/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-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 20:20:03,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 20:20:03,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 20:20:03,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 20:20:03,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 20:20:03,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 20:20:03,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 20:20:03,526 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-NewStatesSleep-NoLbe.epf [2021-08-21 20:20:03,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 20:20:03,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 20:20:03,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 20:20:03,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 20:20:03,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 20:20:03,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 20:20:03,545 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 20:20:03,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 20:20:03,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 20:20:03,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 20:20:03,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 20:20:03,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 20:20:03,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 20:20:03,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 20:20:03,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 20:20:03,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 20:20:03,547 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-21 20:20:03,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 20:20:03,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 20:20:03,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 20:20:03,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 20:20:03,808 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 20:20:03,809 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 20:20:03,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2021-08-21 20:20:03,810 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2021-08-21 20:20:03,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 20:20:03,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 20:20:03,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 20:20:03,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 20:20:03,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 20:20:03,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 20:20:03,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 20:20:03,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 20:20:03,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 20:20:03,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 20:20:03,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 20:20:03,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 20:20:03,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 20:20:03,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/1) ... [2021-08-21 20:20:03,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 20:20:03,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 20:20:03,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 20:20:03,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 20:20:03,936 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-21 20:20:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-21 20:20:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-21 20:20:03,936 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-21 20:20:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-21 20:20:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-21 20:20:03,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 20:20:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 20:20:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 20:20:03,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-21 20:20:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-21 20:20:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-21 20:20:03,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-21 20:20:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-21 20:20:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-21 20:20:03,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-08-21 20:20:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-08-21 20:20:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-08-21 20:20:03,938 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-08-21 20:20:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-08-21 20:20:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-08-21 20:20:03,940 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 20:20:04,153 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 20:20:04,153 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-21 20:20:04,155 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:20:04 BoogieIcfgContainer [2021-08-21 20:20:04,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 20:20:04,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 20:20:04,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 20:20:04,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 20:20:04,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 08:20:03" (1/2) ... [2021-08-21 20:20:04,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aae8fb9 and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:20:04, skipping insertion in model container [2021-08-21 20:20:04,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:20:04" (2/2) ... [2021-08-21 20:20:04,160 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2021-08-21 20:20:04,163 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 20:20:04,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 20:20:04,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 20:20:04,163 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 20:20:04,320 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-08-21 20:20:04,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-21 20:20:04,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 20:20:04,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-21 20:20:04,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-21 20:20:04,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 20:20:04,385 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 20:20:04,385 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-08-21 20:20:04,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:04,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:04,819 INFO L82 PathProgramCache]: Analyzing trace with hash -963017113, now seen corresponding path program 1 times [2021-08-21 20:20:04,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:04,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723337012] [2021-08-21 20:20:04,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:04,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-08-21 20:20:04,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 20:20:04,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723337012] [2021-08-21 20:20:04,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723337012] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 20:20:04,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 20:20:04,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 20:20:04,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301805463] [2021-08-21 20:20:04,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 20:20:04,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 20:20:04,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 20:20:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 20:20:04,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:04,998 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 20:20:04,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 20:20:04,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 20:20:05,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:05,260 INFO L82 PathProgramCache]: Analyzing trace with hash 143439142, now seen corresponding path program 2 times [2021-08-21 20:20:05,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:05,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846222044] [2021-08-21 20:20:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:05,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-08-21 20:20:05,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 20:20:05,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846222044] [2021-08-21 20:20:05,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846222044] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 20:20:05,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 20:20:05,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 20:20:05,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151128895] [2021-08-21 20:20:05,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 20:20:05,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 20:20:05,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 20:20:05,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 20:20:05,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,327 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 20:20:05,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 20:20:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 20:20:05,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:05,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:05,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1271555551, now seen corresponding path program 3 times [2021-08-21 20:20:05,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:05,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174205493] [2021-08-21 20:20:05,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:05,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-08-21 20:20:05,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 20:20:05,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174205493] [2021-08-21 20:20:05,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174205493] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 20:20:05,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 20:20:05,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 20:20:05,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821580969] [2021-08-21 20:20:05,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 20:20:05,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 20:20:05,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 20:20:05,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 20:20:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,633 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 20:20:05,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 20:20:05,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 20:20:05,783 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:05,785 INFO L82 PathProgramCache]: Analyzing trace with hash -419172420, now seen corresponding path program 4 times [2021-08-21 20:20:05,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:05,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984667105] [2021-08-21 20:20:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:05,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:05,833 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-08-21 20:20:05,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 20:20:05,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984667105] [2021-08-21 20:20:05,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984667105] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 20:20:05,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 20:20:05,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 20:20:05,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050439577] [2021-08-21 20:20:05,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 20:20:05,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 20:20:05,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 20:20:05,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 20:20:05,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,835 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 20:20:05,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 20:20:05,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 20:20:05,858 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:05,858 INFO L82 PathProgramCache]: Analyzing trace with hash -810421189, now seen corresponding path program 5 times [2021-08-21 20:20:05,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:05,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699356460] [2021-08-21 20:20:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:05,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-21 20:20:05,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 20:20:05,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699356460] [2021-08-21 20:20:05,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699356460] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 20:20:05,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 20:20:05,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 20:20:05,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318314504] [2021-08-21 20:20:05,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 20:20:05,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 20:20:05,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 20:20:05,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 20:20:05,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,888 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 20:20:05,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 20:20:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 20:20:05,911 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:05,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:05,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1250660342, now seen corresponding path program 6 times [2021-08-21 20:20:05,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:05,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489905856] [2021-08-21 20:20:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:05,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-08-21 20:20:05,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 20:20:05,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489905856] [2021-08-21 20:20:05,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489905856] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 20:20:05,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 20:20:05,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 20:20:05,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434721144] [2021-08-21 20:20:05,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 20:20:05,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 20:20:05,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 20:20:05,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 20:20:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,960 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 20:20:05,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 20:20:05,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:05,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 20:20:05,980 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:05,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:05,981 INFO L82 PathProgramCache]: Analyzing trace with hash -79880111, now seen corresponding path program 7 times [2021-08-21 20:20:05,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:05,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149245078] [2021-08-21 20:20:05,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:05,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 20:20:06,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 20:20:06,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149245078] [2021-08-21 20:20:06,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149245078] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-21 20:20:06,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808445643] [2021-08-21 20:20:06,472 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-21 20:20:06,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 20:20:06,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 20:20:06,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-21 20:20:06,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-21 20:20:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 20:20:06,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 37 conjunts are in the unsatisfiable core [2021-08-21 20:20:06,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-21 20:20:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 20:20:07,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808445643] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-21 20:20:07,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-21 20:20:07,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-08-21 20:20:07,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877323262] [2021-08-21 20:20:07,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 20:20:07,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 20:20:07,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 20:20:07,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-08-21 20:20:07,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:07,171 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 20:20:07,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 14 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 20:20:07,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 20:20:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 20:20:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-21 20:20:07,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-21 20:20:07,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-21 20:20:07,830 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION (and 7 more)] === [2021-08-21 20:20:07,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 20:20:07,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1428257903, now seen corresponding path program 8 times [2021-08-21 20:20:07,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 20:20:07,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235485191] [2021-08-21 20:20:07,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 20:20:07,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 20:20:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 20:20:07,840 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-21 20:20:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 20:20:07,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-21 20:20:07,872 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-21 20:20:07,873 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-21 20:20:07,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0INUSE_VIOLATION [2021-08-21 20:20:07,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7INUSE_VIOLATION [2021-08-21 20:20:07,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8INUSE_VIOLATION [2021-08-21 20:20:07,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9INUSE_VIOLATION [2021-08-21 20:20:07,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3INUSE_VIOLATION [2021-08-21 20:20:07,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5INUSE_VIOLATION [2021-08-21 20:20:07,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork2Err1INUSE_VIOLATION [2021-08-21 20:20:07,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork2Err2INUSE_VIOLATION [2021-08-21 20:20:07,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Thread1of1ForFork3Err4INUSE_VIOLATION [2021-08-21 20:20:07,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Thread1of1ForFork3Err6INUSE_VIOLATION [2021-08-21 20:20:07,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 20:20:07,883 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 20:20:07,884 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 20:20:07,925 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 08:20:07 BasicIcfg [2021-08-21 20:20:07,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 20:20:07,927 INFO L168 Benchmark]: Toolchain (without parser) took 4092.79 ms. Allocated memory was 191.9 MB in the beginning and 382.7 MB in the end (delta: 190.8 MB). Free memory was 171.7 MB in the beginning and 311.9 MB in the end (delta: -140.2 MB). Peak memory consumption was 51.3 MB. Max. memory is 8.0 GB. [2021-08-21 20:20:07,927 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 191.9 MB. Free memory is still 172.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 20:20:07,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.68 ms. Allocated memory is still 191.9 MB. Free memory was 171.5 MB in the beginning and 170.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 20:20:07,927 INFO L168 Benchmark]: Boogie Preprocessor took 14.13 ms. Allocated memory is still 191.9 MB. Free memory was 170.0 MB in the beginning and 168.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 20:20:07,928 INFO L168 Benchmark]: RCFGBuilder took 278.29 ms. Allocated memory is still 191.9 MB. Free memory was 168.8 MB in the beginning and 153.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-21 20:20:07,928 INFO L168 Benchmark]: TraceAbstraction took 3769.48 ms. Allocated memory was 191.9 MB in the beginning and 382.7 MB in the end (delta: 190.8 MB). Free memory was 152.6 MB in the beginning and 311.9 MB in the end (delta: -159.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. [2021-08-21 20:20:07,929 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 0.12 ms. Allocated memory is still 191.9 MB. Free memory is still 172.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.68 ms. Allocated memory is still 191.9 MB. Free memory was 171.5 MB in the beginning and 170.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.13 ms. Allocated memory is still 191.9 MB. Free memory was 170.0 MB in the beginning and 168.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 278.29 ms. Allocated memory is still 191.9 MB. Free memory was 168.8 MB in the beginning and 153.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3769.48 ms. Allocated memory was 191.9 MB in the beginning and 382.7 MB in the end (delta: 190.8 MB). Free memory was 152.6 MB in the beginning and 311.9 MB in the end (delta: -159.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 98310, positive: 91310, positive conditional: 91310, positive unconditional: 0, negative: 7000, negative conditional: 7000, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 93156, positive: 91310, positive conditional: 91310, positive unconditional: 0, negative: 1846, negative conditional: 1846, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 93156, positive: 91310, positive conditional: 91310, positive unconditional: 0, negative: 1846, negative conditional: 1846, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95264, positive: 91310, positive conditional: 67061, positive unconditional: 24249, negative: 3954, negative conditional: 2108, negative unconditional: 1846, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 95264, positive: 91310, positive conditional: 10306, positive unconditional: 81004, negative: 3954, negative conditional: 75, negative unconditional: 3879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 95264, positive: 91310, positive conditional: 10306, positive unconditional: 81004, negative: 3954, negative conditional: 75, negative unconditional: 3879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 760, positive: 734, positive conditional: 49, positive unconditional: 685, negative: 26, negative conditional: 6, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 760, positive: 724, positive conditional: 0, positive unconditional: 724, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 10, positive conditional: 3, positive unconditional: 7, negative: 26, negative conditional: 6, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, positive: 12, positive conditional: 5, positive unconditional: 7, negative: 94, negative conditional: 8, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 95264, positive: 90576, positive conditional: 10257, positive unconditional: 80319, negative: 3928, negative conditional: 69, negative unconditional: 3859, unknown: 760, unknown conditional: 55, unknown unconditional: 705] , Statistics on independence cache: Total cache size (in pairs): 760, Positive cache size: 734, Positive conditional cache size: 49, Positive unconditional cache size: 685, Negative cache size: 26, Negative conditional cache size: 6, Negative unconditional cache size: 20, Eliminated conditions: 58788, Maximal queried relation: 5, Independence queries for same thread: 5154 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 121]: assertion can be violated assertion can be violated We found a FailurePath: [L115] 0 assume x_0 == x_8 && y_1 == y_9; VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L116] FORK 0 fork 1 thread1(); VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L60] 1 f1_2 := false; [L61] 1 f2_3 := false; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L117] FORK 0 fork 4, 4, 4, 4 thread4(); VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L103] 2 f1_10 := false; [L104] 2 f2_11 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L63] FORK 1 fork 2, 2 thread2(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L64] FORK 1 fork 3, 3, 3 thread3(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L106] FORK 2 fork 5, 5, 5, 5, 5 thread5(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L107] FORK 2 fork 6, 6, 6, 6, 6, 6 thread6(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L30] 3 temp_4 := x_0; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L31] 3 x_0 := temp_4 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, x_0=0, x_8=-1, y_1=-1, y_9=-1] [L32] 3 f1_2 := true; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=false, temp_4=-1, x_0=0, x_8=-1, y_1=-1, y_9=-1] [L45] 4 temp_6 := y_1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=-1, y_9=-1] [L46] 4 y_1 := temp_6 + 1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L47] 4 f2_3 := true; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L33] 3 assume f2_3; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L34] 3 temp_5 := y_1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L35] 3 y_1 := temp_5 + 1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L48] 4 assume f1_2; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L36] 3 f1_2 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L49] 4 temp_7 := x_0; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=0, x_8=-1, y_1=1, y_9=-1] [L50] 4 x_0 := temp_7 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L51] 4 f2_3 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L37] 3 assume !f2_3; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L30] 3 temp_4 := x_0; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L31] 3 x_0 := temp_4 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=1, temp_5=0, temp_6=-1, temp_7=0, x_0=2, x_8=-1, y_1=1, y_9=-1] [L52] 4 assume !f1_2; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=1, temp_5=0, temp_6=-1, temp_7=0, x_0=2, x_8=-1, y_1=1, y_9=-1] [L32] 3 f1_2 := true; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=false, temp_4=1, temp_5=0, temp_6=-1, temp_7=0, x_0=2, x_8=-1, y_1=1, y_9=-1] [L45] 4 temp_6 := y_1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=false, temp_4=1, temp_5=0, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=1, y_9=-1] [L46] 4 y_1 := temp_6 + 1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=false, temp_4=1, temp_5=0, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=2, y_9=-1] [L47] 4 f2_3 := true; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=1, temp_5=0, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=2, y_9=-1] [L33] 3 assume f2_3; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=1, temp_5=0, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=2, y_9=-1] [L34] 3 temp_5 := y_1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=1, temp_5=2, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=2, y_9=-1] [L35] 3 y_1 := temp_5 + 1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=1, temp_5=2, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=3, y_9=-1] [L48] 4 assume f1_2; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=1, temp_5=2, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=3, y_9=-1] [L36] 3 f1_2 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=1, temp_5=2, temp_6=1, temp_7=0, x_0=2, x_8=-1, y_1=3, y_9=-1] [L49] 4 temp_7 := x_0; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=2, x_8=-1, y_1=3, y_9=-1] [L50] 4 x_0 := temp_7 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=-1, y_1=3, y_9=-1] [L51] 4 f2_3 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=-1, y_1=3, y_9=-1] [L37] 3 assume !f2_3; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=-1, y_1=3, y_9=-1] [L52] 4 assume !f1_2; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=-1, y_1=3, y_9=-1] [L73] 5 temp_12 := x_8; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=-1, y_1=3, y_9=-1] [L74] 5 x_8 := temp_12 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=-1] [L75] 5 f1_10 := true; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=-1] [L88] 6 temp_14 := y_9; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=-1] [L89] 6 y_9 := temp_14 + 1; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=0] [L90] 6 f2_11 := true; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=0] [L76] 5 assume f2_11; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=0] [L77] 5 temp_13 := y_9; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=0] [L78] 5 y_9 := temp_13 + 1; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=1] [L91] 6 assume f1_10; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=1] [L79] 5 f1_10 := false; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=1] [L92] 6 temp_15 := x_8; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=0, y_1=3, y_9=1] [L93] 6 x_8 := temp_15 + 1; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L94] 6 f2_11 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L80] 5 assume !f2_11; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L95] 6 assume !f1_10; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L65] JOIN 3 join 2, 2; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L66] JOIN 4 join 3, 3, 3; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L118] JOIN 1 join 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L108] JOIN 5 join 5, 5, 5, 5, 5; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L109] JOIN 6 join 6, 6, 6, 6, 6, 6; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L119] JOIN 2 join 4, 4, 4, 4; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L120] 0 assume !(x_0 == x_8 && y_1 == y_9); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] [L121] 0 assert false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, temp_4=1, temp_5=2, temp_6=1, temp_7=2, x_0=3, x_8=1, y_1=3, y_9=1] - UnprovableResult [Line: 63]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 106]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 106]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 120 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 3527.9ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.4ms, PartialOrderReductionTime: 1586.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.0ms SsaConstructionTime, 120.9ms SatisfiabilityAnalysisTime, 1297.6ms InterpolantComputationTime, 871 NumberOfCodeBlocks, 871 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 792 ConstructedInterpolants, 0 QuantifiedInterpolants, 2190 SizeOfPredicates, 16 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 885/893 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-21 20:20:07,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-08-21 20:20:08,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...