/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.commutativity.condition.synthesis SUFFICIENT_WITH_CONTEXT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-158c277 [2024-11-14 09:13:39,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 09:13:39,367 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-14 09:13:39,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 09:13:39,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 09:13:39,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 09:13:39,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 09:13:39,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 09:13:39,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 09:13:39,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 09:13:39,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 09:13:39,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * Use SBE=true [2024-11-14 09:13:39,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 09:13:39,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 09:13:39,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 09:13:39,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 09:13:39,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 09:13:39,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-14 09:13:39,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 09:13:39,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 09:13:39,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-14 09:13:39,406 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-14 09:13:39,406 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-14 09:13:39,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT_WITH_CONTEXT [2024-11-14 09:13:39,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 09:13:39,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 09:13:39,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 09:13:39,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 09:13:39,715 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 09:13:39,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-11-14 09:13:41,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 09:13:41,329 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 09:13:41,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-11-14 09:13:41,344 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/2c3ac71e6/11be5befcfc4445fbe38ee6fd86c53f1/FLAG453bbb886 [2024-11-14 09:13:41,357 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/2c3ac71e6/11be5befcfc4445fbe38ee6fd86c53f1 [2024-11-14 09:13:41,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 09:13:41,360 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-14 09:13:41,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 09:13:41,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 09:13:41,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 09:13:41,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77be8c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41, skipping insertion in model container [2024-11-14 09:13:41,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 09:13:41,537 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-14 09:13:41,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 09:13:41,669 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 09:13:41,679 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-14 09:13:41,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 09:13:41,747 INFO L204 MainTranslator]: Completed translation [2024-11-14 09:13:41,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41 WrapperNode [2024-11-14 09:13:41,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 09:13:41,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 09:13:41,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 09:13:41,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 09:13:41,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,781 INFO L138 Inliner]: procedures = 168, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 99 [2024-11-14 09:13:41,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 09:13:41,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 09:13:41,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 09:13:41,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 09:13:41,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,806 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 09:13:41,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 09:13:41,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 09:13:41,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 09:13:41,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (1/1) ... [2024-11-14 09:13:41,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 09:13:41,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-14 09:13:41,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 09:13:41,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 09:13:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-14 09:13:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-14 09:13:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-14 09:13:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 09:13:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 09:13:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 09:13:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-14 09:13:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 09:13:41,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 09:13:41,865 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 09:13:41,988 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 09:13:41,990 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 09:13:42,216 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 09:13:42,216 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 09:13:42,267 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 09:13:42,267 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 09:13:42,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:13:42 BoogieIcfgContainer [2024-11-14 09:13:42,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 09:13:42,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 09:13:42,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 09:13:42,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 09:13:42,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 09:13:41" (1/3) ... [2024-11-14 09:13:42,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6d489d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:13:42, skipping insertion in model container [2024-11-14 09:13:42,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:13:41" (2/3) ... [2024-11-14 09:13:42,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6d489d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:13:42, skipping insertion in model container [2024-11-14 09:13:42,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:13:42" (3/3) ... [2024-11-14 09:13:42,279 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2024-11-14 09:13:42,290 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 09:13:42,292 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_69-refine-protected-loop-interval_true.i that has 2 procedures, 104 locations, 1 initial locations, 3 loop locations, and 2 error locations. [2024-11-14 09:13:42,292 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 09:13:42,357 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 09:13:42,405 INFO L123 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 09:13:42,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-14 09:13:42,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-14 09:13:42,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-14 09:13:42,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-14 09:13:42,492 INFO L185 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-14 09:13:42,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerThread1of1ForFork0 ======== [2024-11-14 09:13:42,515 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@10401776, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 09:13:42,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 09:13:42,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 09:13:42,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 09:13:42,826 INFO L85 PathProgramCache]: Analyzing trace with hash -909036627, now seen corresponding path program 1 times [2024-11-14 09:13:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 09:13:42,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561657126] [2024-11-14 09:13:42,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 09:13:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 09:13:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 09:13:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:43,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 09:13:43,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561657126] [2024-11-14 09:13:43,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561657126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 09:13:43,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 09:13:43,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 09:13:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303604310] [2024-11-14 09:13:43,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 09:13:43,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 09:13:43,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 09:13:43,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 09:13:43,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 09:13:43,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:43,287 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 09:13:43,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-14 09:13:43,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:43,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:43,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 09:13:43,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 09:13:43,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 09:13:43,329 INFO L85 PathProgramCache]: Analyzing trace with hash 969473317, now seen corresponding path program 1 times [2024-11-14 09:13:43,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 09:13:43,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396202353] [2024-11-14 09:13:43,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 09:13:43,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 09:13:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 09:13:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:43,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 09:13:43,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396202353] [2024-11-14 09:13:43,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396202353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 09:13:43,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 09:13:43,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 09:13:43,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86253046] [2024-11-14 09:13:43,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 09:13:43,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 09:13:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 09:13:43,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 09:13:43,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 09:13:43,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:43,518 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 09:13:43,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-14 09:13:43,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:43,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:43,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 09:13:43,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 09:13:43,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 09:13:43,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1439229813, now seen corresponding path program 2 times [2024-11-14 09:13:43,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 09:13:43,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565525725] [2024-11-14 09:13:43,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 09:13:43,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 09:13:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 09:13:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:43,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 09:13:43,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565525725] [2024-11-14 09:13:43,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565525725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 09:13:43,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 09:13:43,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 09:13:43,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656037476] [2024-11-14 09:13:43,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 09:13:43,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 09:13:43,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 09:13:43,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 09:13:43,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 09:13:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:43,834 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 09:13:43,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-14 09:13:43,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:43,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:43,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:43,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 09:13:43,961 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 09:13:43,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 09:13:43,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1409646324, now seen corresponding path program 1 times [2024-11-14 09:13:43,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 09:13:43,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180111357] [2024-11-14 09:13:43,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 09:13:43,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 09:13:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 09:13:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:44,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 09:13:44,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180111357] [2024-11-14 09:13:44,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180111357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 09:13:44,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 09:13:44,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 09:13:44,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994284343] [2024-11-14 09:13:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 09:13:44,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 09:13:44,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 09:13:44,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 09:13:44,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 09:13:44,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:44,115 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 09:13:44,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-14 09:13:44,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:44,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:44,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:44,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 09:13:44,306 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 09:13:44,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 09:13:44,307 INFO L85 PathProgramCache]: Analyzing trace with hash 945285186, now seen corresponding path program 1 times [2024-11-14 09:13:44,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 09:13:44,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040255778] [2024-11-14 09:13:44,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 09:13:44,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 09:13:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 09:13:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:44,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 09:13:44,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040255778] [2024-11-14 09:13:44,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040255778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 09:13:44,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 09:13:44,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 09:13:44,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555851335] [2024-11-14 09:13:44,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 09:13:44,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 09:13:44,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 09:13:44,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 09:13:44,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 09:13:44,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:44,547 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 09:13:44,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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) [2024-11-14 09:13:44,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:44,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:44,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:44,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 09:13:44,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 09:13:44,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 09:13:44,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 09:13:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1058228602, now seen corresponding path program 1 times [2024-11-14 09:13:44,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 09:13:44,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167349106] [2024-11-14 09:13:44,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 09:13:44,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 09:13:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 09:13:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:45,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 09:13:45,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167349106] [2024-11-14 09:13:45,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167349106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 09:13:45,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154398226] [2024-11-14 09:13:45,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 09:13:45,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 09:13:45,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-14 09:13:45,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 09:13:45,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 09:13:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 09:13:45,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 09:13:45,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 09:13:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:45,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 09:13:45,778 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 09:13:45,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154398226] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 09:13:45,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 09:13:45,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2024-11-14 09:13:45,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400404079] [2024-11-14 09:13:45,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 09:13:45,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 09:13:45,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 09:13:45,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 09:13:45,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-14 09:13:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:45,781 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 09:13:45,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 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) [2024-11-14 09:13:45,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:45,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:45,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:45,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:45,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-14 09:13:45,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 09:13:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 09:13:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 09:13:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 09:13:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 09:13:46,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 09:13:46,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 09:13:46,256 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 09:13:46,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-14 09:13:46,340 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.IPredicate.getFormula()" because "" is null at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation$ConditionGeneratorIndependence.getCommutativityCondition(SemanticIndependenceRelation.java:415) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation$ConditionGeneratorIndependence.getCommutativityCondition(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.TermTransferringIndependenceRelation$SymbolicTransferringIndependence.getCommutativityCondition(TermTransferringIndependenceRelation.java:128) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.TermTransferringIndependenceRelation$SymbolicTransferringIndependence.getCommutativityCondition(TermTransferringIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.ProtectedIndependenceRelation$SymbolicProtectedIndependence.getCommutativityCondition(ProtectedIndependenceRelation.java:144) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.UnionIndependenceRelation$SymbolicUnionIndependence.lambda$1(UnionIndependenceRelation.java:143) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1685) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.findAny(ReferencePipeline.java:652) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceBuilder$ActionIndependenceBuilder.lambda$0(IndependenceBuilder.java:399) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.UnionIndependenceRelation$SymbolicUnionIndependence.getCommutativityCondition(UnionIndependenceRelation.java:142) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.ConditionTransformingIndependenceRelation$SymbolicConditionTransformingIndependence.getCommutativityCondition(ConditionTransformingIndependenceRelation.java:152) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.DisjunctiveConditionalIndependenceRelation$SymbolicDisjunctiveIndependence.getSingleCommutativityCondition(DisjunctiveConditionalIndependenceRelation.java:176) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.DisjunctiveConditionalIndependenceRelation$SymbolicDisjunctiveIndependence.getCommutativityCondition(DisjunctiveConditionalIndependenceRelation.java:161) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.DisjunctiveConditionalIndependenceRelation$SymbolicDisjunctiveIndependence.getCommutativityCondition(DisjunctiveConditionalIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.ConditionTransformingIndependenceRelation$SymbolicConditionTransformingIndependence.getCommutativityCondition(ConditionTransformingIndependenceRelation.java:152) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.ThreadSeparatingIndependenceRelation$SymbolicThreadSeparatingIndependence.getCommutativityCondition(ThreadSeparatingIndependenceRelation.java:109) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.ThreadSeparatingIndependenceRelation$SymbolicThreadSeparatingIndependence.getCommutativityCondition(ThreadSeparatingIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.conditional.ConditionalCommutativityChecker.generateRawCondition(ConditionalCommutativityChecker.java:214) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.conditional.ConditionalCommutativityChecker.generateCondition(ConditionalCommutativityChecker.java:193) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.conditional.ConditionalCommutativityChecker.checkConditionalCommutativityInternal(ConditionalCommutativityChecker.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.conditional.ConditionalCommutativityChecker.checkConditionalCommutativity(ConditionalCommutativityChecker.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.ConditionalCommutativityCounterexampleChecker.getCommutativityProof(ConditionalCommutativityCounterexampleChecker.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 09:13:46,346 INFO L158 Benchmark]: Toolchain (without parser) took 4985.44ms. Allocated memory was 83.9MB in the beginning and 130.0MB in the end (delta: 46.1MB). Free memory was 55.1MB in the beginning and 69.4MB in the end (delta: -14.3MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2024-11-14 09:13:46,346 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-14 09:13:46,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.91ms. Allocated memory is still 83.9MB. Free memory was 55.1MB in the beginning and 34.9MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-14 09:13:46,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.71ms. Allocated memory is still 83.9MB. Free memory was 34.9MB in the beginning and 32.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-14 09:13:46,347 INFO L158 Benchmark]: Boogie Preprocessor took 25.78ms. Allocated memory is still 83.9MB. Free memory was 32.9MB in the beginning and 31.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-14 09:13:46,347 INFO L158 Benchmark]: RCFGBuilder took 461.54ms. Allocated memory is still 83.9MB. Free memory was 31.8MB in the beginning and 54.5MB in the end (delta: -22.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2024-11-14 09:13:46,348 INFO L158 Benchmark]: TraceAbstraction took 4072.64ms. Allocated memory was 83.9MB in the beginning and 130.0MB in the end (delta: 46.1MB). Free memory was 53.7MB in the beginning and 69.4MB in the end (delta: -15.6MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2024-11-14 09:13:46,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 386.91ms. Allocated memory is still 83.9MB. Free memory was 55.1MB in the beginning and 34.9MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.71ms. Allocated memory is still 83.9MB. Free memory was 34.9MB in the beginning and 32.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.78ms. Allocated memory is still 83.9MB. Free memory was 32.9MB in the beginning and 31.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 461.54ms. Allocated memory is still 83.9MB. Free memory was 31.8MB in the beginning and 54.5MB in the end (delta: -22.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4072.64ms. Allocated memory was 83.9MB in the beginning and 130.0MB in the end (delta: 46.1MB). Free memory was 53.7MB in the beginning and 69.4MB in the end (delta: -15.6MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.IPredicate.getFormula()" because "" is null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.IPredicate.getFormula()" because "" is null: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation$ConditionGeneratorIndependence.getCommutativityCondition(SemanticIndependenceRelation.java:415) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-14 09:13:46,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...