/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_1w1r-2.line591.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 02:25:30,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 02:25:30,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 02:25:30,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-04 02:25:30,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 02:25:30,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 02:25:30,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 02:25:30,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 02:25:30,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 02:25:30,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 02:25:30,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 02:25:30,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 02:25:30,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 02:25:30,561 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 02:25:30,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 02:25:30,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 02:25:30,563 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 02:25:30,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 02:25:30,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 02:25:30,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 02:25:30,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 02:25:30,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 02:25:30,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:25:30,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 02:25:30,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 02:25:30,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 02:25:30,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 02:25:30,566 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 02:25:30,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 02:25:30,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 02:25:30,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 02:25:30,782 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 02:25:30,784 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 02:25:30,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_1w1r-2.line591.bpl [2022-10-04 02:25:30,785 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_1w1r-2.line591.bpl' [2022-10-04 02:25:30,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 02:25:30,830 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 02:25:30,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 02:25:30,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 02:25:30,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 02:25:30,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 02:25:30,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 02:25:30,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 02:25:30,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 02:25:30,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/1) ... [2022-10-04 02:25:30,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:25:30,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:25:30,955 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) [2022-10-04 02:25:30,968 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 [2022-10-04 02:25:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-10-04 02:25:31,002 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-10-04 02:25:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 02:25:31,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 02:25:31,003 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 02:25:31,084 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 02:25:31,085 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 02:25:31,472 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 02:25:31,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 02:25:31,485 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-04 02:25:31,487 INFO L202 PluginConnector]: Adding new model ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:25:31 BoogieIcfgContainer [2022-10-04 02:25:31,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 02:25:31,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 02:25:31,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 02:25:31,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 02:25:31,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:30" (1/2) ... [2022-10-04 02:25:31,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a11d7a5 and model type ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:25:31, skipping insertion in model container [2022-10-04 02:25:31,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:25:31" (2/2) ... [2022-10-04 02:25:31,500 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.line591.bpl [2022-10-04 02:25:31,505 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 02:25:31,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 02:25:31,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 02:25:31,514 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 02:25:31,627 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-04 02:25:31,679 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:25:31,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:25:31,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:25:31,685 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) [2022-10-04 02:25:31,685 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 [2022-10-04 02:25:31,706 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:25:31,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:25:31,715 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2abac5cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:25:31,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:25:31,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:25:31,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:25:31,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1353758184, now seen corresponding path program 1 times [2022-10-04 02:25:31,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:25:31,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567552740] [2022-10-04 02:25:31,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:25:31,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:25:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:25:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:25:32,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:25:32,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567552740] [2022-10-04 02:25:32,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567552740] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:25:32,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:25:32,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 02:25:32,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142707712] [2022-10-04 02:25:32,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:25:32,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 02:25:32,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:25:32,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 02:25:32,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 02:25:32,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:25:32,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:25:32,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 70.0) internal successors, (140), 2 states have internal predecessors, (140), 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) [2022-10-04 02:25:32,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:25:32,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:25:32,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 02:25:32,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:25:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:25:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1698633809, now seen corresponding path program 1 times [2022-10-04 02:25:32,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:25:32,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564552871] [2022-10-04 02:25:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:25:32,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:25:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:25:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:25:32,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:25:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564552871] [2022-10-04 02:25:32,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564552871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:25:32,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:25:32,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-04 02:25:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593603059] [2022-10-04 02:25:32,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:25:32,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-04 02:25:32,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:25:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-04 02:25:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-04 02:25:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:25:32,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:25:32,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 17.555555555555557) internal successors, (158), 10 states have internal predecessors, (158), 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) [2022-10-04 02:25:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:25:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:25:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:25:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-04 02:25:33,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:25:33,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 02:25:33,144 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-04 02:25:33,145 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was SAFE (1/2) [2022-10-04 02:25:33,149 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:25:33,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:25:33,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:25:33,151 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) [2022-10-04 02:25:33,164 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:25:33,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 02:25:33,165 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2abac5cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:25:33,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:25:33,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 02:25:33,169 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:25:33,170 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/2) [2022-10-04 02:25:33,170 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-04 02:25:33,170 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-04 02:25:33,173 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 [2022-10-04 02:25:33,173 INFO L202 PluginConnector]: Adding new model ring_1w1r-2.line591.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 02:25:33 BasicIcfg [2022-10-04 02:25:33,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-04 02:25:33,174 INFO L158 Benchmark]: Toolchain (without parser) took 2343.93ms. Allocated memory was 189.8MB in the beginning and 250.6MB in the end (delta: 60.8MB). Free memory was 146.5MB in the beginning and 100.6MB in the end (delta: 45.9MB). Peak memory consumption was 108.0MB. Max. memory is 8.0GB. [2022-10-04 02:25:33,174 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-04 02:25:33,178 INFO L158 Benchmark]: Boogie Preprocessor took 69.83ms. Allocated memory is still 189.8MB. Free memory was 146.5MB in the beginning and 143.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-04 02:25:33,180 INFO L158 Benchmark]: RCFGBuilder took 585.31ms. Allocated memory is still 189.8MB. Free memory was 143.6MB in the beginning and 148.5MB in the end (delta: -4.9MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2022-10-04 02:25:33,180 INFO L158 Benchmark]: TraceAbstraction took 1685.07ms. Allocated memory was 189.8MB in the beginning and 250.6MB in the end (delta: 60.8MB). Free memory was 147.9MB in the beginning and 100.6MB in the end (delta: 47.3MB). Peak memory consumption was 108.3MB. Max. memory is 8.0GB. [2022-10-04 02:25:33,183 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 0.11ms. Allocated memory is still 189.8MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 69.83ms. Allocated memory is still 189.8MB. Free memory was 146.5MB in the beginning and 143.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 585.31ms. Allocated memory is still 189.8MB. Free memory was 143.6MB in the beginning and 148.5MB in the end (delta: -4.9MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1685.07ms. Allocated memory was 189.8MB in the beginning and 250.6MB in the end (delta: 60.8MB). Free memory was 147.9MB in the beginning and 100.6MB in the end (delta: 47.3MB). Peak memory consumption was 108.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 34, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12217, positive: 11682, positive conditional: 11682, positive unconditional: 0, negative: 535, negative conditional: 535, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11706, positive: 11682, positive conditional: 0, positive unconditional: 11682, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10254, positive: 10232, positive conditional: 0, positive unconditional: 10232, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11706, positive: 1450, positive conditional: 0, positive unconditional: 1450, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 10254, unknown conditional: 0, unknown unconditional: 10254] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 4, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 52, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12217, positive: 11682, positive conditional: 11682, positive unconditional: 0, negative: 535, negative conditional: 535, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11706, positive: 11682, positive conditional: 0, positive unconditional: 11682, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10254, positive: 10232, positive conditional: 0, positive unconditional: 10232, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11706, positive: 1450, positive conditional: 0, positive unconditional: 1450, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 10254, unknown conditional: 0, unknown unconditional: 10254] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 7, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 12131, positive: 11603, positive conditional: 11603, positive unconditional: 0, negative: 528, negative conditional: 528, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12217, positive: 11682, positive conditional: 11682, positive unconditional: 0, negative: 535, negative conditional: 535, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11706, positive: 11682, positive conditional: 0, positive unconditional: 11682, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10254, positive: 10232, positive conditional: 0, positive unconditional: 10232, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11706, positive: 1450, positive conditional: 0, positive unconditional: 1450, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 10254, unknown conditional: 0, unknown unconditional: 10254] , Statistics on independence cache: Total cache size (in pairs): 10254, Positive cache size: 10232, Positive conditional cache size: 0, Positive unconditional cache size: 10232, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Independence queries for same thread: 511, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - PositiveResult [Line: 591]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 3 procedures, 467 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.2s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 3 procedures, 467 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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: 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! [2022-10-04 02:25:33,224 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 [2022-10-04 02:25:33,425 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 [2022-10-04 02:25:33,626 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...