13:51:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-02-09 13:51:37,109 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 13:51:37,140 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 13:51:37,141 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 13:51:37,204 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 13:51:37,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 13:51:37,210 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-09 13:51:37,211 INFO L202 PluginConnector]: Adding new model TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:51:37 BoogieIcfgContainer [2022-02-09 13:51:37,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 13:51:37,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 13:51:37,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 13:51:37,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 13:51:37,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:51:37" (1/2) ... [2022-02-09 13:51:37,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d778a1 and model type TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:51:37, skipping insertion in model container [2022-02-09 13:51:37,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:51:37" (2/2) ... [2022-02-09 13:51:37,235 INFO L111 eAbstractionObserver]: Analyzing ICFG TwoActiveWorkersSirius.bpl [2022-02-09 13:51:37,238 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 13:51:37,238 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 13:51:37,239 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 13:51:37,239 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 13:51:37,271 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-09 13:51:37,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:51:37,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:37,323 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) [2022-02-09 13:51:37,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 13:51:37,367 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerThread1of1ForFork0 ======== [2022-02-09 13:51:37,376 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:51:37,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:51:37,481 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:37,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash 48807396, now seen corresponding path program 1 times [2022-02-09 13:51:37,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:37,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324717005] [2022-02-09 13:51:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:37,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:51:37,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:37,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324717005] [2022-02-09 13:51:37,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324717005] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:37,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:51:37,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:51:37,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285593765] [2022-02-09 13:51:37,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:37,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 13:51:37,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:37,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 13:51:37,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-09 13:51:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:37,662 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:37,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:37,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:37,765 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-02-09 13:51:37,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 13:51:37,780 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-09 13:51:37,784 INFO L309 ceAbstractionStarter]: Result for error location workerThread1of1ForFork0 was SAFE (1/2) [2022-02-09 13:51:37,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:51:37,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:37,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:51:37,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-02-09 13:51:37,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:51:37,804 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:51:37,804 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:51:37,843 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 13:51:37,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:37,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1513028199, now seen corresponding path program 1 times [2022-02-09 13:51:37,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:37,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459989642] [2022-02-09 13:51:37,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:37,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:51:37,848 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 13:51:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:51:37,859 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 13:51:37,859 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 13:51:37,859 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-02-09 13:51:37,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 13:51:37,861 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-09 13:51:37,861 INFO L309 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2022-02-09 13:51:37,861 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-09 13:51:37,861 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-09 13:51:37,874 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 13:51:37,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:51:37,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:37,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:51:37,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-02-09 13:51:37,936 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerThread2of2ForFork0 ======== [2022-02-09 13:51:37,937 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:51:37,937 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:51:37,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:37,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:37,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1739805655, now seen corresponding path program 1 times [2022-02-09 13:51:37,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:37,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392821136] [2022-02-09 13:51:37,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:37,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:51:38,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:38,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392821136] [2022-02-09 13:51:38,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392821136] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:51:38,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33714929] [2022-02-09 13:51:38,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:38,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:51:38,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:38,036 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) [2022-02-09 13:51:38,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 13:51:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:38,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-09 13:51:38,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:51:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:51:38,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-09 13:51:38,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33714929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:38,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-09 13:51:38,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-02-09 13:51:38,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619211104] [2022-02-09 13:51:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:38,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 13:51:38,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 13:51:38,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 13:51:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:38,161 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:38,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:38,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:38,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 13:51:38,459 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 [2022-02-09 13:51:38,460 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2017332522, now seen corresponding path program 1 times [2022-02-09 13:51:38,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:38,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654962389] [2022-02-09 13:51:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:38,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-09 13:51:38,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:38,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654962389] [2022-02-09 13:51:38,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654962389] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:51:38,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637977300] [2022-02-09 13:51:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:38,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:51:38,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:38,539 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) [2022-02-09 13:51:38,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 13:51:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:38,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-09 13:51:38,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:51:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-09 13:51:38,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:51:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-09 13:51:38,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637977300] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:51:38,696 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:51:38,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-02-09 13:51:38,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294448709] [2022-02-09 13:51:38,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:51:38,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 13:51:38,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:38,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 13:51:38,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-09 13:51:38,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:38,698 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:38,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:38,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:38,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:51:39,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 13:51:39,252 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 [2022-02-09 13:51:39,252 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:39,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:39,253 INFO L85 PathProgramCache]: Analyzing trace with hash -940230710, now seen corresponding path program 2 times [2022-02-09 13:51:39,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:39,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672523607] [2022-02-09 13:51:39,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:39,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:39,296 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-02-09 13:51:39,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:39,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672523607] [2022-02-09 13:51:39,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672523607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:39,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:51:39,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:51:39,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193675912] [2022-02-09 13:51:39,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:39,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:51:39,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:39,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:51:39,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:51:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:39,298 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:39,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:39,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:39,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:51:39,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:51:39,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:39,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 13:51:39,328 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:39,328 INFO L85 PathProgramCache]: Analyzing trace with hash 654645325, now seen corresponding path program 3 times [2022-02-09 13:51:39,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:39,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404423883] [2022-02-09 13:51:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:39,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 115 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 13:51:39,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:39,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404423883] [2022-02-09 13:51:39,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404423883] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:51:39,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226154011] [2022-02-09 13:51:39,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 13:51:39,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:51:39,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:39,598 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) [2022-02-09 13:51:39,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 13:51:39,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-09 13:51:39,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 13:51:39,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 13:51:39,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:51:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-09 13:51:39,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-09 13:51:39,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226154011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:39,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-09 13:51:39,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [22] total 28 [2022-02-09 13:51:39,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560643245] [2022-02-09 13:51:39,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:39,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-09 13:51:39,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:39,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-09 13:51:39,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-02-09 13:51:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:39,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:39,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:39,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:39,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:51:39,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:39,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:51:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 13:51:40,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 13:51:40,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:51:40,242 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:40,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:40,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1949649272, now seen corresponding path program 1 times [2022-02-09 13:51:40,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:40,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617164666] [2022-02-09 13:51:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:40,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:40,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:51:40,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:40,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617164666] [2022-02-09 13:51:40,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617164666] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:40,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:51:40,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 13:51:40,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52880392] [2022-02-09 13:51:40,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:40,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 13:51:40,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:40,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 13:51:40,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 13:51:40,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:40,259 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:40,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:40,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:40,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:51:40,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:40,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 13:51:40,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:51:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:51:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 13:51:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 13:51:40,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-02-09 13:51:40,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 13:51:40,315 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-02-09 13:51:40,315 INFO L309 ceAbstractionStarter]: Result for error location workerThread2of2ForFork0 was SAFE (1/3) [2022-02-09 13:51:40,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:51:40,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:40,317 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:51:40,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2022-02-09 13:51:40,321 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerThread1of2ForFork0 ======== [2022-02-09 13:51:40,321 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:51:40,321 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:51:40,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash 68852766, now seen corresponding path program 1 times [2022-02-09 13:51:40,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:40,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904548887] [2022-02-09 13:51:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:40,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:51:40,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:40,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904548887] [2022-02-09 13:51:40,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904548887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:40,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:51:40,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:51:40,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167391473] [2022-02-09 13:51:40,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:40,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 13:51:40,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:40,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 13:51:40,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-09 13:51:40,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:40,374 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:40,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:40,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:40,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 13:51:40,452 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:40,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:40,452 INFO L85 PathProgramCache]: Analyzing trace with hash 118386235, now seen corresponding path program 1 times [2022-02-09 13:51:40,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:40,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117301039] [2022-02-09 13:51:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:40,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-09 13:51:40,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:40,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117301039] [2022-02-09 13:51:40,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117301039] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:40,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:51:40,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:51:40,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283836683] [2022-02-09 13:51:40,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:40,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:51:40,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:40,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:51:40,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:51:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:40,468 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:40,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:40,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:40,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:40,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 13:51:40,494 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:40,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:40,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2129834562, now seen corresponding path program 2 times [2022-02-09 13:51:40,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:40,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101125327] [2022-02-09 13:51:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:40,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 13:51:40,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:40,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101125327] [2022-02-09 13:51:40,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101125327] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:51:40,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025345435] [2022-02-09 13:51:40,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 13:51:40,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:51:40,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:40,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:51:40,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 13:51:40,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 13:51:40,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 13:51:40,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-09 13:51:40,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:51:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 13:51:40,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:51:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 13:51:41,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025345435] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:51:41,044 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:51:41,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2022-02-09 13:51:41,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130846641] [2022-02-09 13:51:41,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:51:41,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 13:51:41,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:41,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 13:51:41,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2022-02-09 13:51:41,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:41,045 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:41,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.5357142857142856) internal successors, (99), 28 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:41,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:41,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:41,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:43,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-02-09 13:51:43,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-09 13:51:43,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-09 13:51:43,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:43,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:43,940 INFO L85 PathProgramCache]: Analyzing trace with hash -286607380, now seen corresponding path program 3 times [2022-02-09 13:51:43,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:43,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693627462] [2022-02-09 13:51:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:43,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-02-09 13:51:44,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:44,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693627462] [2022-02-09 13:51:44,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693627462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:44,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:51:44,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:51:44,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418529839] [2022-02-09 13:51:44,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:44,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:51:44,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:44,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:51:44,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:51:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:44,003 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:44,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-02-09 13:51:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 13:51:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:44,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-09 13:51:44,301 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 13:51:44,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:44,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1343666101, now seen corresponding path program 4 times [2022-02-09 13:51:44,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:44,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508456214] [2022-02-09 13:51:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:44,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 77 proven. 821 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-02-09 13:51:44,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:44,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508456214] [2022-02-09 13:51:44,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508456214] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:51:44,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273432136] [2022-02-09 13:51:44,939 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 13:51:44,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:51:44,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:44,956 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:51:44,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 13:51:44,998 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 13:51:44,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 13:51:44,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 60 conjunts are in the unsatisfiable core [2022-02-09 13:51:45,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:51:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 661 proven. 293 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 13:51:46,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:51:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 491 proven. 463 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 13:51:48,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273432136] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:51:48,159 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:51:48,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 38, 38] total 114 [2022-02-09 13:51:48,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658329662] [2022-02-09 13:51:48,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:51:48,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-09 13:51:48,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-09 13:51:48,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2466, Invalid=10874, Unknown=0, NotChecked=0, Total=13340 [2022-02-09 13:51:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:48,164 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:48,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 115 states have (on average 3.747826086956522) internal successors, (431), 115 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:51:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:51:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-09 13:51:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:51:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:52:30,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 13:52:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:52:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-02-09 13:52:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:52:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 798 states. [2022-02-09 13:52:30,292 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-02-09 13:52:30,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-09 13:52:30,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:52:30,509 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1] [2022-02-09 13:52:30,509 INFO L309 ceAbstractionStarter]: Result for error location workerThread1of2ForFork0 was SAFE (2/3) [2022-02-09 13:52:30,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:52:30,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:52:30,523 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:52:30,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2022-02-09 13:52:30,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:52:30,529 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:52:30,529 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:52:30,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 13:52:30,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:52:30,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1630126081, now seen corresponding path program 1 times [2022-02-09 13:52:30,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:52:30,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46124567] [2022-02-09 13:52:30,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:52:30,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:52:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:52:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 13:52:30,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:52:30,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46124567] [2022-02-09 13:52:30,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46124567] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:52:30,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:52:30,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 13:52:30,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423783657] [2022-02-09 13:52:30,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:52:30,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 13:52:30,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:52:30,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 13:52:30,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 13:52:30,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:52:30,607 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:52:30,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:52:30,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:52:30,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 13:52:30,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-09 13:52:30,693 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 13:52:30,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:52:30,693 INFO L85 PathProgramCache]: Analyzing trace with hash -194468773, now seen corresponding path program 1 times [2022-02-09 13:52:30,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:52:30,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6466954] [2022-02-09 13:52:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:52:30,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:52:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:52:30,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:52:30,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:52:30,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6466954] [2022-02-09 13:52:30,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6466954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:52:30,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:52:30,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 13:52:30,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908751846] [2022-02-09 13:52:30,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:52:30,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 13:52:30,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:52:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 13:52:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 13:52:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:52:30,711 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:52:30,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 13:52:30,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 13:52:30,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:52:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 13:52:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 13:52:30,734 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-02-09 13:52:30,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-09 13:52:30,736 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-09 13:52:30,737 INFO L309 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/3) [2022-02-09 13:52:30,737 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-02-09 13:52:30,737 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 13:52:30,741 INFO L202 PluginConnector]: Adding new model TwoActiveWorkersSirius.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 01:52:30 BasicIcfg [2022-02-09 13:52:30,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 13:52:30,742 INFO L158 Benchmark]: Toolchain (without parser) took 53723.58ms. Allocated memory was 202.4MB in the beginning and 897.6MB in the end (delta: 695.2MB). Free memory was 161.6MB in the beginning and 264.0MB in the end (delta: -102.4MB). Peak memory consumption was 595.2MB. Max. memory is 8.0GB. [2022-02-09 13:52:30,742 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.49ms. Allocated memory is still 202.4MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 13:52:30,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.77ms. Allocated memory is still 202.4MB. Free memory was 161.5MB in the beginning and 160.0MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-09 13:52:30,742 INFO L158 Benchmark]: Boogie Preprocessor took 11.43ms. Allocated memory is still 202.4MB. Free memory was 160.0MB in the beginning and 159.1MB in the end (delta: 931.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 13:52:30,742 INFO L158 Benchmark]: RCFGBuilder took 159.73ms. Allocated memory is still 202.4MB. Free memory was 159.0MB in the beginning and 150.9MB in the end (delta: 8.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-09 13:52:30,743 INFO L158 Benchmark]: TraceAbstraction took 53528.65ms. Allocated memory was 202.4MB in the beginning and 897.6MB in the end (delta: 695.2MB). Free memory was 150.4MB in the beginning and 264.0MB in the end (delta: -113.6MB). Peak memory consumption was 582.6MB. Max. memory is 8.0GB. [2022-02-09 13:52:30,744 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 0.49ms. Allocated memory is still 202.4MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.77ms. Allocated memory is still 202.4MB. Free memory was 161.5MB in the beginning and 160.0MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.43ms. Allocated memory is still 202.4MB. Free memory was 160.0MB in the beginning and 159.1MB in the end (delta: 931.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 159.73ms. Allocated memory is still 202.4MB. Free memory was 159.0MB in the beginning and 150.9MB in the end (delta: 8.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 53528.65ms. Allocated memory was 202.4MB in the beginning and 897.6MB in the end (delta: 695.2MB). Free memory was 150.4MB in the beginning and 264.0MB in the end (delta: -113.6MB). Peak memory consumption was 582.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 132, positive: 106, positive conditional: 34, positive unconditional: 72, negative: 26, negative conditional: 19, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 115, positive: 106, positive conditional: 34, positive unconditional: 72, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 115, positive: 106, positive conditional: 34, positive unconditional: 72, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 117, positive: 106, positive conditional: 28, positive unconditional: 78, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 117, positive: 106, positive conditional: 26, positive unconditional: 80, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 117, positive: 106, positive conditional: 26, positive unconditional: 80, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, positive: 69, positive conditional: 1, positive unconditional: 68, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 45, negative conditional: 5, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, positive: 37, positive conditional: 25, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 78, unknown conditional: 3, unknown unconditional: 75] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 69, Positive conditional cache size: 1, Positive unconditional cache size: 68, Negative cache size: 9, Negative conditional cache size: 2, Negative unconditional cache size: 7, Eliminated conditions: 2, Maximal queried relation: 1, Independence queries for same thread: 17 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 30, Number of trivial persistent sets: 28, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 132, positive: 106, positive conditional: 34, positive unconditional: 72, negative: 26, negative conditional: 19, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 115, positive: 106, positive conditional: 34, positive unconditional: 72, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 115, positive: 106, positive conditional: 34, positive unconditional: 72, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 117, positive: 106, positive conditional: 28, positive unconditional: 78, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 117, positive: 106, positive conditional: 26, positive unconditional: 80, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 117, positive: 106, positive conditional: 26, positive unconditional: 80, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, positive: 69, positive conditional: 1, positive unconditional: 68, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 45, negative conditional: 5, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, positive: 37, positive conditional: 25, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 78, unknown conditional: 3, unknown unconditional: 75] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 69, Positive conditional cache size: 1, Positive unconditional cache size: 68, Negative cache size: 9, Negative conditional cache size: 2, Negative unconditional cache size: 7, Eliminated conditions: 2, Maximal queried relation: 1, Independence queries for same thread: 17 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 7, negative conditional: 4, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 49, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 49, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 18, Number of trivial persistent sets: 18, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 7, negative conditional: 4, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 49, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 49, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3012, positive: 2293, positive conditional: 2029, positive unconditional: 264, negative: 719, negative conditional: 693, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2411, positive: 2293, positive conditional: 2029, positive unconditional: 264, negative: 118, negative conditional: 92, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2411, positive: 2293, positive conditional: 2029, positive unconditional: 264, negative: 118, negative conditional: 92, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2706, positive: 2293, positive conditional: 2003, positive unconditional: 290, negative: 413, negative conditional: 295, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2706, positive: 2293, positive conditional: 1922, positive unconditional: 371, negative: 413, negative conditional: 295, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2706, positive: 2293, positive conditional: 1922, positive unconditional: 371, negative: 413, negative conditional: 295, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 431, positive: 316, positive conditional: 66, positive unconditional: 250, negative: 115, negative conditional: 87, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 431, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 193, negative conditional: 0, negative unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 193, positive: 78, positive conditional: 66, positive unconditional: 12, negative: 115, negative conditional: 87, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 232, positive: 98, positive conditional: 61, positive unconditional: 37, negative: 134, negative conditional: 90, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2706, positive: 1977, positive conditional: 1856, positive unconditional: 121, negative: 298, negative conditional: 208, negative unconditional: 90, unknown: 431, unknown conditional: 153, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 431, Positive cache size: 316, Positive conditional cache size: 66, Positive unconditional cache size: 250, Negative cache size: 115, Negative conditional cache size: 87, Negative unconditional cache size: 28, Eliminated conditions: 81, Maximal queried relation: 4, Independence queries for same thread: 601 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 141, Number of trivial persistent sets: 124, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 290, positive: 264, positive conditional: 0, positive unconditional: 264, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3012, positive: 2293, positive conditional: 2029, positive unconditional: 264, negative: 719, negative conditional: 693, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2411, positive: 2293, positive conditional: 2029, positive unconditional: 264, negative: 118, negative conditional: 92, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2411, positive: 2293, positive conditional: 2029, positive unconditional: 264, negative: 118, negative conditional: 92, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2706, positive: 2293, positive conditional: 2003, positive unconditional: 290, negative: 413, negative conditional: 295, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2706, positive: 2293, positive conditional: 1922, positive unconditional: 371, negative: 413, negative conditional: 295, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2706, positive: 2293, positive conditional: 1922, positive unconditional: 371, negative: 413, negative conditional: 295, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 431, positive: 316, positive conditional: 66, positive unconditional: 250, negative: 115, negative conditional: 87, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 431, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 193, negative conditional: 0, negative unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 193, positive: 78, positive conditional: 66, positive unconditional: 12, negative: 115, negative conditional: 87, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 232, positive: 98, positive conditional: 61, positive unconditional: 37, negative: 134, negative conditional: 90, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2706, positive: 1977, positive conditional: 1856, positive unconditional: 121, negative: 298, negative conditional: 208, negative unconditional: 90, unknown: 431, unknown conditional: 153, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 431, Positive cache size: 316, Positive conditional cache size: 66, Positive unconditional cache size: 250, Negative cache size: 115, Negative conditional cache size: 87, Negative unconditional cache size: 28, Eliminated conditions: 81, Maximal queried relation: 4, Independence queries for same thread: 601 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14884, positive: 11161, positive conditional: 10899, positive unconditional: 262, negative: 3723, negative conditional: 3697, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11681, positive: 11161, positive conditional: 10899, positive unconditional: 262, negative: 520, negative conditional: 494, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11681, positive: 11161, positive conditional: 10899, positive unconditional: 262, negative: 520, negative conditional: 494, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13520, positive: 11161, positive conditional: 10893, positive unconditional: 268, negative: 2359, negative conditional: 1839, negative unconditional: 520, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13520, positive: 11161, positive conditional: 10459, positive unconditional: 702, negative: 2359, negative conditional: 1839, negative unconditional: 520, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13520, positive: 11161, positive conditional: 10459, positive unconditional: 702, negative: 2359, negative conditional: 1839, negative unconditional: 520, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1077, positive: 729, positive conditional: 478, positive unconditional: 251, negative: 348, negative conditional: 320, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1077, positive: 239, positive conditional: 0, positive unconditional: 239, negative: 838, negative conditional: 0, negative unconditional: 838, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 838, positive: 490, positive conditional: 478, positive unconditional: 12, negative: 348, negative conditional: 320, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1033, positive: 625, positive conditional: 588, positive unconditional: 38, negative: 408, negative conditional: 390, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13520, positive: 10432, positive conditional: 9981, positive unconditional: 451, negative: 2011, negative conditional: 1519, negative unconditional: 492, unknown: 1077, unknown conditional: 798, unknown unconditional: 279] , Statistics on independence cache: Total cache size (in pairs): 1077, Positive cache size: 729, Positive conditional cache size: 478, Positive unconditional cache size: 251, Negative cache size: 348, Negative conditional cache size: 320, Negative unconditional cache size: 28, Eliminated conditions: 434, Maximal queried relation: 4, Independence queries for same thread: 3203 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 179, Number of trivial persistent sets: 154, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 288, positive: 262, positive conditional: 0, positive unconditional: 262, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14884, positive: 11161, positive conditional: 10899, positive unconditional: 262, negative: 3723, negative conditional: 3697, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11681, positive: 11161, positive conditional: 10899, positive unconditional: 262, negative: 520, negative conditional: 494, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11681, positive: 11161, positive conditional: 10899, positive unconditional: 262, negative: 520, negative conditional: 494, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13520, positive: 11161, positive conditional: 10893, positive unconditional: 268, negative: 2359, negative conditional: 1839, negative unconditional: 520, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13520, positive: 11161, positive conditional: 10459, positive unconditional: 702, negative: 2359, negative conditional: 1839, negative unconditional: 520, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13520, positive: 11161, positive conditional: 10459, positive unconditional: 702, negative: 2359, negative conditional: 1839, negative unconditional: 520, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1077, positive: 729, positive conditional: 478, positive unconditional: 251, negative: 348, negative conditional: 320, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1077, positive: 239, positive conditional: 0, positive unconditional: 239, negative: 838, negative conditional: 0, negative unconditional: 838, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 838, positive: 490, positive conditional: 478, positive unconditional: 12, negative: 348, negative conditional: 320, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1033, positive: 625, positive conditional: 588, positive unconditional: 38, negative: 408, negative conditional: 390, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13520, positive: 10432, positive conditional: 9981, positive unconditional: 451, negative: 2011, negative conditional: 1519, negative unconditional: 492, unknown: 1077, unknown conditional: 798, unknown unconditional: 279] , Statistics on independence cache: Total cache size (in pairs): 1077, Positive cache size: 729, Positive conditional cache size: 478, Positive unconditional cache size: 251, Negative cache size: 348, Negative conditional cache size: 320, Negative unconditional cache size: 28, Eliminated conditions: 434, Maximal queried relation: 4, Independence queries for same thread: 3203 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1129, positive: 895, positive conditional: 633, positive unconditional: 262, negative: 234, negative conditional: 208, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 989, positive: 895, positive conditional: 633, positive unconditional: 262, negative: 94, negative conditional: 68, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 989, positive: 895, positive conditional: 633, positive unconditional: 262, negative: 94, negative conditional: 68, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1040, positive: 895, positive conditional: 588, positive unconditional: 307, negative: 145, negative conditional: 51, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1040, positive: 895, positive conditional: 572, positive unconditional: 323, negative: 145, negative conditional: 51, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1040, positive: 895, positive conditional: 572, positive unconditional: 323, negative: 145, negative conditional: 51, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 314, positive: 254, positive conditional: 13, positive unconditional: 241, negative: 60, negative conditional: 30, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 314, positive: 231, positive conditional: 0, positive unconditional: 231, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 83, positive: 23, positive conditional: 13, positive unconditional: 10, negative: 60, negative conditional: 30, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, positive: 50, positive conditional: 8, positive unconditional: 42, negative: 39, negative conditional: 19, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1040, positive: 641, positive conditional: 559, positive unconditional: 82, negative: 85, negative conditional: 21, negative unconditional: 64, unknown: 314, unknown conditional: 43, unknown unconditional: 271] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 254, Positive conditional cache size: 13, Positive unconditional cache size: 241, Negative cache size: 60, Negative conditional cache size: 30, Negative unconditional cache size: 30, Eliminated conditions: 16, Maximal queried relation: 2, Independence queries for same thread: 140 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 156, Number of trivial persistent sets: 148, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 288, positive: 262, positive conditional: 0, positive unconditional: 262, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1129, positive: 895, positive conditional: 633, positive unconditional: 262, negative: 234, negative conditional: 208, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 989, positive: 895, positive conditional: 633, positive unconditional: 262, negative: 94, negative conditional: 68, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 989, positive: 895, positive conditional: 633, positive unconditional: 262, negative: 94, negative conditional: 68, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1040, positive: 895, positive conditional: 588, positive unconditional: 307, negative: 145, negative conditional: 51, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1040, positive: 895, positive conditional: 572, positive unconditional: 323, negative: 145, negative conditional: 51, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1040, positive: 895, positive conditional: 572, positive unconditional: 323, negative: 145, negative conditional: 51, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 314, positive: 254, positive conditional: 13, positive unconditional: 241, negative: 60, negative conditional: 30, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 314, positive: 231, positive conditional: 0, positive unconditional: 231, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 83, positive: 23, positive conditional: 13, positive unconditional: 10, negative: 60, negative conditional: 30, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, positive: 50, positive conditional: 8, positive unconditional: 42, negative: 39, negative conditional: 19, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1040, positive: 641, positive conditional: 559, positive unconditional: 82, negative: 85, negative conditional: 21, negative unconditional: 64, unknown: 314, unknown conditional: 43, unknown unconditional: 271] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 254, Positive conditional cache size: 13, Positive unconditional cache size: 241, Negative cache size: 60, Negative conditional cache size: 30, Negative unconditional cache size: 30, Eliminated conditions: 16, Maximal queried relation: 2, Independence queries for same thread: 140 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: 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: workerThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 2 thread instances CFG has 4 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 17/17 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: workerThread2of2ForFork0 with 1 thread instances CFG has 4 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 288 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 963 SizeOfPredicates, 2 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 410/547 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: workerThread1of2ForFork0 with 1 thread instances CFG has 4 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 45.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 954, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 581 NumberOfCodeBlocks, 581 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 764 ConstructedInterpolants, 0 QuantifiedInterpolants, 4324 SizeOfPredicates, 2 NumberOfNonLiveVariables, 317 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 2238/3891 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! [2022-02-09 13:52:30,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Ended with exit code 0 [2022-02-09 13:52:31,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Forceful destruction successful, exit code 0 [2022-02-09 13:52:31,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2022-02-09 13:52:31,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2022-02-09 13:52:31,603 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 [2022-02-09 13:52:31,794 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...