/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_2w1r-1.line930.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 02:44:44,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 02:44:44,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 02:44:44,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-04 02:44:45,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 02:44:45,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 02:44:45,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 02:44:45,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 02:44:45,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 02:44:45,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 02:44:45,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 02:44:45,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 02:44:45,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 02:44:45,043 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 02:44:45,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 02:44:45,043 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 02:44:45,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 02:44:45,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 02:44:45,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 02:44:45,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 02:44:45,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 02:44:45,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 02:44:45,044 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 02:44:45,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 02:44:45,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 02:44:45,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 02:44:45,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 02:44:45,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 02:44:45,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 02:44:45,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 02:44:45,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:44:45,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 02:44:45,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 02:44:45,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 02:44:45,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 02:44:45,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 02:44:45,046 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 02:44:45,046 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 02:44:45,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 02:44:45,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 02:44:45,047 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 02:44:45,047 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 02:44:45,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 02:44:45,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 02:44:45,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 02:44:45,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 02:44:45,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 02:44:45,375 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 02:44:45,376 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 02:44:45,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line930.bpl [2022-10-04 02:44:45,378 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line930.bpl' [2022-10-04 02:44:45,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 02:44:45,433 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 02:44:45,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 02:44:45,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 02:44:45,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 02:44:45,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 02:44:45,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 02:44:45,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 02:44:45,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 02:44:45,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/1) ... [2022-10-04 02:44:45,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:44:45,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:44:45,581 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 02:44:45,603 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 02:44:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-10-04 02:44:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-10-04 02:44:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-10-04 02:44:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-10-04 02:44:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 02:44:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 02:44:45,622 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 02:44:45,798 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 02:44:45,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 02:44:46,490 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 02:44:46,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 02:44:46,518 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-04 02:44:46,522 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:44:46 BoogieIcfgContainer [2022-10-04 02:44:46,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 02:44:46,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 02:44:46,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 02:44:46,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 02:44:46,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:44:45" (1/2) ... [2022-10-04 02:44:46,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1306ac73 and model type ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:44:46, skipping insertion in model container [2022-10-04 02:44:46,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:44:46" (2/2) ... [2022-10-04 02:44:46,542 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line930.bpl [2022-10-04 02:44:46,549 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 02:44:46,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 02:44:46,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 02:44:46,557 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 02:44:46,730 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 02:44:46,806 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:44:46,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:44:46,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:44:46,811 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 02:44:46,836 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 02:44:46,858 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:44:46,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:44:46,880 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;@74bc6ffd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:44:46,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:44:47,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:44:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:44:47,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1789715456, now seen corresponding path program 1 times [2022-10-04 02:44:47,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:44:47,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658131508] [2022-10-04 02:44:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:44:47,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:44:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:44:47,532 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 02:44:47,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:44:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658131508] [2022-10-04 02:44:47,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658131508] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:44:47,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:44:47,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 02:44:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716203532] [2022-10-04 02:44:47,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:44:47,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 02:44:47,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:44:47,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 02:44:47,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 02:44:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:44:47,592 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:44:47,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 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 02:44:47,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:44:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:44:47,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 02:44:47,665 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:44:47,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:44:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash 31780504, now seen corresponding path program 1 times [2022-10-04 02:44:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:44:47,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296799097] [2022-10-04 02:44:47,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:44:47,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:44:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:44:48,396 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 02:44:48,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:44:48,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296799097] [2022-10-04 02:44:48,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296799097] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:44:48,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:44:48,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-10-04 02:44:48,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572819987] [2022-10-04 02:44:48,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:44:48,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-04 02:44:48,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:44:48,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-04 02:44:48,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-10-04 02:44:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:44:48,405 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:44:48,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 14.3125) internal successors, (229), 17 states have internal predecessors, (229), 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 02:44:48,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:44:48,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:00,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:00,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:45:00,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 02:45:00,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:45:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:45:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1585022863, now seen corresponding path program 1 times [2022-10-04 02:45:00,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:45:00,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361408948] [2022-10-04 02:45:00,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:45:00,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:45:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:45:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:45:00,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:45:00,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361408948] [2022-10-04 02:45:00,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361408948] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:45:00,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:45:00,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 02:45:00,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046983694] [2022-10-04 02:45:00,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:45:00,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 02:45:00,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:45:00,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 02:45:00,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 02:45:00,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:00,448 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:45:00,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 02:45:00,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:00,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:45:00,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:10,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:45:10,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:45:10,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 02:45:10,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:45:10,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:45:10,415 INFO L85 PathProgramCache]: Analyzing trace with hash 286723352, now seen corresponding path program 1 times [2022-10-04 02:45:10,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:45:10,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097275067] [2022-10-04 02:45:10,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:45:10,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:45:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:45:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:45:11,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:45:11,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097275067] [2022-10-04 02:45:11,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097275067] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:45:11,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418126886] [2022-10-04 02:45:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:45:11,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:45:11,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:45:11,020 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) [2022-10-04 02:45:11,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-04 02:45:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:45:11,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 58 conjunts are in the unsatisfiable core [2022-10-04 02:45:11,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:45:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:45:12,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:45:13,337 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 02:45:13,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2022-10-04 02:45:14,745 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:45:14,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418126886] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:45:14,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:45:14,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 16] total 49 [2022-10-04 02:45:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061611648] [2022-10-04 02:45:14,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:45:14,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-04 02:45:14,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:45:14,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-04 02:45:14,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=2296, Unknown=0, NotChecked=0, Total=2450 [2022-10-04 02:45:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:14,750 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:45:14,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 18.959183673469386) internal successors, (929), 50 states have internal predecessors, (929), 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 02:45:14,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:45:14,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:45:14,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:45:14,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:50:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:50:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:50:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:50:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-10-04 02:50:15,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-04 02:50:15,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-04 02:50:15,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:50:15,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:50:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1975351547, now seen corresponding path program 1 times [2022-10-04 02:50:15,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:50:15,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315927762] [2022-10-04 02:50:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:50:15,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:50:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:50:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-04 02:50:16,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:50:16,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315927762] [2022-10-04 02:50:16,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315927762] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:50:16,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914575706] [2022-10-04 02:50:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:50:16,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:50:16,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:50:16,208 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:50:16,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-04 02:50:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:50:16,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-04 02:50:16,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:50:17,413 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:50:17,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:50:17,564 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 02:50:17,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2022-10-04 02:50:18,000 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-04 02:50:18,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914575706] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:50:18,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:50:18,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 11] total 40 [2022-10-04 02:50:18,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674312146] [2022-10-04 02:50:18,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:50:18,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-04 02:50:18,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:50:18,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-04 02:50:18,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1498, Unknown=0, NotChecked=0, Total=1640 [2022-10-04 02:50:18,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:50:18,005 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:50:18,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 22.1) internal successors, (884), 41 states have internal predecessors, (884), 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 02:50:18,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:50:18,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:50:18,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:50:18,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-10-04 02:50:18,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-10-04 02:52:55,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-04 02:52:55,298 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:52:55,298 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:52:55,298 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:52:55,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:52:55,451 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-10-04 02:52:55,454 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:52:55,459 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-04 02:52:55,464 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was TIMEOUT (1/3) [2022-10-04 02:52:55,466 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-04 02:52:55,466 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-04 02:52:55,469 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line930.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 02:52:55 BasicIcfg [2022-10-04 02:52:55,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-04 02:52:55,469 INFO L158 Benchmark]: Toolchain (without parser) took 490036.18ms. Allocated memory was 194.0MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 150.0MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. [2022-10-04 02:52:55,470 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.56ms. Allocated memory is still 194.0MB. Free memory is still 153.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-04 02:52:55,470 INFO L158 Benchmark]: Boogie Preprocessor took 109.29ms. Allocated memory is still 194.0MB. Free memory was 150.0MB in the beginning and 146.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-04 02:52:55,470 INFO L158 Benchmark]: RCFGBuilder took 975.35ms. Allocated memory is still 194.0MB. Free memory was 146.4MB in the beginning and 139.5MB in the end (delta: 6.9MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2022-10-04 02:52:55,471 INFO L158 Benchmark]: TraceAbstraction took 488942.45ms. Allocated memory was 194.0MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 138.7MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. [2022-10-04 02:52:55,472 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 0.56ms. Allocated memory is still 194.0MB. Free memory is still 153.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 109.29ms. Allocated memory is still 194.0MB. Free memory was 150.0MB in the beginning and 146.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 975.35ms. Allocated memory is still 194.0MB. Free memory was 146.4MB in the beginning and 139.5MB in the end (delta: 6.9MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. * TraceAbstraction took 488942.45ms. Allocated memory was 194.0MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 138.7MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 166, positive: 162, positive conditional: 162, 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: 13919313, positive: 13528734, positive conditional: 13528734, positive unconditional: 0, negative: 390579, negative conditional: 390579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13566629, positive: 13528734, positive conditional: 0, positive unconditional: 13528734, negative: 37895, negative conditional: 0, negative unconditional: 37895, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41502, positive: 41354, positive conditional: 0, positive unconditional: 41354, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13566629, positive: 13487380, positive conditional: 0, positive unconditional: 13487380, negative: 37747, negative conditional: 0, negative unconditional: 37747, unknown: 41502, unknown conditional: 0, unknown unconditional: 41502] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, 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: 217, positive: 214, positive conditional: 214, 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: 13919313, positive: 13528734, positive conditional: 13528734, positive unconditional: 0, negative: 390579, negative conditional: 390579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13566629, positive: 13528734, positive conditional: 0, positive unconditional: 13528734, negative: 37895, negative conditional: 0, negative unconditional: 37895, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41502, positive: 41354, positive conditional: 0, positive unconditional: 41354, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13566629, positive: 13487380, positive conditional: 0, positive unconditional: 13487380, negative: 37747, negative conditional: 0, negative unconditional: 37747, unknown: 41502, unknown conditional: 0, unknown unconditional: 41502] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, 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: 519022, positive: 505083, positive conditional: 505083, positive unconditional: 0, negative: 13939, negative conditional: 13939, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 13919313, positive: 13528734, positive conditional: 13528734, positive unconditional: 0, negative: 390579, negative conditional: 390579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13566629, positive: 13528734, positive conditional: 0, positive unconditional: 13528734, negative: 37895, negative conditional: 0, negative unconditional: 37895, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41502, positive: 41354, positive conditional: 0, positive unconditional: 41354, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13566629, positive: 13487380, positive conditional: 0, positive unconditional: 13487380, negative: 37747, negative conditional: 0, negative unconditional: 37747, unknown: 41502, unknown conditional: 0, unknown unconditional: 41502] , Statistics on independence cache: Total cache size (in pairs): 20775, Positive cache size: 20708, Positive conditional cache size: 0, Positive unconditional cache size: 20708, Negative cache size: 67, Negative conditional cache size: 0, Negative unconditional cache size: 67, Independence queries for same thread: 12779, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 875488, positive: 851670, positive conditional: 851670, positive unconditional: 0, negative: 23818, negative conditional: 23818, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 13919313, positive: 13528734, positive conditional: 13528734, positive unconditional: 0, negative: 390579, negative conditional: 390579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13566629, positive: 13528734, positive conditional: 0, positive unconditional: 13528734, negative: 37895, negative conditional: 0, negative unconditional: 37895, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41502, positive: 41354, positive conditional: 0, positive unconditional: 41354, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13566629, positive: 13487380, positive conditional: 0, positive unconditional: 13487380, negative: 37747, negative conditional: 0, negative unconditional: 37747, unknown: 41502, unknown conditional: 0, unknown unconditional: 41502] , Statistics on independence cache: Total cache size (in pairs): 21336, Positive cache size: 21269, Positive conditional cache size: 0, Positive unconditional cache size: 21269, Negative cache size: 67, Negative conditional cache size: 0, Negative unconditional cache size: 67, Independence queries for same thread: 34814, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 7310432, positive: 7102321, positive conditional: 7102321, positive unconditional: 0, negative: 208111, negative conditional: 208111, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 13919313, positive: 13528734, positive conditional: 13528734, positive unconditional: 0, negative: 390579, negative conditional: 390579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13566629, positive: 13528734, positive conditional: 0, positive unconditional: 13528734, negative: 37895, negative conditional: 0, negative unconditional: 37895, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41502, positive: 41354, positive conditional: 0, positive unconditional: 41354, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13566629, positive: 13487380, positive conditional: 0, positive unconditional: 13487380, negative: 37747, negative conditional: 0, negative unconditional: 37747, unknown: 41502, unknown conditional: 0, unknown unconditional: 41502] , Statistics on independence cache: Total cache size (in pairs): 41502, Positive cache size: 41354, Positive conditional cache size: 0, Positive unconditional cache size: 41354, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Independence queries for same thread: 220138, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 5213988, positive: 5069284, positive conditional: 5069284, positive unconditional: 0, negative: 144704, negative conditional: 144704, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 13919313, positive: 13528734, positive conditional: 13528734, positive unconditional: 0, negative: 390579, negative conditional: 390579, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13566629, positive: 13528734, positive conditional: 0, positive unconditional: 13528734, negative: 37895, negative conditional: 0, negative unconditional: 37895, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41502, positive: 41354, positive conditional: 0, positive unconditional: 41354, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13566629, positive: 13487380, positive conditional: 0, positive unconditional: 13487380, negative: 37747, negative conditional: 0, negative unconditional: 37747, unknown: 41502, unknown conditional: 0, unknown unconditional: 41502] , Statistics on independence cache: Total cache size (in pairs): 41502, Positive cache size: 41354, Positive conditional cache size: 0, Positive unconditional cache size: 41354, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Independence queries for same thread: 352684, Statistics for Abstraction: - TimeoutResultAtElement [Line: 930]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 5 procedures, 850 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 488.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 479.7s, 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: 137, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 2360 NumberOfCodeBlocks, 2360 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 3124 ConstructedInterpolants, 0 QuantifiedInterpolants, 15926 SizeOfPredicates, 59 NumberOfNonLiveVariables, 1804 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 112/392 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown