/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-04 23:05:51,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-04 23:05:51,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-04 23:05:51,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-04 23:05:51,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-04 23:05:51,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-04 23:05:51,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-04 23:05:51,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-04 23:05:51,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-04 23:05:51,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-04 23:05:51,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-04 23:05:51,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-04 23:05:51,739 INFO L153 SettingsManager]: * Use SBE=true [2024-05-04 23:05:51,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-04 23:05:51,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-04 23:05:51,740 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-04 23:05:51,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-04 23:05:51,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-04 23:05:51,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-04 23:05:51,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-04 23:05:51,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-04 23:05:51,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-04 23:05:51,742 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-04 23:05:51,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-04 23:05:51,742 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-04 23:05:51,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-04 23:05:51,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-04 23:05:51,743 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-04 23:05:51,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-04 23:05:51,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-04 23:05:51,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-04 23:05:51,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-04 23:05:51,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-04 23:05:51,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-04 23:05:51,745 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-04 23:05:51,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-04 23:05:51,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-04 23:05:51,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-04 23:05:51,746 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-04 23:05:51,746 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT [2024-05-04 23:05:51,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-04 23:05:51,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-04 23:05:51,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-04 23:05:51,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-04 23:05:51,990 INFO L274 PluginConnector]: CDTParser initialized [2024-05-04 23:05:51,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i [2024-05-04 23:05:53,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-04 23:05:53,421 INFO L384 CDTParser]: Found 1 translation units. [2024-05-04 23:05:53,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i [2024-05-04 23:05:53,442 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4f492cd7b/e931f7775dc0432a9c54e4be135903ac/FLAG2a3c8daf9 [2024-05-04 23:05:53,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4f492cd7b/e931f7775dc0432a9c54e4be135903ac [2024-05-04 23:05:53,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-04 23:05:53,456 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-04 23:05:53,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-04 23:05:53,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-04 23:05:53,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-04 23:05:53,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 11:05:53" (1/1) ... [2024-05-04 23:05:53,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4230fb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:53, skipping insertion in model container [2024-05-04 23:05:53,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 11:05:53" (1/1) ... [2024-05-04 23:05:53,520 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-04 23:05:53,923 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2024-05-04 23:05:53,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-04 23:05:53,974 INFO L202 MainTranslator]: Completed pre-run [2024-05-04 23:05:54,017 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2024-05-04 23:05:54,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-04 23:05:54,095 INFO L206 MainTranslator]: Completed translation [2024-05-04 23:05:54,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54 WrapperNode [2024-05-04 23:05:54,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-04 23:05:54,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-04 23:05:54,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-04 23:05:54,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-04 23:05:54,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,153 INFO L138 Inliner]: procedures = 272, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 229 [2024-05-04 23:05:54,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-04 23:05:54,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-04 23:05:54,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-04 23:05:54,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-04 23:05:54,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-04 23:05:54,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-04 23:05:54,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-04 23:05:54,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-04 23:05:54,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (1/1) ... [2024-05-04 23:05:54,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-04 23:05:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:05:54,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-04 23:05:54,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-04 23:05:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-04 23:05:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-04 23:05:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-04 23:05:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-04 23:05:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-04 23:05:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-04 23:05:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-04 23:05:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-04 23:05:54,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-04 23:05:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-04 23:05:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-04 23:05:54,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-04 23:05:54,276 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-04 23:05:54,387 INFO L241 CfgBuilder]: Building ICFG [2024-05-04 23:05:54,389 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-04 23:05:54,669 INFO L282 CfgBuilder]: Performing block encoding [2024-05-04 23:05:54,713 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-04 23:05:54,713 INFO L309 CfgBuilder]: Removed 22 assume(true) statements. [2024-05-04 23:05:54,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 11:05:54 BoogieIcfgContainer [2024-05-04 23:05:54,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-04 23:05:54,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-04 23:05:54,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-04 23:05:54,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-04 23:05:54,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 11:05:53" (1/3) ... [2024-05-04 23:05:54,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f3d265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 11:05:54, skipping insertion in model container [2024-05-04 23:05:54,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 11:05:54" (2/3) ... [2024-05-04 23:05:54,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f3d265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 11:05:54, skipping insertion in model container [2024-05-04 23:05:54,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 11:05:54" (3/3) ... [2024-05-04 23:05:54,727 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-05-04 23:05:54,734 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-04 23:05:54,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-04 23:05:54,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-04 23:05:54,744 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-04 23:05:54,816 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-04 23:05:54,866 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:05:54,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:05:54,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:05:54,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:05:54,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-04 23:05:54,910 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:05:54,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:54,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:05:54,936 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:05:54,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-05-04 23:05:54,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-04 23:05:54,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash -397601856, now seen corresponding path program 1 times [2024-05-04 23:05:54,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:54,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106444590] [2024-05-04 23:05:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:54,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 23:05:55,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:55,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106444590] [2024-05-04 23:05:55,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106444590] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:55,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:55,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:05:55,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204888367] [2024-05-04 23:05:55,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:55,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:05:55,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:55,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:05:55,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:05:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:55,329 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:55,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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) [2024-05-04 23:05:55,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:55,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-04 23:05:55,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-04 23:05:55,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:55,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1435033878, now seen corresponding path program 1 times [2024-05-04 23:05:55,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:55,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579410997] [2024-05-04 23:05:55,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:55,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:55,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:05:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:55,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:05:55,524 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:05:55,526 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-05-04 23:05:55,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-05-04 23:05:55,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-05-04 23:05:55,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-05-04 23:05:55,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-04 23:05:55,540 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1] [2024-05-04 23:05:55,542 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:05:55,542 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-05-04 23:05:55,578 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-04 23:05:55,588 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:05:55,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:05:55,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:05:55,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:05:55,640 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:05:55,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:55,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:05:55,641 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:05:55,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-04 23:05:55,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-05-04 23:05:55,668 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-04 23:05:55,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1273193204, now seen corresponding path program 1 times [2024-05-04 23:05:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:55,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602479866] [2024-05-04 23:05:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-04 23:05:55,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:55,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602479866] [2024-05-04 23:05:55,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602479866] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:55,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:55,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:05:55,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375864290] [2024-05-04 23:05:55,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:55,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:05:55,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:05:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:05:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:55,768 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:55,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-05-04 23:05:55,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:55,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-04 23:05:55,804 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-04 23:05:55,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:55,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1269026701, now seen corresponding path program 1 times [2024-05-04 23:05:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:55,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619269039] [2024-05-04 23:05:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 23:05:56,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:56,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619269039] [2024-05-04 23:05:56,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619269039] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:56,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:56,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:05:56,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864424300] [2024-05-04 23:05:56,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:56,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:05:56,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:56,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:05:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:05:56,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,092 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:56,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-05-04 23:05:56,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:56,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-04 23:05:56,165 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-04 23:05:56,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:56,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1555405273, now seen corresponding path program 1 times [2024-05-04 23:05:56,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:56,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620086535] [2024-05-04 23:05:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:56,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:05:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:56,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:05:56,217 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:05:56,217 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-05-04 23:05:56,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-05-04 23:05:56,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-05-04 23:05:56,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-05-04 23:05:56,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-05-04 23:05:56,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-04 23:05:56,219 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-05-04 23:05:56,219 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:05:56,219 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-05-04 23:05:56,254 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-05-04 23:05:56,263 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:05:56,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:05:56,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:05:56,270 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:05:56,274 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:05:56,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:56,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:05:56,275 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:05:56,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-05-04 23:05:56,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-05-04 23:05:56,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-05-04 23:05:56,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1340730554, now seen corresponding path program 1 times [2024-05-04 23:05:56,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:56,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592818221] [2024-05-04 23:05:56,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:56,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-04 23:05:56,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592818221] [2024-05-04 23:05:56,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592818221] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:56,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:56,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:05:56,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617253159] [2024-05-04 23:05:56,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:56,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:05:56,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:56,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:05:56,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:05:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,420 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:56,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2024-05-04 23:05:56,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-04 23:05:56,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-05-04 23:05:56,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:56,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2058213644, now seen corresponding path program 1 times [2024-05-04 23:05:56,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:56,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822526551] [2024-05-04 23:05:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:56,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-04 23:05:56,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:56,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822526551] [2024-05-04 23:05:56,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822526551] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:56,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:56,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:05:56,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843662450] [2024-05-04 23:05:56,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:56,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:05:56,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:05:56,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:05:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,723 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:56,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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) [2024-05-04 23:05:56,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:56,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:56,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-04 23:05:56,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-05-04 23:05:56,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:56,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1189505660, now seen corresponding path program 1 times [2024-05-04 23:05:56,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:56,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879553407] [2024-05-04 23:05:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:56,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-04 23:05:57,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:57,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879553407] [2024-05-04 23:05:57,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879553407] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:57,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:57,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:05:57,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547692587] [2024-05-04 23:05:57,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:57,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:05:57,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:57,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:05:57,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:05:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,172 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:57,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2024-05-04 23:05:57,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:57,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:05:57,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-05-04 23:05:57,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-05-04 23:05:57,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:57,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1357222077, now seen corresponding path program 1 times [2024-05-04 23:05:57,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:57,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190958239] [2024-05-04 23:05:57,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:57,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:57,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:05:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:57,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:05:57,334 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:05:57,334 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-05-04 23:05:57,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-05-04 23:05:57,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-05-04 23:05:57,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-05-04 23:05:57,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-05-04 23:05:57,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-05-04 23:05:57,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-05-04 23:05:57,339 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:05:57,339 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:05:57,339 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-05-04 23:05:57,386 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-05-04 23:05:57,390 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:05:57,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:05:57,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:05:57,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:05:57,402 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:05:57,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:57,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:05:57,403 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:05:57,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-05-04 23:05:57,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-05-04 23:05:57,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-04 23:05:57,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:57,422 INFO L85 PathProgramCache]: Analyzing trace with hash -669045910, now seen corresponding path program 1 times [2024-05-04 23:05:57,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:57,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298289218] [2024-05-04 23:05:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:57,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-05-04 23:05:57,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:57,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298289218] [2024-05-04 23:05:57,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298289218] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:57,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:57,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:05:57,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546867058] [2024-05-04 23:05:57,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:57,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:05:57,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:57,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:05:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:05:57,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,469 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:57,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2024-05-04 23:05:57,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-05-04 23:05:57,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-04 23:05:57,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:57,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1494892135, now seen corresponding path program 1 times [2024-05-04 23:05:57,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:57,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173531469] [2024-05-04 23:05:57,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:57,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:57,746 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-05-04 23:05:57,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:57,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173531469] [2024-05-04 23:05:57,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173531469] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:57,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:57,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:05:57,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198384651] [2024-05-04 23:05:57,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:57,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:05:57,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:57,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:05:57,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:05:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,789 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:57,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2024-05-04 23:05:57,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:57,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-05-04 23:05:57,893 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-04 23:05:57,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:57,894 INFO L85 PathProgramCache]: Analyzing trace with hash -893307883, now seen corresponding path program 1 times [2024-05-04 23:05:57,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:57,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960175942] [2024-05-04 23:05:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:57,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-05-04 23:05:58,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:58,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960175942] [2024-05-04 23:05:58,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960175942] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:58,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:58,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:05:58,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876988510] [2024-05-04 23:05:58,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:58,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:05:58,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:58,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:05:58,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:05:58,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,260 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:58,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-05-04 23:05:58,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:58,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:58,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:05:58,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-05-04 23:05:58,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-04 23:05:58,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1474824871, now seen corresponding path program 1 times [2024-05-04 23:05:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:58,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156678489] [2024-05-04 23:05:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:58,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:05:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:58,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:05:58,433 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:05:58,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-05-04 23:05:58,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-05-04 23:05:58,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-05-04 23:05:58,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-05-04 23:05:58,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-05-04 23:05:58,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-05-04 23:05:58,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-05-04 23:05:58,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-05-04 23:05:58,436 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:05:58,437 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:05:58,438 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-05-04 23:05:58,491 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-05-04 23:05:58,495 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:05:58,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:05:58,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:05:58,501 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:05:58,507 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:05:58,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:58,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:05:58,507 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:05:58,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-05-04 23:05:58,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-05-04 23:05:58,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-05-04 23:05:58,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:58,528 INFO L85 PathProgramCache]: Analyzing trace with hash 336060604, now seen corresponding path program 1 times [2024-05-04 23:05:58,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:58,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699898935] [2024-05-04 23:05:58,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:58,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-05-04 23:05:58,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:58,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699898935] [2024-05-04 23:05:58,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699898935] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:58,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:58,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:05:58,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21314086] [2024-05-04 23:05:58,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:58,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:05:58,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:58,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:05:58,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:05:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,599 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:58,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 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) [2024-05-04 23:05:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-05-04 23:05:58,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-05-04 23:05:58,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1575273190, now seen corresponding path program 1 times [2024-05-04 23:05:58,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:58,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109795811] [2024-05-04 23:05:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:58,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-05-04 23:05:58,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:58,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109795811] [2024-05-04 23:05:58,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109795811] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:58,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:58,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:05:58,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282649056] [2024-05-04 23:05:58,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:58,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:05:58,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:58,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:05:58,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:05:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,998 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:58,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2024-05-04 23:05:58,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:58,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:59,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-05-04 23:05:59,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-05-04 23:05:59,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:59,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1949675939, now seen corresponding path program 1 times [2024-05-04 23:05:59,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:59,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185523125] [2024-05-04 23:05:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:59,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:59,391 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-05-04 23:05:59,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:59,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185523125] [2024-05-04 23:05:59,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185523125] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:59,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:59,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:05:59,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550133469] [2024-05-04 23:05:59,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:59,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:05:59,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:59,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:05:59,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:05:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,429 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:59,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-05-04 23:05:59,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:59,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:05:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:05:59,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-05-04 23:05:59,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-05-04 23:05:59,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:59,546 INFO L85 PathProgramCache]: Analyzing trace with hash -238872708, now seen corresponding path program 1 times [2024-05-04 23:05:59,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:59,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014622512] [2024-05-04 23:05:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:59,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:59,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:05:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:05:59,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:05:59,611 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:05:59,611 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-05-04 23:05:59,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-05-04 23:05:59,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-05-04 23:05:59,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-05-04 23:05:59,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-05-04 23:05:59,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-05-04 23:05:59,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-05-04 23:05:59,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-05-04 23:05:59,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-05-04 23:05:59,614 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:05:59,614 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:05:59,614 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-05-04 23:05:59,676 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-05-04 23:05:59,681 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:05:59,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:05:59,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:05:59,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:05:59,689 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:05:59,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:59,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:05:59,690 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:05:59,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-05-04 23:05:59,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2024-05-04 23:05:59,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2024-05-04 23:05:59,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2123524400, now seen corresponding path program 1 times [2024-05-04 23:05:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:59,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935911630] [2024-05-04 23:05:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:05:59,764 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-05-04 23:05:59,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:05:59,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935911630] [2024-05-04 23:05:59,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935911630] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:05:59,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:05:59,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:05:59,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466138833] [2024-05-04 23:05:59,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:05:59,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:05:59,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:05:59,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:05:59,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:05:59,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,782 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:05:59,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2024-05-04 23:05:59,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:05:59,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-05-04 23:05:59,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2024-05-04 23:05:59,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:05:59,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1249696252, now seen corresponding path program 1 times [2024-05-04 23:05:59,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:05:59,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965605201] [2024-05-04 23:05:59,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:05:59,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:05:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-05-04 23:06:00,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:00,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965605201] [2024-05-04 23:06:00,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965605201] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:00,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:00,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:00,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622790106] [2024-05-04 23:06:00,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:00,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:00,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:00,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:00,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:00,387 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:00,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2024-05-04 23:06:00,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:00,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:00,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-05-04 23:06:00,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2024-05-04 23:06:00,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:00,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1708145402, now seen corresponding path program 1 times [2024-05-04 23:06:00,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:00,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81239943] [2024-05-04 23:06:00,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:00,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-05-04 23:06:00,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:00,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81239943] [2024-05-04 23:06:00,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81239943] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962479802] [2024-05-04 23:06:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:00,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:00,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:00,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:00,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:00,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:00,889 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:00,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-05-04 23:06:00,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:00,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:00,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:01,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-05-04 23:06:01,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2024-05-04 23:06:01,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:01,006 INFO L85 PathProgramCache]: Analyzing trace with hash -944599356, now seen corresponding path program 1 times [2024-05-04 23:06:01,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:01,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099148221] [2024-05-04 23:06:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:01,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:01,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:01,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:01,093 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:01,093 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-05-04 23:06:01,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-05-04 23:06:01,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-05-04 23:06:01,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2024-05-04 23:06:01,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2024-05-04 23:06:01,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-05-04 23:06:01,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-05-04 23:06:01,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-05-04 23:06:01,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-05-04 23:06:01,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-05-04 23:06:01,095 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:01,095 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:01,095 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-05-04 23:06:01,150 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-05-04 23:06:01,154 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:01,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:01,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:01,160 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:01,168 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:01,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:01,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:01,169 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:01,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-05-04 23:06:01,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-05-04 23:06:01,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2024-05-04 23:06:01,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:01,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1728776774, now seen corresponding path program 1 times [2024-05-04 23:06:01,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:01,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007316241] [2024-05-04 23:06:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:01,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-05-04 23:06:01,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:01,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007316241] [2024-05-04 23:06:01,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007316241] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:01,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:01,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:01,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228273364] [2024-05-04 23:06:01,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:01,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:01,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:01,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:01,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:01,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:01,254 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:01,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 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) [2024-05-04 23:06:01,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:01,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-05-04 23:06:01,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2024-05-04 23:06:01,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1392941480, now seen corresponding path program 1 times [2024-05-04 23:06:01,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:01,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618997134] [2024-05-04 23:06:01,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:01,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:01,715 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-05-04 23:06:01,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:01,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618997134] [2024-05-04 23:06:01,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618997134] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:01,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:01,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:01,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569333194] [2024-05-04 23:06:01,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:01,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:01,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:01,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:01,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:01,784 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:01,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2024-05-04 23:06:01,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:01,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:02,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:02,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-05-04 23:06:02,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2024-05-04 23:06:02,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:02,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1579610724, now seen corresponding path program 1 times [2024-05-04 23:06:02,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:02,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174633463] [2024-05-04 23:06:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:02,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:02,317 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-05-04 23:06:02,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:02,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174633463] [2024-05-04 23:06:02,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174633463] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:02,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:02,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:02,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081268161] [2024-05-04 23:06:02,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:02,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:02,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:02,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:02,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:02,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:02,371 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:02,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 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) [2024-05-04 23:06:02,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:02,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:02,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:02,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-05-04 23:06:02,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2024-05-04 23:06:02,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2140071098, now seen corresponding path program 1 times [2024-05-04 23:06:02,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:02,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604545316] [2024-05-04 23:06:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:02,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:02,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:02,660 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:02,660 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-05-04 23:06:02,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 10 remaining) [2024-05-04 23:06:02,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 10 remaining) [2024-05-04 23:06:02,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 10 remaining) [2024-05-04 23:06:02,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 10 remaining) [2024-05-04 23:06:02,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 10 remaining) [2024-05-04 23:06:02,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 10 remaining) [2024-05-04 23:06:02,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 10 remaining) [2024-05-04 23:06:02,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 10 remaining) [2024-05-04 23:06:02,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 10 remaining) [2024-05-04 23:06:02,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-05-04 23:06:02,663 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:02,663 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:02,663 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-05-04 23:06:02,730 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-05-04 23:06:02,736 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:02,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:02,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:02,739 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:02,746 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:02,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:02,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:02,747 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:02,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-05-04 23:06:02,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-05-04 23:06:02,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-05-04 23:06:02,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:02,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1785388350, now seen corresponding path program 1 times [2024-05-04 23:06:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:02,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91313449] [2024-05-04 23:06:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:02,829 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-05-04 23:06:02,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:02,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91313449] [2024-05-04 23:06:02,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91313449] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:02,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:02,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:02,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139608164] [2024-05-04 23:06:02,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:02,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:02,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:02,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:02,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:02,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:02,846 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:02,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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) [2024-05-04 23:06:02,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:03,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-05-04 23:06:03,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-05-04 23:06:03,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1078503609, now seen corresponding path program 1 times [2024-05-04 23:06:03,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:03,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303747239] [2024-05-04 23:06:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:03,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:03,405 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-05-04 23:06:03,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:03,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303747239] [2024-05-04 23:06:03,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303747239] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:03,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:03,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:03,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828575947] [2024-05-04 23:06:03,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:03,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:03,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:03,491 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:03,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2024-05-04 23:06:03,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:03,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:03,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-05-04 23:06:03,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-05-04 23:06:03,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:03,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1183684098, now seen corresponding path program 1 times [2024-05-04 23:06:03,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:03,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932997954] [2024-05-04 23:06:03,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:03,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-05-04 23:06:04,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:04,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932997954] [2024-05-04 23:06:04,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932997954] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:04,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:04,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:04,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577625339] [2024-05-04 23:06:04,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:04,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:04,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:04,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:04,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:04,195 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:04,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.5) internal successors, (207), 6 states have internal predecessors, (207), 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) [2024-05-04 23:06:04,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:04,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:04,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:04,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-05-04 23:06:04,412 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-05-04 23:06:04,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:04,412 INFO L85 PathProgramCache]: Analyzing trace with hash 766379565, now seen corresponding path program 1 times [2024-05-04 23:06:04,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:04,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173872810] [2024-05-04 23:06:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:04,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:04,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:04,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:04,520 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:04,520 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-05-04 23:06:04,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-05-04 23:06:04,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-05-04 23:06:04,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2024-05-04 23:06:04,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2024-05-04 23:06:04,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-05-04 23:06:04,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-05-04 23:06:04,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-05-04 23:06:04,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-05-04 23:06:04,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-05-04 23:06:04,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-05-04 23:06:04,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-05-04 23:06:04,522 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:04,523 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:04,523 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-05-04 23:06:04,586 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-05-04 23:06:04,591 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:04,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:04,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:04,596 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:04,602 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:04,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:04,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:04,603 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:04,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-05-04 23:06:04,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2024-05-04 23:06:04,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-05-04 23:06:04,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:04,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1258103976, now seen corresponding path program 1 times [2024-05-04 23:06:04,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:04,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654383260] [2024-05-04 23:06:04,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:04,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-05-04 23:06:04,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:04,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654383260] [2024-05-04 23:06:04,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654383260] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:04,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:04,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:04,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944937553] [2024-05-04 23:06:04,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:04,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:04,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:04,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:04,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:04,701 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:04,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2024-05-04 23:06:04,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:05,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:05,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-05-04 23:06:05,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-05-04 23:06:05,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:05,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1922979782, now seen corresponding path program 1 times [2024-05-04 23:06:05,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:05,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294924978] [2024-05-04 23:06:05,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:05,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-05-04 23:06:05,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:05,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294924978] [2024-05-04 23:06:05,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294924978] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:05,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:05,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934255024] [2024-05-04 23:06:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:05,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:05,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:05,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:05,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:05,486 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:05,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2024-05-04 23:06:05,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:05,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:05,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:05,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-05-04 23:06:05,872 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-05-04 23:06:05,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 728200175, now seen corresponding path program 1 times [2024-05-04 23:06:05,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:05,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745879113] [2024-05-04 23:06:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-05-04 23:06:06,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:06,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745879113] [2024-05-04 23:06:06,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745879113] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:06,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:06,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:06,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873645478] [2024-05-04 23:06:06,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:06,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:06,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:06,362 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:06,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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) [2024-05-04 23:06:06,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:06,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:06,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:06,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:06,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:06,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:06,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-05-04 23:06:06,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-05-04 23:06:06,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:06,602 INFO L85 PathProgramCache]: Analyzing trace with hash -135436715, now seen corresponding path program 1 times [2024-05-04 23:06:06,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:06,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350249292] [2024-05-04 23:06:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:06,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:06,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:06,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:06,727 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:06,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 12 remaining) [2024-05-04 23:06:06,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2024-05-04 23:06:06,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2024-05-04 23:06:06,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2024-05-04 23:06:06,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 12 remaining) [2024-05-04 23:06:06,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-05-04 23:06:06,730 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:06,731 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:06,731 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-05-04 23:06:06,797 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-05-04 23:06:06,803 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:06,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:06,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:06,806 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:06,809 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:06,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:06,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:06,810 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:06,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-05-04 23:06:06,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2024-05-04 23:06:06,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2024-05-04 23:06:06,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash 686404788, now seen corresponding path program 1 times [2024-05-04 23:06:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:06,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538050220] [2024-05-04 23:06:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:06,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-05-04 23:06:06,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:06,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538050220] [2024-05-04 23:06:06,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538050220] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:06,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:06,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:06,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260957349] [2024-05-04 23:06:06,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:06,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:06,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:06,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:06,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:06,973 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:06,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2024-05-04 23:06:06,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:07,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:07,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-05-04 23:06:07,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2024-05-04 23:06:07,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:07,324 INFO L85 PathProgramCache]: Analyzing trace with hash -656649070, now seen corresponding path program 1 times [2024-05-04 23:06:07,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:07,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375059934] [2024-05-04 23:06:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:07,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-05-04 23:06:07,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:07,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375059934] [2024-05-04 23:06:07,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375059934] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:07,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:07,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:07,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448306921] [2024-05-04 23:06:07,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:07,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:07,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:07,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:07,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:07,684 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:07,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2024-05-04 23:06:07,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:07,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:08,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:08,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-05-04 23:06:08,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2024-05-04 23:06:08,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash 260928695, now seen corresponding path program 1 times [2024-05-04 23:06:08,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:08,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425062258] [2024-05-04 23:06:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:08,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-05-04 23:06:08,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:08,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425062258] [2024-05-04 23:06:08,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425062258] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:08,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:08,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:08,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188457246] [2024-05-04 23:06:08,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:08,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:08,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:08,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:08,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:08,648 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:08,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 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) [2024-05-04 23:06:08,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:08,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:08,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:08,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-05-04 23:06:08,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2024-05-04 23:06:08,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:08,881 INFO L85 PathProgramCache]: Analyzing trace with hash -755432790, now seen corresponding path program 1 times [2024-05-04 23:06:08,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:08,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659641000] [2024-05-04 23:06:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:08,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:08,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:09,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:09,020 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:09,022 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-05-04 23:06:09,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2024-05-04 23:06:09,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2024-05-04 23:06:09,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 13 remaining) [2024-05-04 23:06:09,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 13 remaining) [2024-05-04 23:06:09,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2024-05-04 23:06:09,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2024-05-04 23:06:09,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2024-05-04 23:06:09,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2024-05-04 23:06:09,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2024-05-04 23:06:09,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2024-05-04 23:06:09,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2024-05-04 23:06:09,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2024-05-04 23:06:09,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-05-04 23:06:09,026 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:09,026 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:09,026 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-05-04 23:06:09,102 INFO L144 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2024-05-04 23:06:09,108 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:09,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:09,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:09,111 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:09,117 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:09,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:09,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:09,118 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:09,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-05-04 23:06:09,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2024-05-04 23:06:09,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-05-04 23:06:09,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1126624014, now seen corresponding path program 1 times [2024-05-04 23:06:09,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:09,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944807424] [2024-05-04 23:06:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:09,214 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2024-05-04 23:06:09,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:09,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944807424] [2024-05-04 23:06:09,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944807424] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:09,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:09,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:09,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724711932] [2024-05-04 23:06:09,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:09,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:09,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:09,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:09,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:09,281 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:09,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 86.0) internal successors, (172), 2 states have internal predecessors, (172), 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) [2024-05-04 23:06:09,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:09,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-05-04 23:06:09,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-05-04 23:06:09,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:09,688 INFO L85 PathProgramCache]: Analyzing trace with hash 708073825, now seen corresponding path program 1 times [2024-05-04 23:06:09,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:09,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142543025] [2024-05-04 23:06:09,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:09,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-05-04 23:06:09,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:09,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142543025] [2024-05-04 23:06:09,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142543025] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:09,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:09,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:09,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709584678] [2024-05-04 23:06:09,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:09,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:09,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:10,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:10,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:10,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:10,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2024-05-04 23:06:10,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:10,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:10,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-05-04 23:06:10,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-05-04 23:06:10,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:10,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1356709720, now seen corresponding path program 1 times [2024-05-04 23:06:10,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:10,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601001979] [2024-05-04 23:06:10,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:10,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-05-04 23:06:11,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:11,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601001979] [2024-05-04 23:06:11,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601001979] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:11,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253998169] [2024-05-04 23:06:11,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:11,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:11,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:11,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:11,371 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:11,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 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) [2024-05-04 23:06:11,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:11,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:11,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:11,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:11,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-05-04 23:06:11,661 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-05-04 23:06:11,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash 782512611, now seen corresponding path program 1 times [2024-05-04 23:06:11,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:11,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449803196] [2024-05-04 23:06:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:11,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:11,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:11,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:11,819 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:11,819 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-05-04 23:06:11,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 14 remaining) [2024-05-04 23:06:11,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 14 remaining) [2024-05-04 23:06:11,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 14 remaining) [2024-05-04 23:06:11,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 14 remaining) [2024-05-04 23:06:11,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 14 remaining) [2024-05-04 23:06:11,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 14 remaining) [2024-05-04 23:06:11,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 14 remaining) [2024-05-04 23:06:11,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 14 remaining) [2024-05-04 23:06:11,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 14 remaining) [2024-05-04 23:06:11,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 14 remaining) [2024-05-04 23:06:11,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 14 remaining) [2024-05-04 23:06:11,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 14 remaining) [2024-05-04 23:06:11,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 14 remaining) [2024-05-04 23:06:11,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-05-04 23:06:11,825 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:11,825 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:11,825 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-05-04 23:06:11,898 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-05-04 23:06:11,906 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:11,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:11,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:11,909 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:11,912 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:11,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:11,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:11,913 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:11,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-05-04 23:06:11,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2024-05-04 23:06:11,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2024-05-04 23:06:11,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:11,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1439552562, now seen corresponding path program 1 times [2024-05-04 23:06:11,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:11,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839061437] [2024-05-04 23:06:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:11,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2024-05-04 23:06:12,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839061437] [2024-05-04 23:06:12,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839061437] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:12,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:12,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173149181] [2024-05-04 23:06:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:12,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:12,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:12,057 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:12,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2024-05-04 23:06:12,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:12,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:12,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-05-04 23:06:12,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2024-05-04 23:06:12,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:12,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1183973713, now seen corresponding path program 1 times [2024-05-04 23:06:12,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:12,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370912982] [2024-05-04 23:06:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:12,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-05-04 23:06:12,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:12,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370912982] [2024-05-04 23:06:12,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370912982] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:12,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:12,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314172593] [2024-05-04 23:06:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:12,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:12,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:12,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:12,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:12,984 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:12,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2024-05-04 23:06:12,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:12,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:13,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-05-04 23:06:13,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2024-05-04 23:06:13,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:13,634 INFO L85 PathProgramCache]: Analyzing trace with hash 163927402, now seen corresponding path program 1 times [2024-05-04 23:06:13,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:13,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871636536] [2024-05-04 23:06:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:13,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:14,024 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2024-05-04 23:06:14,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:14,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871636536] [2024-05-04 23:06:14,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871636536] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:14,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:14,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:14,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750029526] [2024-05-04 23:06:14,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:14,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:14,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:14,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:14,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:14,284 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:14,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 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) [2024-05-04 23:06:14,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:14,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:14,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:14,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-05-04 23:06:14,652 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2024-05-04 23:06:14,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1968899787, now seen corresponding path program 1 times [2024-05-04 23:06:14,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:14,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904708461] [2024-05-04 23:06:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:14,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:14,699 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:14,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:14,818 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:14,818 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 15 remaining) [2024-05-04 23:06:14,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 15 remaining) [2024-05-04 23:06:14,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 15 remaining) [2024-05-04 23:06:14,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 15 remaining) [2024-05-04 23:06:14,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 15 remaining) [2024-05-04 23:06:14,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 15 remaining) [2024-05-04 23:06:14,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-05-04 23:06:14,821 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:14,821 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:14,821 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-05-04 23:06:14,880 INFO L144 ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions. [2024-05-04 23:06:14,886 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:14,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:14,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:14,892 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:14,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2024-05-04 23:06:14,901 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:14,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:14,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:14,902 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:14,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-05-04 23:06:14,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-05-04 23:06:14,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:14,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1411949204, now seen corresponding path program 1 times [2024-05-04 23:06:14,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:14,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793138137] [2024-05-04 23:06:14,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:14,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2024-05-04 23:06:15,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793138137] [2024-05-04 23:06:15,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793138137] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:15,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:15,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:15,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507916988] [2024-05-04 23:06:15,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:15,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:15,026 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:15,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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) [2024-05-04 23:06:15,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:15,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-05-04 23:06:15,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-05-04 23:06:15,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:15,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1684281959, now seen corresponding path program 1 times [2024-05-04 23:06:15,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:15,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436718430] [2024-05-04 23:06:15,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:15,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2024-05-04 23:06:15,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:15,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436718430] [2024-05-04 23:06:15,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436718430] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:15,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:15,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:15,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343458903] [2024-05-04 23:06:15,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:15,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:15,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:16,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:16,008 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:16,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-05-04 23:06:16,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:16,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:16,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:16,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:16,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-05-04 23:06:16,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-05-04 23:06:16,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash 573085556, now seen corresponding path program 1 times [2024-05-04 23:06:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:16,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134097944] [2024-05-04 23:06:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:16,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-05-04 23:06:17,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:17,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134097944] [2024-05-04 23:06:17,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134097944] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:17,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:17,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:17,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767106131] [2024-05-04 23:06:17,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:17,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:17,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:17,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:17,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:17,393 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:17,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2024-05-04 23:06:17,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:17,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:17,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:17,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-05-04 23:06:17,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-05-04 23:06:17,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:17,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1813082625, now seen corresponding path program 1 times [2024-05-04 23:06:17,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:17,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084483302] [2024-05-04 23:06:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:17,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:17,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:17,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:17,994 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:17,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-05-04 23:06:17,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2024-05-04 23:06:17,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2024-05-04 23:06:17,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2024-05-04 23:06:17,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2024-05-04 23:06:17,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2024-05-04 23:06:17,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2024-05-04 23:06:17,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2024-05-04 23:06:17,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2024-05-04 23:06:17,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-05-04 23:06:17,999 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:18,000 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:18,000 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-05-04 23:06:18,075 INFO L144 ThreadInstanceAdder]: Constructed 14 joinOtherThreadTransitions. [2024-05-04 23:06:18,086 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:18,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:18,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:18,092 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:18,099 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:18,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:18,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:18,100 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:18,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-05-04 23:06:18,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2024-05-04 23:06:18,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-05-04 23:06:18,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1403933624, now seen corresponding path program 1 times [2024-05-04 23:06:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:18,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216507779] [2024-05-04 23:06:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:18,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:18,247 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2024-05-04 23:06:18,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:18,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216507779] [2024-05-04 23:06:18,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216507779] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:18,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:18,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:18,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952594486] [2024-05-04 23:06:18,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:18,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:18,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:18,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:18,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:18,271 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:18,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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) [2024-05-04 23:06:18,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:18,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-05-04 23:06:18,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-05-04 23:06:18,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:18,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1840102124, now seen corresponding path program 1 times [2024-05-04 23:06:18,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:18,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180248724] [2024-05-04 23:06:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:18,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-05-04 23:06:19,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:19,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180248724] [2024-05-04 23:06:19,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180248724] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:19,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:19,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:19,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118891541] [2024-05-04 23:06:19,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:19,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:19,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:19,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:19,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:19,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:19,579 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:19,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2024-05-04 23:06:19,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:19,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:20,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:20,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:20,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-05-04 23:06:20,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-05-04 23:06:20,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1490720619, now seen corresponding path program 1 times [2024-05-04 23:06:20,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:20,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795023594] [2024-05-04 23:06:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:20,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-05-04 23:06:21,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795023594] [2024-05-04 23:06:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795023594] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:21,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:21,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:21,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18497786] [2024-05-04 23:06:21,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:21,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:21,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:21,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:21,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:21,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:21,324 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:21,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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) [2024-05-04 23:06:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:21,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:21,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:21,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-05-04 23:06:21,684 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-05-04 23:06:21,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:21,685 INFO L85 PathProgramCache]: Analyzing trace with hash -74990779, now seen corresponding path program 1 times [2024-05-04 23:06:21,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:21,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641576277] [2024-05-04 23:06:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:21,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:21,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:21,881 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:21,881 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-05-04 23:06:21,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 17 remaining) [2024-05-04 23:06:21,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 17 remaining) [2024-05-04 23:06:21,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 17 remaining) [2024-05-04 23:06:21,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 17 remaining) [2024-05-04 23:06:21,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 17 remaining) [2024-05-04 23:06:21,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 17 remaining) [2024-05-04 23:06:21,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 17 remaining) [2024-05-04 23:06:21,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-05-04 23:06:21,884 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:21,884 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:21,884 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-05-04 23:06:21,960 INFO L144 ThreadInstanceAdder]: Constructed 15 joinOtherThreadTransitions. [2024-05-04 23:06:21,967 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:21,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:21,970 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:21,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2024-05-04 23:06:21,976 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:21,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:21,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:21,977 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:21,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-05-04 23:06:22,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-05-04 23:06:22,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2117477566, now seen corresponding path program 1 times [2024-05-04 23:06:22,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:22,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927867531] [2024-05-04 23:06:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:22,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-05-04 23:06:22,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:22,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927867531] [2024-05-04 23:06:22,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927867531] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:22,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:22,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:22,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56621414] [2024-05-04 23:06:22,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:22,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:22,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:22,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:22,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:22,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:22,251 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:22,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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) [2024-05-04 23:06:22,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:22,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-05-04 23:06:22,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-05-04 23:06:22,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:22,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2021535096, now seen corresponding path program 1 times [2024-05-04 23:06:22,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:22,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245860559] [2024-05-04 23:06:22,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:22,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2024-05-04 23:06:23,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:23,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245860559] [2024-05-04 23:06:23,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245860559] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:23,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:23,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:23,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318618893] [2024-05-04 23:06:23,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:23,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:23,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:23,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:23,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:23,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:23,263 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:23,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) [2024-05-04 23:06:23,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:23,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:24,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-05-04 23:06:24,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-05-04 23:06:24,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:24,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1693637226, now seen corresponding path program 1 times [2024-05-04 23:06:24,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:24,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964518703] [2024-05-04 23:06:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:24,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:24,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2024-05-04 23:06:24,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:24,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964518703] [2024-05-04 23:06:24,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964518703] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:24,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:24,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:24,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696878989] [2024-05-04 23:06:24,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:24,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:24,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:25,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:25,056 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:25,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 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) [2024-05-04 23:06:25,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:25,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:25,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:25,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:25,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:25,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:25,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-05-04 23:06:25,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-05-04 23:06:25,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1806404731, now seen corresponding path program 1 times [2024-05-04 23:06:25,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:25,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129962557] [2024-05-04 23:06:25,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:25,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:25,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:25,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:25,686 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:25,686 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-05-04 23:06:25,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 18 remaining) [2024-05-04 23:06:25,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 18 remaining) [2024-05-04 23:06:25,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 18 remaining) [2024-05-04 23:06:25,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 18 remaining) [2024-05-04 23:06:25,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 18 remaining) [2024-05-04 23:06:25,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 18 remaining) [2024-05-04 23:06:25,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 18 remaining) [2024-05-04 23:06:25,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 18 remaining) [2024-05-04 23:06:25,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-05-04 23:06:25,689 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:25,689 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:25,689 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-05-04 23:06:25,757 INFO L144 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-05-04 23:06:25,764 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:25,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:25,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:25,772 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:25,781 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:25,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:25,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:25,782 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:25,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-05-04 23:06:25,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (17)] Waiting until timeout for monitored process [2024-05-04 23:06:25,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2024-05-04 23:06:25,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:25,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1383223622, now seen corresponding path program 1 times [2024-05-04 23:06:25,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:25,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464474470] [2024-05-04 23:06:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:25,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2024-05-04 23:06:25,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:25,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464474470] [2024-05-04 23:06:25,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464474470] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:25,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:25,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:25,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348437786] [2024-05-04 23:06:25,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:25,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:25,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:25,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:25,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:25,953 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:25,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 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) [2024-05-04 23:06:25,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:26,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:26,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-05-04 23:06:26,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2024-05-04 23:06:26,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1927975960, now seen corresponding path program 1 times [2024-05-04 23:06:26,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:26,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353502613] [2024-05-04 23:06:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:26,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2024-05-04 23:06:27,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:27,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353502613] [2024-05-04 23:06:27,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353502613] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:27,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:27,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:27,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353690775] [2024-05-04 23:06:27,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:27,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:27,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:27,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:27,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:27,387 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:27,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2024-05-04 23:06:27,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:27,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:28,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:28,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-05-04 23:06:28,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2024-05-04 23:06:28,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:28,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1119438191, now seen corresponding path program 1 times [2024-05-04 23:06:28,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:28,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500081239] [2024-05-04 23:06:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:28,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:28,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2024-05-04 23:06:28,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:28,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500081239] [2024-05-04 23:06:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500081239] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:28,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:28,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:28,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074485459] [2024-05-04 23:06:28,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:28,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:29,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:29,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:29,209 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:29,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 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) [2024-05-04 23:06:29,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:29,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:29,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:29,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:29,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-05-04 23:06:29,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2024-05-04 23:06:29,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:29,702 INFO L85 PathProgramCache]: Analyzing trace with hash -623229244, now seen corresponding path program 1 times [2024-05-04 23:06:29,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:29,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380126712] [2024-05-04 23:06:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:29,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:29,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:29,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:29,953 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:29,953 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-05-04 23:06:29,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 19 remaining) [2024-05-04 23:06:29,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 19 remaining) [2024-05-04 23:06:29,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 19 remaining) [2024-05-04 23:06:29,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 19 remaining) [2024-05-04 23:06:29,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 19 remaining) [2024-05-04 23:06:29,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 19 remaining) [2024-05-04 23:06:29,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 19 remaining) [2024-05-04 23:06:29,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 19 remaining) [2024-05-04 23:06:29,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-05-04 23:06:29,956 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:29,957 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:29,957 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-05-04 23:06:30,030 INFO L144 ThreadInstanceAdder]: Constructed 17 joinOtherThreadTransitions. [2024-05-04 23:06:30,037 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:30,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:30,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:30,044 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:30,051 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:30,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:30,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:30,051 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:30,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-05-04 23:06:30,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2024-05-04 23:06:30,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2024-05-04 23:06:30,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:30,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1071133168, now seen corresponding path program 1 times [2024-05-04 23:06:30,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:30,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374088380] [2024-05-04 23:06:30,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:30,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 1280 trivial. 0 not checked. [2024-05-04 23:06:30,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:30,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374088380] [2024-05-04 23:06:30,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374088380] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:30,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:30,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:30,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189795572] [2024-05-04 23:06:30,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:30,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:30,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:30,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:30,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:30,276 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:30,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 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) [2024-05-04 23:06:30,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:31,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:31,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-05-04 23:06:31,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2024-05-04 23:06:31,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:31,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1906306536, now seen corresponding path program 1 times [2024-05-04 23:06:31,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:31,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38666617] [2024-05-04 23:06:31,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:31,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-05-04 23:06:31,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:31,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38666617] [2024-05-04 23:06:31,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38666617] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:31,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:31,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:31,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806203185] [2024-05-04 23:06:31,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:31,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:31,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:31,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:31,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:31,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:31,870 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:31,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 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) [2024-05-04 23:06:31,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:31,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:33,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-05-04 23:06:33,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2024-05-04 23:06:33,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:33,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2064396406, now seen corresponding path program 1 times [2024-05-04 23:06:33,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:33,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834055024] [2024-05-04 23:06:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:33,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2024-05-04 23:06:33,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:33,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834055024] [2024-05-04 23:06:33,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834055024] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:33,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:33,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:33,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300183377] [2024-05-04 23:06:33,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:33,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:33,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:34,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:34,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:34,140 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:34,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 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) [2024-05-04 23:06:34,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:34,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:34,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:34,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:34,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-05-04 23:06:34,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2024-05-04 23:06:34,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:34,813 INFO L85 PathProgramCache]: Analyzing trace with hash 693541224, now seen corresponding path program 1 times [2024-05-04 23:06:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:34,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63018924] [2024-05-04 23:06:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:34,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:35,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:35,097 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 20 remaining) [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 20 remaining) [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 20 remaining) [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 20 remaining) [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 20 remaining) [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 20 remaining) [2024-05-04 23:06:35,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 20 remaining) [2024-05-04 23:06:35,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 20 remaining) [2024-05-04 23:06:35,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 20 remaining) [2024-05-04 23:06:35,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 20 remaining) [2024-05-04 23:06:35,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 20 remaining) [2024-05-04 23:06:35,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 20 remaining) [2024-05-04 23:06:35,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-05-04 23:06:35,101 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:35,101 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:35,101 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-05-04 23:06:35,181 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-05-04 23:06:35,189 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:35,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:35,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:35,196 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:35,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (19)] Waiting until timeout for monitored process [2024-05-04 23:06:35,203 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:35,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:35,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:35,204 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:35,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-05-04 23:06:35,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-05-04 23:06:35,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:35,286 INFO L85 PathProgramCache]: Analyzing trace with hash -874933540, now seen corresponding path program 1 times [2024-05-04 23:06:35,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:35,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117945534] [2024-05-04 23:06:35,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:35,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2024-05-04 23:06:35,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:35,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117945534] [2024-05-04 23:06:35,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117945534] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:35,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:35,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:35,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296795718] [2024-05-04 23:06:35,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:35,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:35,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:35,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:35,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:35,384 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:35,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 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) [2024-05-04 23:06:35,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:35,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-05-04 23:06:35,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-05-04 23:06:35,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:35,989 INFO L85 PathProgramCache]: Analyzing trace with hash -348994376, now seen corresponding path program 1 times [2024-05-04 23:06:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:35,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260855057] [2024-05-04 23:06:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:35,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2024-05-04 23:06:36,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:36,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260855057] [2024-05-04 23:06:36,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260855057] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:36,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:36,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36711269] [2024-05-04 23:06:36,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:36,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:36,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:36,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:36,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:36,440 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:36,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 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) [2024-05-04 23:06:36,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:36,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:37,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:37,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:37,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-05-04 23:06:37,617 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-05-04 23:06:37,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash 514742394, now seen corresponding path program 1 times [2024-05-04 23:06:37,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:37,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80662333] [2024-05-04 23:06:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:37,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 1145 trivial. 0 not checked. [2024-05-04 23:06:38,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:38,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80662333] [2024-05-04 23:06:38,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80662333] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:38,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:38,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199910286] [2024-05-04 23:06:38,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:38,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:38,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:38,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:38,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:38,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.66666666666667) internal successors, (622), 6 states have internal predecessors, (622), 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) [2024-05-04 23:06:38,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:38,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:38,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:39,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:39,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-05-04 23:06:39,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-05-04 23:06:39,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:39,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2069876367, now seen corresponding path program 1 times [2024-05-04 23:06:39,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:39,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588335705] [2024-05-04 23:06:39,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:39,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:39,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:39,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:39,353 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:39,353 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-05-04 23:06:39,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 21 remaining) [2024-05-04 23:06:39,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 21 remaining) [2024-05-04 23:06:39,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 21 remaining) [2024-05-04 23:06:39,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 21 remaining) [2024-05-04 23:06:39,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 21 remaining) [2024-05-04 23:06:39,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 21 remaining) [2024-05-04 23:06:39,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 21 remaining) [2024-05-04 23:06:39,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 21 remaining) [2024-05-04 23:06:39,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 21 remaining) [2024-05-04 23:06:39,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 21 remaining) [2024-05-04 23:06:39,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-05-04 23:06:39,356 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-04 23:06:39,356 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:39,356 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-05-04 23:06:39,436 INFO L144 ThreadInstanceAdder]: Constructed 19 joinOtherThreadTransitions. [2024-05-04 23:06:39,444 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:39,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:39,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:39,448 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:39,465 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:39,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:39,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:39,465 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:39,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-05-04 23:06:39,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2024-05-04 23:06:39,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-05-04 23:06:39,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1403410858, now seen corresponding path program 1 times [2024-05-04 23:06:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:39,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974327397] [2024-05-04 23:06:39,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:39,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1620 trivial. 0 not checked. [2024-05-04 23:06:39,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:39,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974327397] [2024-05-04 23:06:39,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974327397] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:39,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:39,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:39,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955577270] [2024-05-04 23:06:39,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:39,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:39,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:39,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:39,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:39,659 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:39,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 122.0) internal successors, (244), 2 states have internal predecessors, (244), 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) [2024-05-04 23:06:39,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:40,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-05-04 23:06:40,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-05-04 23:06:40,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:40,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1435401035, now seen corresponding path program 1 times [2024-05-04 23:06:40,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:40,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296090462] [2024-05-04 23:06:40,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:40,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2024-05-04 23:06:40,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:40,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296090462] [2024-05-04 23:06:40,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296090462] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:40,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:40,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:40,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386431185] [2024-05-04 23:06:40,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:40,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:40,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:40,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:40,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:40,866 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:40,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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) [2024-05-04 23:06:40,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:40,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:42,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:42,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-05-04 23:06:42,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-05-04 23:06:42,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1404781181, now seen corresponding path program 2 times [2024-05-04 23:06:42,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:42,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305234770] [2024-05-04 23:06:42,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-05-04 23:06:42,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:42,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305234770] [2024-05-04 23:06:42,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305234770] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:42,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:42,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:42,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113499291] [2024-05-04 23:06:42,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:42,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:42,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:42,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:42,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:42,899 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:42,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2024-05-04 23:06:42,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:42,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:42,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:43,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:43,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-05-04 23:06:43,467 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-05-04 23:06:43,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:43,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1089401080, now seen corresponding path program 1 times [2024-05-04 23:06:43,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:43,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571920435] [2024-05-04 23:06:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:43,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:43,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:43,833 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:43,833 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-05-04 23:06:43,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 22 remaining) [2024-05-04 23:06:43,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 22 remaining) [2024-05-04 23:06:43,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 22 remaining) [2024-05-04 23:06:43,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 22 remaining) [2024-05-04 23:06:43,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 22 remaining) [2024-05-04 23:06:43,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-05-04 23:06:43,836 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:06:43,836 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:43,836 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-05-04 23:06:43,923 INFO L144 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2024-05-04 23:06:43,931 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:43,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:43,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:43,936 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:43,942 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:43,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:43,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:43,943 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:43,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-05-04 23:06:43,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2024-05-04 23:06:44,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-05-04 23:06:44,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:44,026 INFO L85 PathProgramCache]: Analyzing trace with hash -442686470, now seen corresponding path program 1 times [2024-05-04 23:06:44,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:44,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155047904] [2024-05-04 23:06:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:44,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2024-05-04 23:06:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:44,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155047904] [2024-05-04 23:06:44,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155047904] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:44,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:44,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:44,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091852505] [2024-05-04 23:06:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:44,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:44,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:44,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:44,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:44,107 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:44,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 126.5) internal successors, (253), 2 states have internal predecessors, (253), 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) [2024-05-04 23:06:44,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:44,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-05-04 23:06:44,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-05-04 23:06:44,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1312320144, now seen corresponding path program 1 times [2024-05-04 23:06:44,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:44,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505966953] [2024-05-04 23:06:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:44,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 1710 trivial. 0 not checked. [2024-05-04 23:06:45,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:45,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505966953] [2024-05-04 23:06:45,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505966953] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:45,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:45,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:45,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005829417] [2024-05-04 23:06:45,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:45,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:45,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:45,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:45,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:45,350 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:45,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2024-05-04 23:06:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:45,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:46,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:46,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-05-04 23:06:46,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-05-04 23:06:46,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:46,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1064071560, now seen corresponding path program 2 times [2024-05-04 23:06:46,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:46,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630342174] [2024-05-04 23:06:46,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:46,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 1465 trivial. 0 not checked. [2024-05-04 23:06:47,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:47,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630342174] [2024-05-04 23:06:47,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630342174] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:47,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:47,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:47,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803706281] [2024-05-04 23:06:47,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:47,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:47,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:47,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:47,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:47,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:47,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2024-05-04 23:06:47,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:47,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:47,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:48,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-05-04 23:06:48,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-05-04 23:06:48,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:48,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2082071680, now seen corresponding path program 1 times [2024-05-04 23:06:48,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:48,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413615246] [2024-05-04 23:06:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:48,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:48,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:48,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:48,728 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:48,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-05-04 23:06:48,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 23 remaining) [2024-05-04 23:06:48,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 23 remaining) [2024-05-04 23:06:48,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 23 remaining) [2024-05-04 23:06:48,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 23 remaining) [2024-05-04 23:06:48,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 23 remaining) [2024-05-04 23:06:48,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 23 remaining) [2024-05-04 23:06:48,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 23 remaining) [2024-05-04 23:06:48,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 23 remaining) [2024-05-04 23:06:48,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 23 remaining) [2024-05-04 23:06:48,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 23 remaining) [2024-05-04 23:06:48,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 23 remaining) [2024-05-04 23:06:48,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 23 remaining) [2024-05-04 23:06:48,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 23 remaining) [2024-05-04 23:06:48,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-05-04 23:06:48,736 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:06:48,737 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:48,737 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-05-04 23:06:48,839 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-05-04 23:06:48,847 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:48,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:48,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:48,850 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:48,856 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:48,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:48,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:48,857 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:48,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-05-04 23:06:48,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2024-05-04 23:06:49,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2024-05-04 23:06:49,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:49,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1857939476, now seen corresponding path program 1 times [2024-05-04 23:06:49,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:49,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720351698] [2024-05-04 23:06:49,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:49,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 2000 trivial. 0 not checked. [2024-05-04 23:06:49,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:49,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720351698] [2024-05-04 23:06:49,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720351698] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:49,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:49,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:49,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265475775] [2024-05-04 23:06:49,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:49,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:49,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:49,122 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:49,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.0) internal successors, (262), 2 states have internal predecessors, (262), 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) [2024-05-04 23:06:49,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:50,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:50,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-05-04 23:06:50,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2024-05-04 23:06:50,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 366362545, now seen corresponding path program 1 times [2024-05-04 23:06:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:50,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797302453] [2024-05-04 23:06:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2024-05-04 23:06:50,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797302453] [2024-05-04 23:06:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797302453] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:50,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:50,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408449700] [2024-05-04 23:06:50,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:50,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:50,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:50,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:50,752 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:50,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 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) [2024-05-04 23:06:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:51,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-05-04 23:06:51,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2024-05-04 23:06:51,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1117820779, now seen corresponding path program 2 times [2024-05-04 23:06:51,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:51,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475998027] [2024-05-04 23:06:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:51,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:52,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2024-05-04 23:06:52,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475998027] [2024-05-04 23:06:52,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475998027] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:52,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:52,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:52,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463535414] [2024-05-04 23:06:52,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:52,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:52,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:53,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:53,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:53,377 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:53,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 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) [2024-05-04 23:06:53,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:53,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:53,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:54,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:54,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:54,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:06:54,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-05-04 23:06:54,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2024-05-04 23:06:54,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:54,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1695105164, now seen corresponding path program 1 times [2024-05-04 23:06:54,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:54,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783145125] [2024-05-04 23:06:54,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:54,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:54,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:06:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:06:54,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:06:54,473 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:06:54,473 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 24 remaining) [2024-05-04 23:06:54,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 24 remaining) [2024-05-04 23:06:54,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 24 remaining) [2024-05-04 23:06:54,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 24 remaining) [2024-05-04 23:06:54,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 24 remaining) [2024-05-04 23:06:54,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 24 remaining) [2024-05-04 23:06:54,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-05-04 23:06:54,477 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:06:54,477 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:06:54,477 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-05-04 23:06:54,584 INFO L144 ThreadInstanceAdder]: Constructed 22 joinOtherThreadTransitions. [2024-05-04 23:06:54,593 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:06:54,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:06:54,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:06:54,596 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:06:54,602 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:06:54,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:54,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:06:54,603 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:06:54,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-05-04 23:06:54,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (23)] Waiting until timeout for monitored process [2024-05-04 23:06:54,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2024-05-04 23:06:54,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:54,940 INFO L85 PathProgramCache]: Analyzing trace with hash -276056672, now seen corresponding path program 1 times [2024-05-04 23:06:54,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:54,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836036744] [2024-05-04 23:06:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:54,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2024-05-04 23:06:55,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:55,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836036744] [2024-05-04 23:06:55,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836036744] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:55,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:55,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:06:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808920509] [2024-05-04 23:06:55,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:55,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:06:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:55,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:06:55,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:06:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:55,054 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:55,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 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) [2024-05-04 23:06:55,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:56,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-05-04 23:06:56,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2024-05-04 23:06:56,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:56,356 INFO L85 PathProgramCache]: Analyzing trace with hash 69990631, now seen corresponding path program 1 times [2024-05-04 23:06:56,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:56,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385886047] [2024-05-04 23:06:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:56,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 2100 trivial. 0 not checked. [2024-05-04 23:06:56,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:56,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385886047] [2024-05-04 23:06:56,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385886047] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:56,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:56,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:06:56,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93076768] [2024-05-04 23:06:56,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:56,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:06:56,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:06:57,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:06:57,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:57,024 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:57,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 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) [2024-05-04 23:06:57,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:57,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:58,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-05-04 23:06:58,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2024-05-04 23:06:58,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:06:58,436 INFO L85 PathProgramCache]: Analyzing trace with hash 59984809, now seen corresponding path program 2 times [2024-05-04 23:06:58,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:06:58,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586188260] [2024-05-04 23:06:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:06:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:06:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:06:59,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 1825 trivial. 0 not checked. [2024-05-04 23:06:59,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:06:59,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586188260] [2024-05-04 23:06:59,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586188260] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:06:59,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:06:59,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:06:59,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531582968] [2024-05-04 23:06:59,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:06:59,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:06:59,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:06:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:06:59,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:06:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:59,547 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:06:59,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 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) [2024-05-04 23:06:59,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:06:59,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:06:59,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:07:00,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-05-04 23:07:00,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2024-05-04 23:07:00,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:00,390 INFO L85 PathProgramCache]: Analyzing trace with hash -887139423, now seen corresponding path program 1 times [2024-05-04 23:07:00,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:00,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220719898] [2024-05-04 23:07:00,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:00,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:00,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:07:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:00,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:07:00,651 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 25 remaining) [2024-05-04 23:07:00,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 25 remaining) [2024-05-04 23:07:00,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 25 remaining) [2024-05-04 23:07:00,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 25 remaining) [2024-05-04 23:07:00,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 25 remaining) [2024-05-04 23:07:00,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 25 remaining) [2024-05-04 23:07:00,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 25 remaining) [2024-05-04 23:07:00,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-05-04 23:07:00,655 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:07:00,656 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:07:00,656 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-05-04 23:07:00,761 INFO L144 ThreadInstanceAdder]: Constructed 23 joinOtherThreadTransitions. [2024-05-04 23:07:00,772 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:07:00,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:07:00,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:07:00,780 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:07:00,787 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:07:00,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:00,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:07:00,788 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:07:00,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-05-04 23:07:00,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2024-05-04 23:07:00,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2024-05-04 23:07:00,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash -657386058, now seen corresponding path program 1 times [2024-05-04 23:07:00,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:00,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950494873] [2024-05-04 23:07:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:00,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:01,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked. [2024-05-04 23:07:01,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:01,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950494873] [2024-05-04 23:07:01,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950494873] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:01,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:01,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:07:01,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591678257] [2024-05-04 23:07:01,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:01,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:07:01,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:07:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:07:01,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:01,087 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:01,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 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) [2024-05-04 23:07:01,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:02,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:02,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-05-04 23:07:02,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2024-05-04 23:07:02,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:02,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1007266887, now seen corresponding path program 1 times [2024-05-04 23:07:02,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:02,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141577933] [2024-05-04 23:07:02,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:02,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 2310 trivial. 0 not checked. [2024-05-04 23:07:02,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:02,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141577933] [2024-05-04 23:07:02,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141577933] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:02,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:02,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:07:02,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151629688] [2024-05-04 23:07:02,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:02,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:07:02,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:02,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:07:02,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:07:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:02,945 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:02,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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) [2024-05-04 23:07:02,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:02,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:04,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-05-04 23:07:04,299 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2024-05-04 23:07:04,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash 947862385, now seen corresponding path program 2 times [2024-05-04 23:07:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:04,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958885021] [2024-05-04 23:07:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:04,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 625 proven. 0 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-05-04 23:07:05,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:05,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958885021] [2024-05-04 23:07:05,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958885021] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:05,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:05,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:07:05,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937588188] [2024-05-04 23:07:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:05,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:07:05,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:05,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:07:05,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:07:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:05,557 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:05,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-05-04 23:07:05,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:05,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:05,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:07:06,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-05-04 23:07:06,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2024-05-04 23:07:06,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:06,369 INFO L85 PathProgramCache]: Analyzing trace with hash -387462711, now seen corresponding path program 1 times [2024-05-04 23:07:06,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:06,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465186441] [2024-05-04 23:07:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:06,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:06,430 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:07:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:06,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:07:06,646 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:07:06,646 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-05-04 23:07:06,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 26 remaining) [2024-05-04 23:07:06,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 26 remaining) [2024-05-04 23:07:06,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 26 remaining) [2024-05-04 23:07:06,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 26 remaining) [2024-05-04 23:07:06,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 26 remaining) [2024-05-04 23:07:06,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 26 remaining) [2024-05-04 23:07:06,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 26 remaining) [2024-05-04 23:07:06,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 26 remaining) [2024-05-04 23:07:06,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 26 remaining) [2024-05-04 23:07:06,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 26 remaining) [2024-05-04 23:07:06,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 26 remaining) [2024-05-04 23:07:06,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 26 remaining) [2024-05-04 23:07:06,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 26 remaining) [2024-05-04 23:07:06,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 26 remaining) [2024-05-04 23:07:06,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-05-04 23:07:06,649 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:07:06,649 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:07:06,649 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-05-04 23:07:06,758 INFO L144 ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions. [2024-05-04 23:07:06,893 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:07:06,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:07:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:07:06,899 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:07:06,906 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:07:06,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:06,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:07:06,907 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:07:06,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-05-04 23:07:06,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (25)] Waiting until timeout for monitored process [2024-05-04 23:07:07,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2024-05-04 23:07:07,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1423607474, now seen corresponding path program 1 times [2024-05-04 23:07:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:07,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742920646] [2024-05-04 23:07:07,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:07,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2880 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 2645 trivial. 0 not checked. [2024-05-04 23:07:07,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:07,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742920646] [2024-05-04 23:07:07,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742920646] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:07,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:07,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:07:07,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736865645] [2024-05-04 23:07:07,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:07,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:07:07,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:07,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:07:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:07:07,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:07,353 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:07,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 144.5) internal successors, (289), 2 states have internal predecessors, (289), 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) [2024-05-04 23:07:07,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:08,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-05-04 23:07:08,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2024-05-04 23:07:08,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:08,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1520606907, now seen corresponding path program 1 times [2024-05-04 23:07:08,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:08,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009279931] [2024-05-04 23:07:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:08,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2880 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 2530 trivial. 0 not checked. [2024-05-04 23:07:09,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:09,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009279931] [2024-05-04 23:07:09,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009279931] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:09,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:09,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:07:09,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213476874] [2024-05-04 23:07:09,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:09,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:07:09,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:07:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:07:09,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:09,872 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:09,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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) [2024-05-04 23:07:09,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:09,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:11,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:11,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-05-04 23:07:11,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2024-05-04 23:07:11,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:11,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1396053901, now seen corresponding path program 2 times [2024-05-04 23:07:11,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:11,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823048463] [2024-05-04 23:07:11,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:11,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2880 backedges. 655 proven. 0 refuted. 0 times theorem prover too weak. 2225 trivial. 0 not checked. [2024-05-04 23:07:12,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:12,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823048463] [2024-05-04 23:07:12,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823048463] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:12,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:12,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:07:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378620133] [2024-05-04 23:07:12,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:12,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:07:12,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:12,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:07:12,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:07:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:12,954 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:12,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2024-05-04 23:07:12,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:12,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:12,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:14,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:14,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:14,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:07:14,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-05-04 23:07:14,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2024-05-04 23:07:14,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash -933061852, now seen corresponding path program 1 times [2024-05-04 23:07:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:14,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825710529] [2024-05-04 23:07:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:14,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:14,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:07:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:14,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:07:14,363 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:07:14,363 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-05-04 23:07:14,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 27 remaining) [2024-05-04 23:07:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 27 remaining) [2024-05-04 23:07:14,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 27 remaining) [2024-05-04 23:07:14,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 27 remaining) [2024-05-04 23:07:14,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 27 remaining) [2024-05-04 23:07:14,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 27 remaining) [2024-05-04 23:07:14,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 27 remaining) [2024-05-04 23:07:14,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-05-04 23:07:14,367 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:07:14,368 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:07:14,368 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-05-04 23:07:14,469 INFO L144 ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions. [2024-05-04 23:07:14,478 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:07:14,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:07:14,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:07:14,484 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:07:14,495 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:07:14,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:14,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:07:14,495 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:07:14,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-05-04 23:07:14,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (26)] Waiting until timeout for monitored process [2024-05-04 23:07:14,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2024-05-04 23:07:14,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash -256761080, now seen corresponding path program 1 times [2024-05-04 23:07:14,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:14,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016156601] [2024-05-04 23:07:14,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:14,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3125 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 2880 trivial. 0 not checked. [2024-05-04 23:07:14,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:14,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016156601] [2024-05-04 23:07:14,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016156601] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:14,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:14,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:07:14,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364279117] [2024-05-04 23:07:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:14,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:07:14,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:14,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:07:14,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:07:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:14,925 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:14,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 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) [2024-05-04 23:07:14,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:17,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-05-04 23:07:17,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2024-05-04 23:07:17,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:17,228 INFO L85 PathProgramCache]: Analyzing trace with hash -304348534, now seen corresponding path program 1 times [2024-05-04 23:07:17,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:17,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430563227] [2024-05-04 23:07:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:17,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3125 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 2760 trivial. 0 not checked. [2024-05-04 23:07:17,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:17,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430563227] [2024-05-04 23:07:17,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430563227] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:17,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:17,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:07:17,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738238888] [2024-05-04 23:07:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:17,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:07:17,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:18,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:07:18,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:07:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:18,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:18,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 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) [2024-05-04 23:07:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:20,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-05-04 23:07:20,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2024-05-04 23:07:20,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1997881516, now seen corresponding path program 2 times [2024-05-04 23:07:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206336134] [2024-05-04 23:07:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:20,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3125 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 2440 trivial. 0 not checked. [2024-05-04 23:07:21,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:21,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206336134] [2024-05-04 23:07:21,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206336134] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:21,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:21,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:07:21,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125487325] [2024-05-04 23:07:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:21,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:07:21,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:21,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:07:21,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:07:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:21,713 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:21,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.16666666666666) internal successors, (883), 6 states have internal predecessors, (883), 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) [2024-05-04 23:07:21,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:21,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:21,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:23,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:07:23,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-05-04 23:07:23,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2024-05-04 23:07:23,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:23,023 INFO L85 PathProgramCache]: Analyzing trace with hash -914447609, now seen corresponding path program 1 times [2024-05-04 23:07:23,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:23,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438569125] [2024-05-04 23:07:23,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:23,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:23,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:07:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:23,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:07:23,369 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:07:23,369 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-05-04 23:07:23,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 28 remaining) [2024-05-04 23:07:23,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 28 remaining) [2024-05-04 23:07:23,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 28 remaining) [2024-05-04 23:07:23,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 28 remaining) [2024-05-04 23:07:23,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 28 remaining) [2024-05-04 23:07:23,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 28 remaining) [2024-05-04 23:07:23,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-05-04 23:07:23,373 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:07:23,373 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:07:23,373 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-05-04 23:07:23,484 INFO L144 ThreadInstanceAdder]: Constructed 26 joinOtherThreadTransitions. [2024-05-04 23:07:23,492 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:07:23,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:07:23,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:07:23,500 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:07:23,506 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:07:23,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:23,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:07:23,506 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:07:23,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-05-04 23:07:23,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2024-05-04 23:07:23,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-05-04 23:07:23,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1595873020, now seen corresponding path program 1 times [2024-05-04 23:07:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:23,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210073194] [2024-05-04 23:07:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:23,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:23,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3380 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 3125 trivial. 0 not checked. [2024-05-04 23:07:23,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:23,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210073194] [2024-05-04 23:07:23,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210073194] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:23,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:23,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:07:23,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593988136] [2024-05-04 23:07:23,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:23,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:07:23,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:23,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:07:23,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:07:23,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:23,942 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:23,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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) [2024-05-04 23:07:23,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:26,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-05-04 23:07:26,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-05-04 23:07:26,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:26,257 INFO L85 PathProgramCache]: Analyzing trace with hash -183716887, now seen corresponding path program 1 times [2024-05-04 23:07:26,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:26,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643446738] [2024-05-04 23:07:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3380 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2024-05-04 23:07:26,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:26,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643446738] [2024-05-04 23:07:26,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643446738] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:26,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:26,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:07:26,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137113711] [2024-05-04 23:07:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:26,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:07:26,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:27,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:07:27,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:07:27,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:27,072 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:27,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 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) [2024-05-04 23:07:27,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:27,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:28,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:28,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-05-04 23:07:28,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-05-04 23:07:28,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:28,962 INFO L85 PathProgramCache]: Analyzing trace with hash 982234071, now seen corresponding path program 2 times [2024-05-04 23:07:28,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:28,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229292806] [2024-05-04 23:07:28,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:28,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:29,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3380 backedges. 715 proven. 0 refuted. 0 times theorem prover too weak. 2665 trivial. 0 not checked. [2024-05-04 23:07:29,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:29,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229292806] [2024-05-04 23:07:29,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229292806] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:29,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:29,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:07:29,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115311380] [2024-05-04 23:07:29,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:30,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:07:30,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:30,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:07:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:07:30,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:30,358 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:30,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 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) [2024-05-04 23:07:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:07:31,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-05-04 23:07:31,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-05-04 23:07:31,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:31,687 INFO L85 PathProgramCache]: Analyzing trace with hash -879562695, now seen corresponding path program 1 times [2024-05-04 23:07:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:31,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523915881] [2024-05-04 23:07:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:31,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:07:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:31,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:07:31,977 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:07:31,977 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 29 remaining) [2024-05-04 23:07:31,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 29 remaining) [2024-05-04 23:07:31,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 29 remaining) [2024-05-04 23:07:31,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-05-04 23:07:31,980 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:07:31,980 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:07:31,980 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-05-04 23:07:32,093 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-05-04 23:07:32,101 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:07:32,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:07:32,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:07:32,108 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:07:32,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (28)] Waiting until timeout for monitored process [2024-05-04 23:07:32,117 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:07:32,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:32,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:07:32,118 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:07:32,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-05-04 23:07:32,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2024-05-04 23:07:32,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2055703906, now seen corresponding path program 1 times [2024-05-04 23:07:32,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:32,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707391799] [2024-05-04 23:07:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:32,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3645 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 3380 trivial. 0 not checked. [2024-05-04 23:07:32,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:32,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707391799] [2024-05-04 23:07:32,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707391799] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:32,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:32,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:07:32,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932159711] [2024-05-04 23:07:32,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:32,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:07:32,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:32,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:07:32,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:07:32,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:32,508 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:32,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 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) [2024-05-04 23:07:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:34,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:34,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-05-04 23:07:34,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2024-05-04 23:07:34,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash 165947218, now seen corresponding path program 1 times [2024-05-04 23:07:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:34,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305149318] [2024-05-04 23:07:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:34,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3645 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 3250 trivial. 0 not checked. [2024-05-04 23:07:35,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305149318] [2024-05-04 23:07:35,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305149318] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:35,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:35,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:07:35,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396836023] [2024-05-04 23:07:35,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:35,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:07:35,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:35,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:07:35,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:07:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:35,805 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:35,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 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) [2024-05-04 23:07:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:37,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-05-04 23:07:37,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2024-05-04 23:07:37,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1687689200, now seen corresponding path program 2 times [2024-05-04 23:07:37,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174462185] [2024-05-04 23:07:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3645 backedges. 745 proven. 0 refuted. 0 times theorem prover too weak. 2900 trivial. 0 not checked. [2024-05-04 23:07:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174462185] [2024-05-04 23:07:38,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174462185] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:38,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:38,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:07:38,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147581219] [2024-05-04 23:07:38,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:38,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:07:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:38,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:07:38,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:07:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:38,967 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:38,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.83333333333334) internal successors, (953), 6 states have internal predecessors, (953), 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) [2024-05-04 23:07:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:40,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:07:40,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-05-04 23:07:40,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2024-05-04 23:07:40,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:40,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1363393085, now seen corresponding path program 1 times [2024-05-04 23:07:40,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:40,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237024990] [2024-05-04 23:07:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:40,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:40,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:07:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:40,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:07:40,759 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:07:40,759 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-05-04 23:07:40,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 30 remaining) [2024-05-04 23:07:40,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 30 remaining) [2024-05-04 23:07:40,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 30 remaining) [2024-05-04 23:07:40,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 30 remaining) [2024-05-04 23:07:40,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 30 remaining) [2024-05-04 23:07:40,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 30 remaining) [2024-05-04 23:07:40,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 30 remaining) [2024-05-04 23:07:40,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 30 remaining) [2024-05-04 23:07:40,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 30 remaining) [2024-05-04 23:07:40,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 30 remaining) [2024-05-04 23:07:40,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-05-04 23:07:40,762 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:07:40,763 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:07:40,763 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-05-04 23:07:40,870 INFO L144 ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions. [2024-05-04 23:07:40,879 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:07:40,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:07:40,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:07:40,884 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:07:40,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (29)] Waiting until timeout for monitored process [2024-05-04 23:07:40,894 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:07:40,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:40,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:07:40,895 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:07:40,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-05-04 23:07:41,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2024-05-04 23:07:41,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:41,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1460127426, now seen corresponding path program 1 times [2024-05-04 23:07:41,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:41,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801526715] [2024-05-04 23:07:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:41,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 3645 trivial. 0 not checked. [2024-05-04 23:07:41,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:41,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801526715] [2024-05-04 23:07:41,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801526715] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:41,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:41,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:07:41,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722483838] [2024-05-04 23:07:41,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:41,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:07:41,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:41,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:07:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:07:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:41,515 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:41,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 162.5) internal successors, (325), 2 states have internal predecessors, (325), 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) [2024-05-04 23:07:41,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:45,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-05-04 23:07:45,333 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2024-05-04 23:07:45,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash 379072653, now seen corresponding path program 1 times [2024-05-04 23:07:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649044449] [2024-05-04 23:07:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:45,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 3510 trivial. 0 not checked. [2024-05-04 23:07:45,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:45,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649044449] [2024-05-04 23:07:45,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649044449] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:45,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:45,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:07:45,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206708297] [2024-05-04 23:07:45,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:45,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:07:45,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:46,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:07:46,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:07:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:46,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:46,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 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) [2024-05-04 23:07:46,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:46,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:48,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:48,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-05-04 23:07:48,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2024-05-04 23:07:48,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash 611896205, now seen corresponding path program 2 times [2024-05-04 23:07:48,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:48,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995323942] [2024-05-04 23:07:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:48,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:49,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 775 proven. 0 refuted. 0 times theorem prover too weak. 3145 trivial. 0 not checked. [2024-05-04 23:07:49,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:49,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995323942] [2024-05-04 23:07:49,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995323942] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:49,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:49,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:07:49,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252016220] [2024-05-04 23:07:49,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:49,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:07:49,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:50,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:07:50,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:07:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:50,101 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:50,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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) [2024-05-04 23:07:50,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:50,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:50,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:52,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:07:52,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-05-04 23:07:52,090 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2024-05-04 23:07:52,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:52,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2126860841, now seen corresponding path program 1 times [2024-05-04 23:07:52,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:52,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635099188] [2024-05-04 23:07:52,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:52,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:52,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:07:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:07:52,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:07:52,523 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 31 remaining) [2024-05-04 23:07:52,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 31 remaining) [2024-05-04 23:07:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 31 remaining) [2024-05-04 23:07:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 31 remaining) [2024-05-04 23:07:52,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-05-04 23:07:52,527 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:07:52,527 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:07:52,527 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-05-04 23:07:52,649 INFO L144 ThreadInstanceAdder]: Constructed 29 joinOtherThreadTransitions. [2024-05-04 23:07:52,657 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:07:52,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:07:52,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:07:52,658 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:07:52,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2024-05-04 23:07:52,661 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:07:52,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:52,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:07:52,662 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:07:52,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-05-04 23:07:52,883 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2024-05-04 23:07:52,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash 423014340, now seen corresponding path program 1 times [2024-05-04 23:07:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:52,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948819744] [2024-05-04 23:07:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:52,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4205 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 3920 trivial. 0 not checked. [2024-05-04 23:07:52,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:52,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948819744] [2024-05-04 23:07:52,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948819744] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:52,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:52,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:07:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240359991] [2024-05-04 23:07:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:52,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:07:52,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:07:52,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:07:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:53,000 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:53,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 167.0) internal successors, (334), 2 states have internal predecessors, (334), 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) [2024-05-04 23:07:53,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:55,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-05-04 23:07:55,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2024-05-04 23:07:55,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:55,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1703693010, now seen corresponding path program 1 times [2024-05-04 23:07:55,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:55,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474052414] [2024-05-04 23:07:55,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:55,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4205 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2024-05-04 23:07:55,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:55,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474052414] [2024-05-04 23:07:55,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474052414] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:55,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:55,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:07:55,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63032148] [2024-05-04 23:07:55,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:55,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:07:55,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:55,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:07:55,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:07:55,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:55,938 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:55,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.0) internal successors, (1023), 3 states have internal predecessors, (1023), 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) [2024-05-04 23:07:55,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:55,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:57,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-05-04 23:07:57,494 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2024-05-04 23:07:57,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:07:57,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1604174306, now seen corresponding path program 2 times [2024-05-04 23:07:57,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:07:57,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704152280] [2024-05-04 23:07:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:07:57,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:07:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:07:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4205 backedges. 805 proven. 0 refuted. 0 times theorem prover too weak. 3400 trivial. 0 not checked. [2024-05-04 23:07:58,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:07:58,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704152280] [2024-05-04 23:07:58,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704152280] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:07:58,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:07:58,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:07:58,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275202223] [2024-05-04 23:07:58,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:07:58,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:07:58,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:07:58,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:07:58,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:07:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:58,915 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:07:58,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 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) [2024-05-04 23:07:58,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:07:58,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:07:58,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:08:00,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-05-04 23:08:00,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2024-05-04 23:08:00,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:00,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1056394715, now seen corresponding path program 1 times [2024-05-04 23:08:00,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:00,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890514534] [2024-05-04 23:08:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:00,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:00,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:08:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:00,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:08:00,749 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 32 remaining) [2024-05-04 23:08:00,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 32 remaining) [2024-05-04 23:08:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 32 remaining) [2024-05-04 23:08:00,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 32 remaining) [2024-05-04 23:08:00,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 32 remaining) [2024-05-04 23:08:00,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 32 remaining) [2024-05-04 23:08:00,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-05-04 23:08:00,751 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:08:00,752 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:08:00,752 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-05-04 23:08:00,875 INFO L144 ThreadInstanceAdder]: Constructed 30 joinOtherThreadTransitions. [2024-05-04 23:08:00,883 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:08:00,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:08:00,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:08:00,885 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:08:00,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (31)] Waiting until timeout for monitored process [2024-05-04 23:08:00,887 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:08:00,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:00,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:08:00,888 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:08:00,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-05-04 23:08:01,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2024-05-04 23:08:01,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:01,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1288867592, now seen corresponding path program 1 times [2024-05-04 23:08:01,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:01,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858409186] [2024-05-04 23:08:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:01,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4500 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 4205 trivial. 0 not checked. [2024-05-04 23:08:01,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:01,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858409186] [2024-05-04 23:08:01,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858409186] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:01,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:01,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:08:01,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376466927] [2024-05-04 23:08:01,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:01,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:08:01,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:01,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:08:01,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:08:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:01,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:01,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 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) [2024-05-04 23:08:01,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:04,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-05-04 23:08:04,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2024-05-04 23:08:04,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:04,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1988640264, now seen corresponding path program 1 times [2024-05-04 23:08:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:04,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829993179] [2024-05-04 23:08:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:04,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4500 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 4060 trivial. 0 not checked. [2024-05-04 23:08:05,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:05,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829993179] [2024-05-04 23:08:05,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829993179] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:05,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:05,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:08:05,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230800549] [2024-05-04 23:08:05,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:05,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:08:05,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:05,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:08:05,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:08:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:05,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:05,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 352.6666666666667) internal successors, (1058), 3 states have internal predecessors, (1058), 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) [2024-05-04 23:08:05,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:05,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:07,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-05-04 23:08:07,144 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2024-05-04 23:08:07,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:07,145 INFO L85 PathProgramCache]: Analyzing trace with hash -294421578, now seen corresponding path program 2 times [2024-05-04 23:08:07,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:07,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490204531] [2024-05-04 23:08:07,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:07,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:08,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4500 backedges. 835 proven. 0 refuted. 0 times theorem prover too weak. 3665 trivial. 0 not checked. [2024-05-04 23:08:08,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:08,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490204531] [2024-05-04 23:08:08,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490204531] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:08,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:08,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:08:08,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654410469] [2024-05-04 23:08:08,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:08,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:08:08,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:08,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:08:08,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:08:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:08,564 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:08,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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) [2024-05-04 23:08:08,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:08,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:08,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:08:10,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-05-04 23:08:10,203 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2024-05-04 23:08:10,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:10,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1182068478, now seen corresponding path program 1 times [2024-05-04 23:08:10,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:10,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162662068] [2024-05-04 23:08:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:10,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:10,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:08:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:10,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:08:10,661 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:08:10,661 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-05-04 23:08:10,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 33 remaining) [2024-05-04 23:08:10,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 33 remaining) [2024-05-04 23:08:10,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 33 remaining) [2024-05-04 23:08:10,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 33 remaining) [2024-05-04 23:08:10,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-05-04 23:08:10,664 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:08:10,664 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:08:10,664 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-05-04 23:08:10,777 INFO L144 ThreadInstanceAdder]: Constructed 31 joinOtherThreadTransitions. [2024-05-04 23:08:10,887 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:08:10,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:08:10,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:08:10,895 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:08:10,898 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:08:10,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:10,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:08:10,899 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:08:10,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-05-04 23:08:10,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (32)] Waiting until timeout for monitored process [2024-05-04 23:08:11,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2024-05-04 23:08:11,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:11,527 INFO L85 PathProgramCache]: Analyzing trace with hash 790870062, now seen corresponding path program 1 times [2024-05-04 23:08:11,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:11,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248464660] [2024-05-04 23:08:11,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:11,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4805 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 4500 trivial. 0 not checked. [2024-05-04 23:08:11,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:11,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248464660] [2024-05-04 23:08:11,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248464660] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:11,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:11,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:08:11,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538821490] [2024-05-04 23:08:11,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:11,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:08:11,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:11,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:08:11,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:08:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:11,652 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:11,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 176.0) internal successors, (352), 2 states have internal predecessors, (352), 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) [2024-05-04 23:08:11,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:15,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:15,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-05-04 23:08:15,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2024-05-04 23:08:15,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:15,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1866098, now seen corresponding path program 1 times [2024-05-04 23:08:15,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:15,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567191831] [2024-05-04 23:08:15,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4805 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 4350 trivial. 0 not checked. [2024-05-04 23:08:15,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:15,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567191831] [2024-05-04 23:08:15,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567191831] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:15,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:15,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:08:15,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141711484] [2024-05-04 23:08:15,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:15,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:08:15,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:08:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:08:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:16,219 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:16,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 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) [2024-05-04 23:08:16,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:16,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:18,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:18,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-05-04 23:08:18,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2024-05-04 23:08:18,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash -370968392, now seen corresponding path program 2 times [2024-05-04 23:08:18,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:18,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036293810] [2024-05-04 23:08:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:18,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4805 backedges. 865 proven. 0 refuted. 0 times theorem prover too weak. 3940 trivial. 0 not checked. [2024-05-04 23:08:19,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:19,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036293810] [2024-05-04 23:08:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036293810] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:19,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:19,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:08:19,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992942249] [2024-05-04 23:08:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:19,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:08:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:08:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:08:19,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:19,928 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:19,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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) [2024-05-04 23:08:19,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:19,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:19,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:08:21,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-05-04 23:08:21,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2024-05-04 23:08:21,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash -498812671, now seen corresponding path program 1 times [2024-05-04 23:08:21,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:21,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702390178] [2024-05-04 23:08:21,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:21,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:21,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:08:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:22,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:08:22,304 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 34 remaining) [2024-05-04 23:08:22,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 34 remaining) [2024-05-04 23:08:22,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 34 remaining) [2024-05-04 23:08:22,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 34 remaining) [2024-05-04 23:08:22,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-05-04 23:08:22,308 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:08:22,308 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:08:22,309 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-05-04 23:08:22,441 INFO L144 ThreadInstanceAdder]: Constructed 32 joinOtherThreadTransitions. [2024-05-04 23:08:22,451 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:08:22,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:08:22,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:08:22,454 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:08:22,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (33)] Waiting until timeout for monitored process [2024-05-04 23:08:22,490 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:08:22,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:22,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:08:22,491 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:08:22,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-05-04 23:08:22,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2024-05-04 23:08:22,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:22,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1318472790, now seen corresponding path program 1 times [2024-05-04 23:08:22,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:22,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839489882] [2024-05-04 23:08:22,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:22,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5120 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 4805 trivial. 0 not checked. [2024-05-04 23:08:22,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:22,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839489882] [2024-05-04 23:08:22,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839489882] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:22,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:22,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:08:22,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762075913] [2024-05-04 23:08:22,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:22,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:08:22,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:08:23,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:08:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:23,022 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:23,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 180.5) internal successors, (361), 2 states have internal predecessors, (361), 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) [2024-05-04 23:08:23,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:26,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-05-04 23:08:26,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2024-05-04 23:08:26,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash -748357269, now seen corresponding path program 1 times [2024-05-04 23:08:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:26,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134235394] [2024-05-04 23:08:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:27,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5120 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 4650 trivial. 0 not checked. [2024-05-04 23:08:27,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:27,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134235394] [2024-05-04 23:08:27,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134235394] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:27,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:27,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:08:27,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481956692] [2024-05-04 23:08:27,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:27,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:08:27,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:27,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:08:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:08:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:27,364 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:27,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 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) [2024-05-04 23:08:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:29,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:29,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:29,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-05-04 23:08:29,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2024-05-04 23:08:29,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:29,436 INFO L85 PathProgramCache]: Analyzing trace with hash 919800621, now seen corresponding path program 2 times [2024-05-04 23:08:29,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:29,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905923050] [2024-05-04 23:08:29,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:29,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:30,594 INFO L134 CoverageAnalysis]: Checked inductivity of 5120 backedges. 895 proven. 0 refuted. 0 times theorem prover too weak. 4225 trivial. 0 not checked. [2024-05-04 23:08:30,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:30,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905923050] [2024-05-04 23:08:30,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905923050] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:30,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:30,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:08:30,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231456326] [2024-05-04 23:08:30,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:30,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:08:30,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:31,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:08:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:08:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:31,112 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:31,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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) [2024-05-04 23:08:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:33,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:33,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:33,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:08:33,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-05-04 23:08:33,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2024-05-04 23:08:33,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:33,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1278036008, now seen corresponding path program 1 times [2024-05-04 23:08:33,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:33,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956437258] [2024-05-04 23:08:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:33,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:08:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:33,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:08:33,520 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:08:33,520 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 35 remaining) [2024-05-04 23:08:33,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 35 remaining) [2024-05-04 23:08:33,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 35 remaining) [2024-05-04 23:08:33,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 35 remaining) [2024-05-04 23:08:33,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-05-04 23:08:33,524 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:08:33,524 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:08:33,524 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-05-04 23:08:33,647 INFO L144 ThreadInstanceAdder]: Constructed 33 joinOtherThreadTransitions. [2024-05-04 23:08:33,656 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:08:33,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:08:33,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:08:33,659 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:08:33,662 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:08:33,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:33,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:08:33,662 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:08:33,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-05-04 23:08:33,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (34)] Waiting until timeout for monitored process [2024-05-04 23:08:34,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-05-04 23:08:34,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:34,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2052140896, now seen corresponding path program 1 times [2024-05-04 23:08:34,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:34,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329479745] [2024-05-04 23:08:34,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:34,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5445 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 5120 trivial. 0 not checked. [2024-05-04 23:08:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:34,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329479745] [2024-05-04 23:08:34,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329479745] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:34,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:34,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:08:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023408474] [2024-05-04 23:08:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:34,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:08:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:34,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:08:34,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:08:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:34,866 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:34,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 185.0) internal successors, (370), 2 states have internal predecessors, (370), 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) [2024-05-04 23:08:34,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:41,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-05-04 23:08:41,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-05-04 23:08:41,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1802126987, now seen corresponding path program 1 times [2024-05-04 23:08:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:41,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564581148] [2024-05-04 23:08:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:41,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5445 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 4960 trivial. 0 not checked. [2024-05-04 23:08:42,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564581148] [2024-05-04 23:08:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564581148] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:42,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:42,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:08:42,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297335794] [2024-05-04 23:08:42,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:42,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:08:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:08:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:08:43,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:43,039 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:43,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 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) [2024-05-04 23:08:43,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:43,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:46,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-05-04 23:08:46,160 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-05-04 23:08:46,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1178500059, now seen corresponding path program 2 times [2024-05-04 23:08:46,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049525903] [2024-05-04 23:08:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:47,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5445 backedges. 925 proven. 0 refuted. 0 times theorem prover too weak. 4520 trivial. 0 not checked. [2024-05-04 23:08:47,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:47,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049525903] [2024-05-04 23:08:47,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049525903] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:47,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:47,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:08:47,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804539617] [2024-05-04 23:08:47,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:47,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:08:47,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:47,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:08:47,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:08:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:47,831 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:47,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 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) [2024-05-04 23:08:47,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:47,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:47,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:08:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:08:50,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-05-04 23:08:50,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-05-04 23:08:50,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:50,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1689954566, now seen corresponding path program 1 times [2024-05-04 23:08:50,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:50,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256707528] [2024-05-04 23:08:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:50,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:51,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:08:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:08:51,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:08:51,398 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:08:51,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-05-04 23:08:51,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 36 remaining) [2024-05-04 23:08:51,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 36 remaining) [2024-05-04 23:08:51,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 36 remaining) [2024-05-04 23:08:51,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 36 remaining) [2024-05-04 23:08:51,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 36 remaining) [2024-05-04 23:08:51,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 36 remaining) [2024-05-04 23:08:51,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-05-04 23:08:51,401 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:08:51,401 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:08:51,401 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-05-04 23:08:51,520 INFO L144 ThreadInstanceAdder]: Constructed 34 joinOtherThreadTransitions. [2024-05-04 23:08:51,528 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:08:51,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:08:51,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:08:51,536 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:08:51,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (35)] Waiting until timeout for monitored process [2024-05-04 23:08:51,553 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:08:51,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:51,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:08:51,554 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:08:51,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-05-04 23:08:52,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2024-05-04 23:08:52,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:52,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1575264596, now seen corresponding path program 1 times [2024-05-04 23:08:52,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:52,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058654046] [2024-05-04 23:08:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:52,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:08:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 5780 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 5445 trivial. 0 not checked. [2024-05-04 23:08:52,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:08:52,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058654046] [2024-05-04 23:08:52,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058654046] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:08:52,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:08:52,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:08:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936509992] [2024-05-04 23:08:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:08:52,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:08:52,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:08:52,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:08:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:08:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:52,751 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:08:52,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.5) internal successors, (379), 2 states have internal predecessors, (379), 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) [2024-05-04 23:08:52,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:08:59,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-05-04 23:08:59,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2024-05-04 23:08:59,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:08:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 694992591, now seen corresponding path program 1 times [2024-05-04 23:08:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:08:59,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983456000] [2024-05-04 23:08:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:08:59,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:08:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:00,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5780 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 5280 trivial. 0 not checked. [2024-05-04 23:09:00,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:00,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983456000] [2024-05-04 23:09:00,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983456000] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:00,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:00,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:09:00,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402979081] [2024-05-04 23:09:00,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:00,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:09:00,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:00,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:09:00,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:09:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:00,604 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:00,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 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) [2024-05-04 23:09:00,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:00,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:03,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:03,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-05-04 23:09:03,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2024-05-04 23:09:03,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:03,432 INFO L85 PathProgramCache]: Analyzing trace with hash 19779475, now seen corresponding path program 2 times [2024-05-04 23:09:03,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:03,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309150251] [2024-05-04 23:09:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5780 backedges. 955 proven. 0 refuted. 0 times theorem prover too weak. 4825 trivial. 0 not checked. [2024-05-04 23:09:04,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:04,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309150251] [2024-05-04 23:09:04,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309150251] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:04,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:04,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:09:04,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026390089] [2024-05-04 23:09:04,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:04,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:09:04,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:05,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:09:05,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:09:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:05,243 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:05,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 199.66666666666666) internal successors, (1198), 6 states have internal predecessors, (1198), 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) [2024-05-04 23:09:05,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:05,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:05,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:09:08,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-05-04 23:09:08,130 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2024-05-04 23:09:08,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:08,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1108519005, now seen corresponding path program 1 times [2024-05-04 23:09:08,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:08,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411587058] [2024-05-04 23:09:08,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:08,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:08,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:09:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:08,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:09:08,649 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:09:08,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-05-04 23:09:08,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 37 remaining) [2024-05-04 23:09:08,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 37 remaining) [2024-05-04 23:09:08,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 37 remaining) [2024-05-04 23:09:08,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 37 remaining) [2024-05-04 23:09:08,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 37 remaining) [2024-05-04 23:09:08,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 37 remaining) [2024-05-04 23:09:08,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 37 remaining) [2024-05-04 23:09:08,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 37 remaining) [2024-05-04 23:09:08,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 37 remaining) [2024-05-04 23:09:08,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 37 remaining) [2024-05-04 23:09:08,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 37 remaining) [2024-05-04 23:09:08,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-05-04 23:09:08,652 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:09:08,652 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:09:08,652 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-05-04 23:09:08,814 INFO L144 ThreadInstanceAdder]: Constructed 35 joinOtherThreadTransitions. [2024-05-04 23:09:08,824 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:09:08,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:09:08,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:09:08,830 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:09:08,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (36)] Waiting until timeout for monitored process [2024-05-04 23:09:08,854 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:09:08,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:08,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:09:08,855 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:09:08,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-05-04 23:09:09,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 35 more)] === [2024-05-04 23:09:09,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash -933904102, now seen corresponding path program 1 times [2024-05-04 23:09:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454536745] [2024-05-04 23:09:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:09,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6125 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 5780 trivial. 0 not checked. [2024-05-04 23:09:09,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:09,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454536745] [2024-05-04 23:09:09,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454536745] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:09,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:09,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:09:09,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395761702] [2024-05-04 23:09:09,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:09,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:09:09,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:09,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:09:09,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:09:09,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:09,896 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:09,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 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) [2024-05-04 23:09:09,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:15,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-05-04 23:09:15,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 35 more)] === [2024-05-04 23:09:15,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:15,730 INFO L85 PathProgramCache]: Analyzing trace with hash -22347033, now seen corresponding path program 1 times [2024-05-04 23:09:15,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:15,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451225869] [2024-05-04 23:09:15,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:15,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 6125 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 5610 trivial. 0 not checked. [2024-05-04 23:09:16,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:16,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451225869] [2024-05-04 23:09:16,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451225869] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:16,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:16,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:09:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461873121] [2024-05-04 23:09:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:16,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:09:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:16,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:09:16,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:09:16,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:16,924 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:16,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.0) internal successors, (1233), 3 states have internal predecessors, (1233), 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) [2024-05-04 23:09:16,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:16,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:19,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-05-04 23:09:19,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 35 more)] === [2024-05-04 23:09:19,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:19,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1874747651, now seen corresponding path program 2 times [2024-05-04 23:09:19,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:19,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713939094] [2024-05-04 23:09:19,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:19,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6125 backedges. 985 proven. 0 refuted. 0 times theorem prover too weak. 5140 trivial. 0 not checked. [2024-05-04 23:09:20,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:20,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713939094] [2024-05-04 23:09:20,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713939094] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:20,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:20,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:09:20,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643047614] [2024-05-04 23:09:20,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:20,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:09:20,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:09:20,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:09:20,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:20,898 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:20,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 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) [2024-05-04 23:09:20,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:20,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:20,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:09:23,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-05-04 23:09:23,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 35 more)] === [2024-05-04 23:09:23,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:23,687 INFO L85 PathProgramCache]: Analyzing trace with hash -309182506, now seen corresponding path program 1 times [2024-05-04 23:09:23,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:23,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736665335] [2024-05-04 23:09:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:23,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:09:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:24,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:09:24,258 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:09:24,258 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-05-04 23:09:24,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 38 remaining) [2024-05-04 23:09:24,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 38 remaining) [2024-05-04 23:09:24,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 38 remaining) [2024-05-04 23:09:24,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 38 remaining) [2024-05-04 23:09:24,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 38 remaining) [2024-05-04 23:09:24,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 38 remaining) [2024-05-04 23:09:24,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 38 remaining) [2024-05-04 23:09:24,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 38 remaining) [2024-05-04 23:09:24,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 38 remaining) [2024-05-04 23:09:24,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-05-04 23:09:24,263 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:09:24,263 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:09:24,263 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-05-04 23:09:24,407 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-05-04 23:09:24,417 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:09:24,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:09:24,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:09:24,428 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:09:24,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (37)] Waiting until timeout for monitored process [2024-05-04 23:09:24,605 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:09:24,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:24,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:09:24,611 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:09:24,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-05-04 23:09:25,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2024-05-04 23:09:25,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash -969488758, now seen corresponding path program 1 times [2024-05-04 23:09:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:25,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399864873] [2024-05-04 23:09:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:25,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:25,587 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 6125 trivial. 0 not checked. [2024-05-04 23:09:25,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:25,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399864873] [2024-05-04 23:09:25,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399864873] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:25,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:25,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:09:25,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919722407] [2024-05-04 23:09:25,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:25,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:09:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:09:25,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:09:25,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:25,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:25,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 198.5) internal successors, (397), 2 states have internal predecessors, (397), 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) [2024-05-04 23:09:25,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:30,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-05-04 23:09:30,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2024-05-04 23:09:30,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1628092209, now seen corresponding path program 1 times [2024-05-04 23:09:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:30,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232360391] [2024-05-04 23:09:30,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:30,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 5950 trivial. 0 not checked. [2024-05-04 23:09:31,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232360391] [2024-05-04 23:09:31,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232360391] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:31,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:31,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:09:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358078925] [2024-05-04 23:09:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:31,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:09:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:31,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:09:31,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:09:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:31,515 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:31,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.6666666666667) internal successors, (1268), 3 states have internal predecessors, (1268), 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) [2024-05-04 23:09:31,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:31,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:33,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-05-04 23:09:33,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2024-05-04 23:09:33,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:33,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1499910275, now seen corresponding path program 2 times [2024-05-04 23:09:33,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:33,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504244397] [2024-05-04 23:09:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:33,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 1015 proven. 0 refuted. 0 times theorem prover too weak. 5465 trivial. 0 not checked. [2024-05-04 23:09:35,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:35,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504244397] [2024-05-04 23:09:35,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504244397] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:35,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:35,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:09:35,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058633791] [2024-05-04 23:09:35,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:35,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:09:35,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:35,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:09:35,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:09:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:35,598 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:35,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 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) [2024-05-04 23:09:35,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:35,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:35,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:09:38,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-05-04 23:09:38,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2024-05-04 23:09:38,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:38,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1221073219, now seen corresponding path program 1 times [2024-05-04 23:09:38,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:38,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385820368] [2024-05-04 23:09:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:38,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:38,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:09:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:38,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:09:38,989 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:09:38,989 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-05-04 23:09:38,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 39 remaining) [2024-05-04 23:09:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 39 remaining) [2024-05-04 23:09:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 39 remaining) [2024-05-04 23:09:38,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 39 remaining) [2024-05-04 23:09:38,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 39 remaining) [2024-05-04 23:09:38,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 39 remaining) [2024-05-04 23:09:38,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 39 remaining) [2024-05-04 23:09:38,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 39 remaining) [2024-05-04 23:09:38,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-05-04 23:09:38,992 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:09:38,993 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:09:38,993 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-05-04 23:09:39,133 INFO L144 ThreadInstanceAdder]: Constructed 37 joinOtherThreadTransitions. [2024-05-04 23:09:39,144 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:09:39,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:09:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:09:39,148 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:09:39,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (38)] Waiting until timeout for monitored process [2024-05-04 23:09:39,172 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:09:39,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:39,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:09:39,173 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:09:39,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-05-04 23:09:39,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2024-05-04 23:09:39,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash -827373156, now seen corresponding path program 1 times [2024-05-04 23:09:39,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:39,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98284534] [2024-05-04 23:09:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:39,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 6845 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 6480 trivial. 0 not checked. [2024-05-04 23:09:40,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:40,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98284534] [2024-05-04 23:09:40,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98284534] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:40,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:40,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:09:40,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668189090] [2024-05-04 23:09:40,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:40,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:09:40,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:40,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:09:40,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:09:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:40,096 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:40,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 203.0) internal successors, (406), 2 states have internal predecessors, (406), 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) [2024-05-04 23:09:40,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:45,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-05-04 23:09:45,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2024-05-04 23:09:45,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:45,013 INFO L85 PathProgramCache]: Analyzing trace with hash 927953540, now seen corresponding path program 1 times [2024-05-04 23:09:45,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:45,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717332207] [2024-05-04 23:09:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:45,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6845 backedges. 545 proven. 0 refuted. 0 times theorem prover too weak. 6300 trivial. 0 not checked. [2024-05-04 23:09:45,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:45,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717332207] [2024-05-04 23:09:45,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717332207] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:45,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:45,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:09:45,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628841843] [2024-05-04 23:09:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:45,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:09:45,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:46,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:09:46,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:09:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:46,382 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:46,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.3333333333333) internal successors, (1303), 3 states have internal predecessors, (1303), 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) [2024-05-04 23:09:46,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:46,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:48,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:48,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-05-04 23:09:48,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2024-05-04 23:09:48,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:48,574 INFO L85 PathProgramCache]: Analyzing trace with hash 192180218, now seen corresponding path program 2 times [2024-05-04 23:09:48,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:48,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943594941] [2024-05-04 23:09:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:48,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:50,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6845 backedges. 1045 proven. 0 refuted. 0 times theorem prover too weak. 5800 trivial. 0 not checked. [2024-05-04 23:09:50,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:50,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943594941] [2024-05-04 23:09:50,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943594941] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:50,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:50,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:09:50,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979620611] [2024-05-04 23:09:50,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:50,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:09:50,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:09:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:09:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:50,994 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:50,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.16666666666666) internal successors, (1303), 6 states have internal predecessors, (1303), 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) [2024-05-04 23:09:50,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:50,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:50,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:53,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:09:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:09:53,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-05-04 23:09:53,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2024-05-04 23:09:53,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:53,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1534333625, now seen corresponding path program 1 times [2024-05-04 23:09:53,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:53,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557826235] [2024-05-04 23:09:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:53,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:53,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:09:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:09:54,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:09:54,437 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:09:54,437 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-05-04 23:09:54,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 40 remaining) [2024-05-04 23:09:54,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 40 remaining) [2024-05-04 23:09:54,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 40 remaining) [2024-05-04 23:09:54,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 40 remaining) [2024-05-04 23:09:54,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 40 remaining) [2024-05-04 23:09:54,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 40 remaining) [2024-05-04 23:09:54,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 40 remaining) [2024-05-04 23:09:54,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 40 remaining) [2024-05-04 23:09:54,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 40 remaining) [2024-05-04 23:09:54,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 40 remaining) [2024-05-04 23:09:54,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 40 remaining) [2024-05-04 23:09:54,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 40 remaining) [2024-05-04 23:09:54,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 40 remaining) [2024-05-04 23:09:54,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 40 remaining) [2024-05-04 23:09:54,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 40 remaining) [2024-05-04 23:09:54,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-05-04 23:09:54,441 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:09:54,441 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:09:54,441 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-05-04 23:09:54,694 INFO L144 ThreadInstanceAdder]: Constructed 38 joinOtherThreadTransitions. [2024-05-04 23:09:54,704 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:09:54,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:09:54,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:09:54,707 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:09:54,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (39)] Waiting until timeout for monitored process [2024-05-04 23:09:54,729 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:09:54,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:54,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:09:54,729 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:09:54,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-05-04 23:09:55,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2024-05-04 23:09:55,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1447177200, now seen corresponding path program 1 times [2024-05-04 23:09:55,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:55,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685743817] [2024-05-04 23:09:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:55,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:09:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 7220 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 6845 trivial. 0 not checked. [2024-05-04 23:09:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:09:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685743817] [2024-05-04 23:09:55,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685743817] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:09:55,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:09:55,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:09:55,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832808471] [2024-05-04 23:09:55,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:09:55,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:09:55,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:09:55,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:09:55,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:09:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:55,415 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:09:55,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 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) [2024-05-04 23:09:55,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:09:59,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-05-04 23:09:59,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2024-05-04 23:09:59,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:09:59,094 INFO L85 PathProgramCache]: Analyzing trace with hash -470521573, now seen corresponding path program 1 times [2024-05-04 23:09:59,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:09:59,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866018122] [2024-05-04 23:09:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:09:59,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:09:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 7220 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 6660 trivial. 0 not checked. [2024-05-04 23:10:00,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:00,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866018122] [2024-05-04 23:10:00,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866018122] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:00,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:00,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:10:00,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363993554] [2024-05-04 23:10:00,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:00,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:10:00,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:00,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:10:00,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:10:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:00,494 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:00,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 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) [2024-05-04 23:10:00,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:00,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:02,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-05-04 23:10:02,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2024-05-04 23:10:02,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:02,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1352471071, now seen corresponding path program 2 times [2024-05-04 23:10:02,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:02,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416902548] [2024-05-04 23:10:02,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:02,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7220 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 6145 trivial. 0 not checked. [2024-05-04 23:10:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:03,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416902548] [2024-05-04 23:10:03,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416902548] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:03,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:03,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:10:03,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998185687] [2024-05-04 23:10:03,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:03,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:10:03,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:04,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:10:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:10:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:04,448 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:04,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 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) [2024-05-04 23:10:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:10:06,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-05-04 23:10:06,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2024-05-04 23:10:06,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash 886962670, now seen corresponding path program 1 times [2024-05-04 23:10:06,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:06,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607831009] [2024-05-04 23:10:06,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:06,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:10:07,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:10:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:10:07,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:10:07,595 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:10:07,595 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-05-04 23:10:07,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 41 remaining) [2024-05-04 23:10:07,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 41 remaining) [2024-05-04 23:10:07,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 41 remaining) [2024-05-04 23:10:07,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 41 remaining) [2024-05-04 23:10:07,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 41 remaining) [2024-05-04 23:10:07,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 41 remaining) [2024-05-04 23:10:07,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 41 remaining) [2024-05-04 23:10:07,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 41 remaining) [2024-05-04 23:10:07,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 41 remaining) [2024-05-04 23:10:07,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-05-04 23:10:07,599 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:10:07,599 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:10:07,600 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-05-04 23:10:07,738 INFO L144 ThreadInstanceAdder]: Constructed 39 joinOtherThreadTransitions. [2024-05-04 23:10:07,748 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:10:07,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:10:07,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:10:07,752 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:10:07,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (40)] Waiting until timeout for monitored process [2024-05-04 23:10:07,773 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:10:07,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:07,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:10:07,774 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:10:07,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-05-04 23:10:08,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2024-05-04 23:10:08,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:08,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1776507610, now seen corresponding path program 1 times [2024-05-04 23:10:08,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:08,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853740671] [2024-05-04 23:10:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:08,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7605 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 7220 trivial. 0 not checked. [2024-05-04 23:10:08,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:08,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853740671] [2024-05-04 23:10:08,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853740671] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:08,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:08,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:10:08,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081839123] [2024-05-04 23:10:08,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:08,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:10:08,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:08,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:10:08,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:10:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:08,987 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:08,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 212.0) internal successors, (424), 2 states have internal predecessors, (424), 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) [2024-05-04 23:10:08,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:16,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:16,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-05-04 23:10:16,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2024-05-04 23:10:16,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:16,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1846851384, now seen corresponding path program 1 times [2024-05-04 23:10:16,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:16,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750879994] [2024-05-04 23:10:16,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:16,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7605 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2024-05-04 23:10:18,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:18,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750879994] [2024-05-04 23:10:18,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750879994] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:18,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:18,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:10:18,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250196197] [2024-05-04 23:10:18,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:18,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:10:18,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:10:18,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:10:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:18,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:18,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2024-05-04 23:10:18,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:18,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:21,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:21,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:21,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-05-04 23:10:21,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2024-05-04 23:10:21,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:21,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1417434328, now seen corresponding path program 2 times [2024-05-04 23:10:21,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:21,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220642158] [2024-05-04 23:10:21,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:21,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7605 backedges. 1105 proven. 0 refuted. 0 times theorem prover too weak. 6500 trivial. 0 not checked. [2024-05-04 23:10:22,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:22,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220642158] [2024-05-04 23:10:22,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220642158] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:22,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:22,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:10:22,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590378997] [2024-05-04 23:10:22,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:22,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:10:22,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:10:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:10:23,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:23,317 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:23,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 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) [2024-05-04 23:10:23,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:23,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:23,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:10:27,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-05-04 23:10:27,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2024-05-04 23:10:27,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:27,056 INFO L85 PathProgramCache]: Analyzing trace with hash 804584402, now seen corresponding path program 1 times [2024-05-04 23:10:27,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:27,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413407414] [2024-05-04 23:10:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:27,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:10:27,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:10:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:10:27,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:10:27,764 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:10:27,764 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-05-04 23:10:27,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 42 remaining) [2024-05-04 23:10:27,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 42 remaining) [2024-05-04 23:10:27,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 42 remaining) [2024-05-04 23:10:27,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 42 remaining) [2024-05-04 23:10:27,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 42 remaining) [2024-05-04 23:10:27,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 42 remaining) [2024-05-04 23:10:27,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 42 remaining) [2024-05-04 23:10:27,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 42 remaining) [2024-05-04 23:10:27,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 42 remaining) [2024-05-04 23:10:27,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 42 remaining) [2024-05-04 23:10:27,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 42 remaining) [2024-05-04 23:10:27,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-05-04 23:10:27,767 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:10:27,768 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:10:27,768 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-05-04 23:10:27,915 INFO L144 ThreadInstanceAdder]: Constructed 40 joinOtherThreadTransitions. [2024-05-04 23:10:27,923 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:10:27,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:10:27,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:10:27,925 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:10:27,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (41)] Waiting until timeout for monitored process [2024-05-04 23:10:27,948 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:10:27,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:27,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:10:27,948 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:10:27,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-05-04 23:10:29,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2024-05-04 23:10:29,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:29,749 INFO L85 PathProgramCache]: Analyzing trace with hash -904144930, now seen corresponding path program 1 times [2024-05-04 23:10:29,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:29,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501159288] [2024-05-04 23:10:29,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:29,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:29,912 INFO L134 CoverageAnalysis]: Checked inductivity of 8000 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 7605 trivial. 0 not checked. [2024-05-04 23:10:29,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:29,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501159288] [2024-05-04 23:10:29,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501159288] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:29,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:29,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:10:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446154822] [2024-05-04 23:10:29,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:29,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:10:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:29,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:10:29,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:10:29,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:29,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:29,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 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) [2024-05-04 23:10:29,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:40,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-05-04 23:10:40,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2024-05-04 23:10:40,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:40,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2111139107, now seen corresponding path program 1 times [2024-05-04 23:10:40,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:40,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090216499] [2024-05-04 23:10:40,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 8000 backedges. 590 proven. 0 refuted. 0 times theorem prover too weak. 7410 trivial. 0 not checked. [2024-05-04 23:10:41,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:41,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090216499] [2024-05-04 23:10:41,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090216499] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:41,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:41,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:10:41,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28926438] [2024-05-04 23:10:41,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:41,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:10:41,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:42,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:10:42,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:10:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:42,285 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:42,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 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) [2024-05-04 23:10:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:44,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-05-04 23:10:44,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2024-05-04 23:10:44,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:44,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2035041177, now seen corresponding path program 2 times [2024-05-04 23:10:44,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:44,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679918549] [2024-05-04 23:10:44,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:44,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:46,488 INFO L134 CoverageAnalysis]: Checked inductivity of 8000 backedges. 1135 proven. 0 refuted. 0 times theorem prover too weak. 6865 trivial. 0 not checked. [2024-05-04 23:10:46,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:46,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679918549] [2024-05-04 23:10:46,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679918549] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:46,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:46,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:10:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600085798] [2024-05-04 23:10:46,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:46,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:10:46,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:47,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:10:47,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:10:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:47,091 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:47,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.66666666666666) internal successors, (1408), 6 states have internal predecessors, (1408), 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) [2024-05-04 23:10:47,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:47,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:47,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:52,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:10:52,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:10:52,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-05-04 23:10:52,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2024-05-04 23:10:52,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:52,136 INFO L85 PathProgramCache]: Analyzing trace with hash -269382274, now seen corresponding path program 1 times [2024-05-04 23:10:52,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:52,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873736687] [2024-05-04 23:10:52,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:52,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:10:52,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:10:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:10:53,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:10:53,042 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:10:53,042 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-05-04 23:10:53,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 43 remaining) [2024-05-04 23:10:53,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 43 remaining) [2024-05-04 23:10:53,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 43 remaining) [2024-05-04 23:10:53,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 43 remaining) [2024-05-04 23:10:53,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 43 remaining) [2024-05-04 23:10:53,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 43 remaining) [2024-05-04 23:10:53,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 43 remaining) [2024-05-04 23:10:53,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 43 remaining) [2024-05-04 23:10:53,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 43 remaining) [2024-05-04 23:10:53,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 43 remaining) [2024-05-04 23:10:53,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 43 remaining) [2024-05-04 23:10:53,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 43 remaining) [2024-05-04 23:10:53,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-05-04 23:10:53,045 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:10:53,046 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:10:53,046 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-05-04 23:10:53,190 INFO L144 ThreadInstanceAdder]: Constructed 41 joinOtherThreadTransitions. [2024-05-04 23:10:53,201 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:10:53,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:10:53,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:10:53,205 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:10:53,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (42)] Waiting until timeout for monitored process [2024-05-04 23:10:53,223 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:10:53,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:53,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:10:53,224 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:10:53,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-05-04 23:10:54,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2024-05-04 23:10:54,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:10:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -478519368, now seen corresponding path program 1 times [2024-05-04 23:10:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:10:54,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792121883] [2024-05-04 23:10:54,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:10:54,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:10:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:10:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 8405 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 8000 trivial. 0 not checked. [2024-05-04 23:10:54,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:10:54,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792121883] [2024-05-04 23:10:54,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792121883] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:10:54,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:10:54,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:10:54,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339720014] [2024-05-04 23:10:54,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:10:54,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:10:54,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:10:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:10:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:10:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:10:54,749 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:10:54,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 221.0) internal successors, (442), 2 states have internal predecessors, (442), 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) [2024-05-04 23:10:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:03,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-05-04 23:11:03,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2024-05-04 23:11:03,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:03,246 INFO L85 PathProgramCache]: Analyzing trace with hash -72654166, now seen corresponding path program 1 times [2024-05-04 23:11:03,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:03,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745679372] [2024-05-04 23:11:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:03,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 8405 backedges. 605 proven. 0 refuted. 0 times theorem prover too weak. 7800 trivial. 0 not checked. [2024-05-04 23:11:04,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:04,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745679372] [2024-05-04 23:11:04,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745679372] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:04,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:04,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:11:04,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824320592] [2024-05-04 23:11:04,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:04,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:11:04,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:04,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:11:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:11:04,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:04,827 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:04,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.0) internal successors, (1443), 3 states have internal predecessors, (1443), 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) [2024-05-04 23:11:04,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:04,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:06,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:06,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-05-04 23:11:06,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2024-05-04 23:11:06,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:06,832 INFO L85 PathProgramCache]: Analyzing trace with hash -171580562, now seen corresponding path program 2 times [2024-05-04 23:11:06,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:06,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962477250] [2024-05-04 23:11:06,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:06,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:08,469 INFO L134 CoverageAnalysis]: Checked inductivity of 8405 backedges. 1165 proven. 0 refuted. 0 times theorem prover too weak. 7240 trivial. 0 not checked. [2024-05-04 23:11:08,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:08,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962477250] [2024-05-04 23:11:08,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962477250] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:08,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:08,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:11:08,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939126097] [2024-05-04 23:11:08,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:08,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:11:08,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:09,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:11:09,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:11:09,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:09,087 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:09,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.5) internal successors, (1443), 6 states have internal predecessors, (1443), 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) [2024-05-04 23:11:09,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:09,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:09,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:11:13,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-05-04 23:11:13,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2024-05-04 23:11:13,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:13,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1573852703, now seen corresponding path program 1 times [2024-05-04 23:11:13,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:13,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700408243] [2024-05-04 23:11:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:13,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:11:13,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:11:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:11:14,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:11:14,080 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 44 remaining) [2024-05-04 23:11:14,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 44 remaining) [2024-05-04 23:11:14,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 44 remaining) [2024-05-04 23:11:14,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 44 remaining) [2024-05-04 23:11:14,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-05-04 23:11:14,083 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:11:14,083 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:11:14,083 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-05-04 23:11:14,431 INFO L144 ThreadInstanceAdder]: Constructed 42 joinOtherThreadTransitions. [2024-05-04 23:11:14,439 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:11:14,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:11:14,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:11:14,441 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:11:14,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (43)] Waiting until timeout for monitored process [2024-05-04 23:11:14,461 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:11:14,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:14,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:11:14,461 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:11:14,461 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-05-04 23:11:15,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2024-05-04 23:11:15,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:15,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1467700780, now seen corresponding path program 1 times [2024-05-04 23:11:15,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:15,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089457400] [2024-05-04 23:11:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:15,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 8820 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 8405 trivial. 0 not checked. [2024-05-04 23:11:15,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:15,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089457400] [2024-05-04 23:11:15,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089457400] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:15,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:15,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:11:15,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452579854] [2024-05-04 23:11:15,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:15,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:11:15,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:15,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:11:15,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:11:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:15,996 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:15,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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) [2024-05-04 23:11:15,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:25,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-05-04 23:11:25,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2024-05-04 23:11:25,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2005297092, now seen corresponding path program 1 times [2024-05-04 23:11:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:25,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958073523] [2024-05-04 23:11:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:25,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 8820 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 8200 trivial. 0 not checked. [2024-05-04 23:11:26,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:26,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958073523] [2024-05-04 23:11:26,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958073523] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:26,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:26,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:11:26,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142649036] [2024-05-04 23:11:26,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:26,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:11:26,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:26,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:11:26,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:11:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:26,713 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:26,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 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) [2024-05-04 23:11:26,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:26,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:29,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-05-04 23:11:29,252 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2024-05-04 23:11:29,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1972710292, now seen corresponding path program 2 times [2024-05-04 23:11:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:29,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384414508] [2024-05-04 23:11:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8820 backedges. 1195 proven. 0 refuted. 0 times theorem prover too weak. 7625 trivial. 0 not checked. [2024-05-04 23:11:30,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:30,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384414508] [2024-05-04 23:11:30,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384414508] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:30,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:30,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:11:30,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993360911] [2024-05-04 23:11:30,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:30,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:11:30,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:11:31,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:11:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:31,577 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:31,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 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) [2024-05-04 23:11:31,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:31,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:31,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:11:35,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-05-04 23:11:35,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2024-05-04 23:11:35,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:35,849 INFO L85 PathProgramCache]: Analyzing trace with hash 335681219, now seen corresponding path program 1 times [2024-05-04 23:11:35,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:35,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062571118] [2024-05-04 23:11:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:35,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:11:36,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:11:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:11:36,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:11:36,617 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:11:36,617 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-05-04 23:11:36,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 45 remaining) [2024-05-04 23:11:36,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 45 remaining) [2024-05-04 23:11:36,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 45 remaining) [2024-05-04 23:11:36,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 45 remaining) [2024-05-04 23:11:36,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 45 remaining) [2024-05-04 23:11:36,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 45 remaining) [2024-05-04 23:11:36,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-05-04 23:11:36,621 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:11:36,621 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:11:36,621 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-05-04 23:11:36,948 INFO L144 ThreadInstanceAdder]: Constructed 43 joinOtherThreadTransitions. [2024-05-04 23:11:36,959 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:11:36,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:11:36,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:11:36,963 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:11:36,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (44)] Waiting until timeout for monitored process [2024-05-04 23:11:36,984 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:11:36,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:36,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:11:36,985 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:11:36,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-05-04 23:11:38,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2024-05-04 23:11:38,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1493957422, now seen corresponding path program 1 times [2024-05-04 23:11:38,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:38,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843397639] [2024-05-04 23:11:38,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:38,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9245 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 8820 trivial. 0 not checked. [2024-05-04 23:11:38,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843397639] [2024-05-04 23:11:38,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843397639] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:38,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:38,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:11:38,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072136433] [2024-05-04 23:11:38,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:38,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:11:38,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:38,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:11:38,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:11:38,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:38,862 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:38,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 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) [2024-05-04 23:11:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:50,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-05-04 23:11:50,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2024-05-04 23:11:50,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:50,260 INFO L85 PathProgramCache]: Analyzing trace with hash 957004584, now seen corresponding path program 1 times [2024-05-04 23:11:50,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:50,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580760276] [2024-05-04 23:11:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:50,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9245 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 8610 trivial. 0 not checked. [2024-05-04 23:11:51,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:51,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580760276] [2024-05-04 23:11:51,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580760276] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:51,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:51,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:11:51,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364778053] [2024-05-04 23:11:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:51,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:11:51,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:51,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:11:51,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:11:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:51,850 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:51,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 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) [2024-05-04 23:11:51,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:51,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:54,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-05-04 23:11:54,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2024-05-04 23:11:54,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:11:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash -2025744848, now seen corresponding path program 2 times [2024-05-04 23:11:54,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:11:54,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67457096] [2024-05-04 23:11:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:11:54,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:11:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:11:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 9245 backedges. 1225 proven. 0 refuted. 0 times theorem prover too weak. 8020 trivial. 0 not checked. [2024-05-04 23:11:57,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:11:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67457096] [2024-05-04 23:11:57,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67457096] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:11:57,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:11:57,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:11:57,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386348711] [2024-05-04 23:11:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:11:57,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:11:57,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:11:57,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:11:57,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:11:57,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:57,873 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:11:57,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 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) [2024-05-04 23:11:57,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:11:57,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:11:57,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:12:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:12:03,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-05-04 23:12:03,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2024-05-04 23:12:03,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:03,035 INFO L85 PathProgramCache]: Analyzing trace with hash -32862243, now seen corresponding path program 1 times [2024-05-04 23:12:03,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:03,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508302014] [2024-05-04 23:12:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:12:03,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:12:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:12:03,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:12:03,952 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 46 remaining) [2024-05-04 23:12:03,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 46 remaining) [2024-05-04 23:12:03,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 46 remaining) [2024-05-04 23:12:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 46 remaining) [2024-05-04 23:12:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 46 remaining) [2024-05-04 23:12:03,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-05-04 23:12:03,955 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:12:03,956 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:12:03,956 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2024-05-04 23:12:04,108 INFO L144 ThreadInstanceAdder]: Constructed 44 joinOtherThreadTransitions. [2024-05-04 23:12:04,116 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:12:04,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:12:04,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:12:04,119 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:12:04,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (45)] Waiting until timeout for monitored process [2024-05-04 23:12:04,142 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:12:04,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:04,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:12:04,142 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:12:04,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-05-04 23:12:05,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-05-04 23:12:05,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1694573102, now seen corresponding path program 1 times [2024-05-04 23:12:05,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:05,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3396431] [2024-05-04 23:12:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:12:05,520 INFO L134 CoverageAnalysis]: Checked inductivity of 9680 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 9245 trivial. 0 not checked. [2024-05-04 23:12:05,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:12:05,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3396431] [2024-05-04 23:12:05,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3396431] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:12:05,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:12:05,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:12:05,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482624396] [2024-05-04 23:12:05,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:12:05,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:12:05,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:12:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:12:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:12:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:05,561 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:12:05,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.5) internal successors, (469), 2 states have internal predecessors, (469), 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) [2024-05-04 23:12:05,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:13,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:13,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-05-04 23:12:13,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-05-04 23:12:13,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:13,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2097369311, now seen corresponding path program 1 times [2024-05-04 23:12:13,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:13,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123113779] [2024-05-04 23:12:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:13,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:12:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 9680 backedges. 650 proven. 0 refuted. 0 times theorem prover too weak. 9030 trivial. 0 not checked. [2024-05-04 23:12:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:12:14,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123113779] [2024-05-04 23:12:14,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123113779] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:12:14,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:12:14,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:12:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766788604] [2024-05-04 23:12:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:12:14,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:12:14,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:12:15,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:12:15,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:12:15,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:15,086 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:12:15,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 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) [2024-05-04 23:12:15,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:15,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:18,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:18,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:12:18,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-05-04 23:12:18,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-05-04 23:12:18,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:18,036 INFO L85 PathProgramCache]: Analyzing trace with hash -784963233, now seen corresponding path program 2 times [2024-05-04 23:12:18,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:18,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081880779] [2024-05-04 23:12:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:18,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:12:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 9680 backedges. 1255 proven. 0 refuted. 0 times theorem prover too weak. 8425 trivial. 0 not checked. [2024-05-04 23:12:19,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:12:19,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081880779] [2024-05-04 23:12:19,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081880779] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:12:19,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:12:19,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:12:19,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222159064] [2024-05-04 23:12:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:12:19,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:12:19,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:12:20,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:12:20,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:12:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:20,440 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:12:20,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 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) [2024-05-04 23:12:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:12:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:12:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:12:24,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2024-05-04 23:12:24,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-05-04 23:12:24,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1573243888, now seen corresponding path program 1 times [2024-05-04 23:12:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:24,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646263785] [2024-05-04 23:12:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:24,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:12:25,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:12:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:12:25,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:12:25,792 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (45 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 47 remaining) [2024-05-04 23:12:25,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 47 remaining) [2024-05-04 23:12:25,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 47 remaining) [2024-05-04 23:12:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 47 remaining) [2024-05-04 23:12:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 47 remaining) [2024-05-04 23:12:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 47 remaining) [2024-05-04 23:12:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 47 remaining) [2024-05-04 23:12:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 47 remaining) [2024-05-04 23:12:25,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-05-04 23:12:25,795 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:12:25,796 WARN L233 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:12:25,796 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2024-05-04 23:12:25,957 INFO L144 ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions. [2024-05-04 23:12:25,971 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:12:25,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:12:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:12:26,021 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:12:26,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (46)] Waiting until timeout for monitored process [2024-05-04 23:12:26,043 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:12:26,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:26,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:12:26,043 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:12:26,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-05-04 23:12:28,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2024-05-04 23:12:28,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:28,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1816931188, now seen corresponding path program 1 times [2024-05-04 23:12:28,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:28,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503984793] [2024-05-04 23:12:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:28,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:12:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10125 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 9680 trivial. 0 not checked. [2024-05-04 23:12:28,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:12:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503984793] [2024-05-04 23:12:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503984793] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:12:28,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:12:28,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:12:28,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385964382] [2024-05-04 23:12:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:12:28,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:12:28,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:12:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:12:28,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:12:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:28,316 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:12:28,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 239.0) internal successors, (478), 2 states have internal predecessors, (478), 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) [2024-05-04 23:12:28,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:42,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:42,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2024-05-04 23:12:42,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2024-05-04 23:12:42,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:42,095 INFO L85 PathProgramCache]: Analyzing trace with hash 502100890, now seen corresponding path program 1 times [2024-05-04 23:12:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:42,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104105188] [2024-05-04 23:12:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:42,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:12:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 10125 backedges. 665 proven. 0 refuted. 0 times theorem prover too weak. 9460 trivial. 0 not checked. [2024-05-04 23:12:43,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:12:43,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104105188] [2024-05-04 23:12:43,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104105188] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:12:43,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:12:43,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:12:43,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625425408] [2024-05-04 23:12:43,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:12:43,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:12:43,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:12:43,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:12:43,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:12:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:43,805 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:12:43,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 527.6666666666666) internal successors, (1583), 3 states have internal predecessors, (1583), 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) [2024-05-04 23:12:43,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:43,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:12:46,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2024-05-04 23:12:46,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2024-05-04 23:12:46,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1482604324, now seen corresponding path program 2 times [2024-05-04 23:12:46,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:46,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514064049] [2024-05-04 23:12:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:12:48,833 INFO L134 CoverageAnalysis]: Checked inductivity of 10125 backedges. 1285 proven. 0 refuted. 0 times theorem prover too weak. 8840 trivial. 0 not checked. [2024-05-04 23:12:48,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:12:48,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514064049] [2024-05-04 23:12:48,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514064049] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:12:48,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:12:48,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:12:48,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569120479] [2024-05-04 23:12:48,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:12:48,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:12:48,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:12:49,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:12:49,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:12:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:49,513 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:12:49,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 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) [2024-05-04 23:12:49,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:49,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:12:49,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:12:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:12:55,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2024-05-04 23:12:55,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2024-05-04 23:12:55,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:55,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2055046725, now seen corresponding path program 1 times [2024-05-04 23:12:55,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:55,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623314397] [2024-05-04 23:12:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:55,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:12:55,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:12:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:12:56,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:12:56,627 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:12:56,627 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-05-04 23:12:56,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (46 of 48 remaining) [2024-05-04 23:12:56,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (45 of 48 remaining) [2024-05-04 23:12:56,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 48 remaining) [2024-05-04 23:12:56,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 48 remaining) [2024-05-04 23:12:56,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 48 remaining) [2024-05-04 23:12:56,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 48 remaining) [2024-05-04 23:12:56,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 48 remaining) [2024-05-04 23:12:56,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 48 remaining) [2024-05-04 23:12:56,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 48 remaining) [2024-05-04 23:12:56,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2024-05-04 23:12:56,631 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:12:56,631 WARN L233 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:12:56,631 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2024-05-04 23:12:56,808 INFO L144 ThreadInstanceAdder]: Constructed 46 joinOtherThreadTransitions. [2024-05-04 23:12:56,820 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:12:56,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:12:56,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:12:56,824 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:12:56,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (47)] Waiting until timeout for monitored process [2024-05-04 23:12:56,846 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:12:56,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:56,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:12:56,846 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:12:56,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-05-04 23:12:59,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2024-05-04 23:12:59,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:12:59,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1405844136, now seen corresponding path program 1 times [2024-05-04 23:12:59,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:12:59,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449944441] [2024-05-04 23:12:59,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:12:59,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:12:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:12:59,274 INFO L134 CoverageAnalysis]: Checked inductivity of 10580 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 10125 trivial. 0 not checked. [2024-05-04 23:12:59,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:12:59,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449944441] [2024-05-04 23:12:59,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449944441] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:12:59,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:12:59,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:12:59,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142865963] [2024-05-04 23:12:59,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:12:59,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:12:59,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:12:59,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:12:59,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:12:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:12:59,317 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:12:59,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 243.5) internal successors, (487), 2 states have internal predecessors, (487), 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) [2024-05-04 23:12:59,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:12,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:12,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2024-05-04 23:13:12,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2024-05-04 23:13:12,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1205890734, now seen corresponding path program 1 times [2024-05-04 23:13:12,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424018710] [2024-05-04 23:13:12,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:12,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:13:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10580 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2024-05-04 23:13:14,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:13:14,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424018710] [2024-05-04 23:13:14,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424018710] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:13:14,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:13:14,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:13:14,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929459336] [2024-05-04 23:13:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:13:14,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:13:14,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:13:14,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:13:14,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:13:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:14,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:13:14,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 539.3333333333334) internal successors, (1618), 3 states have internal predecessors, (1618), 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) [2024-05-04 23:13:14,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:14,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:16,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:13:16,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2024-05-04 23:13:16,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2024-05-04 23:13:16,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1616537566, now seen corresponding path program 2 times [2024-05-04 23:13:16,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:16,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772160757] [2024-05-04 23:13:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:16,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:13:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 10580 backedges. 1315 proven. 0 refuted. 0 times theorem prover too weak. 9265 trivial. 0 not checked. [2024-05-04 23:13:19,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:13:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772160757] [2024-05-04 23:13:19,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772160757] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:13:19,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:13:19,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:13:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286181600] [2024-05-04 23:13:19,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:13:19,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:13:19,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:13:20,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:13:20,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:13:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:20,137 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:13:20,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 269.6666666666667) internal successors, (1618), 6 states have internal predecessors, (1618), 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) [2024-05-04 23:13:20,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:20,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:13:20,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:13:27,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:13:27,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2024-05-04 23:13:27,711 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2024-05-04 23:13:27,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:27,711 INFO L85 PathProgramCache]: Analyzing trace with hash 816395282, now seen corresponding path program 1 times [2024-05-04 23:13:27,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:27,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857250252] [2024-05-04 23:13:27,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:27,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:13:27,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:13:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:13:28,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:13:28,829 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:13:28,829 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (47 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (46 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (45 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 49 remaining) [2024-05-04 23:13:28,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 49 remaining) [2024-05-04 23:13:28,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 49 remaining) [2024-05-04 23:13:28,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 49 remaining) [2024-05-04 23:13:28,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 49 remaining) [2024-05-04 23:13:28,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 49 remaining) [2024-05-04 23:13:28,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 49 remaining) [2024-05-04 23:13:28,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 49 remaining) [2024-05-04 23:13:28,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 49 remaining) [2024-05-04 23:13:28,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2024-05-04 23:13:28,833 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:13:28,834 WARN L233 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:13:28,834 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2024-05-04 23:13:29,018 INFO L144 ThreadInstanceAdder]: Constructed 47 joinOtherThreadTransitions. [2024-05-04 23:13:29,032 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:13:29,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:13:29,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:13:29,039 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:13:29,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (48)] Waiting until timeout for monitored process [2024-05-04 23:13:29,060 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:13:29,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:29,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:13:29,061 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:13:29,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-05-04 23:13:30,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2024-05-04 23:13:30,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:30,938 INFO L85 PathProgramCache]: Analyzing trace with hash 692381598, now seen corresponding path program 1 times [2024-05-04 23:13:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:30,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040536854] [2024-05-04 23:13:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:30,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:13:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 11045 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 10580 trivial. 0 not checked. [2024-05-04 23:13:31,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:13:31,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040536854] [2024-05-04 23:13:31,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040536854] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:13:31,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:13:31,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:13:31,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175941572] [2024-05-04 23:13:31,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:13:31,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:13:31,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:13:31,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:13:31,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:13:31,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:31,204 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:13:31,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 248.0) internal successors, (496), 2 states have internal predecessors, (496), 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) [2024-05-04 23:13:31,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:43,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:43,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2024-05-04 23:13:43,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2024-05-04 23:13:43,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:43,661 INFO L85 PathProgramCache]: Analyzing trace with hash -325833547, now seen corresponding path program 1 times [2024-05-04 23:13:43,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:43,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885574700] [2024-05-04 23:13:43,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:43,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:13:44,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11045 backedges. 695 proven. 0 refuted. 0 times theorem prover too weak. 10350 trivial. 0 not checked. [2024-05-04 23:13:44,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:13:44,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885574700] [2024-05-04 23:13:44,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885574700] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:13:44,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:13:44,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:13:44,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338443317] [2024-05-04 23:13:44,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:13:44,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:13:44,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:13:45,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:13:45,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:13:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:45,522 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:13:45,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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) [2024-05-04 23:13:45,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:45,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:13:47,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2024-05-04 23:13:47,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2024-05-04 23:13:47,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1080858111, now seen corresponding path program 2 times [2024-05-04 23:13:47,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:47,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164559971] [2024-05-04 23:13:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:47,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:13:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 11045 backedges. 1345 proven. 0 refuted. 0 times theorem prover too weak. 9700 trivial. 0 not checked. [2024-05-04 23:13:49,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:13:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164559971] [2024-05-04 23:13:49,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164559971] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:13:49,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:13:49,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:13:49,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573694932] [2024-05-04 23:13:49,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:13:49,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:13:49,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:13:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:13:50,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:13:50,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:50,273 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:13:50,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2024-05-04 23:13:50,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:50,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:13:50,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:13:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:13:56,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2024-05-04 23:13:56,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2024-05-04 23:13:56,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:56,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1285810647, now seen corresponding path program 1 times [2024-05-04 23:13:56,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:56,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576563637] [2024-05-04 23:13:56,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:56,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:13:56,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:13:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:13:57,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:13:57,433 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:13:57,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-05-04 23:13:57,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (48 of 50 remaining) [2024-05-04 23:13:57,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (47 of 50 remaining) [2024-05-04 23:13:57,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (46 of 50 remaining) [2024-05-04 23:13:57,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (45 of 50 remaining) [2024-05-04 23:13:57,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 50 remaining) [2024-05-04 23:13:57,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 50 remaining) [2024-05-04 23:13:57,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 50 remaining) [2024-05-04 23:13:57,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 50 remaining) [2024-05-04 23:13:57,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2024-05-04 23:13:57,437 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:13:57,437 WARN L233 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:13:57,437 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2024-05-04 23:13:57,612 INFO L144 ThreadInstanceAdder]: Constructed 48 joinOtherThreadTransitions. [2024-05-04 23:13:57,622 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:13:57,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:13:57,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:13:57,626 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:13:57,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (49)] Waiting until timeout for monitored process [2024-05-04 23:13:57,644 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:13:57,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:57,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:13:57,646 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:13:57,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-05-04 23:13:59,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2024-05-04 23:13:59,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:13:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1574827034, now seen corresponding path program 1 times [2024-05-04 23:13:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:13:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692878927] [2024-05-04 23:13:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:13:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:13:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:13:59,766 INFO L134 CoverageAnalysis]: Checked inductivity of 11520 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 11045 trivial. 0 not checked. [2024-05-04 23:13:59,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:13:59,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692878927] [2024-05-04 23:13:59,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692878927] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:13:59,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:13:59,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:13:59,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415883740] [2024-05-04 23:13:59,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:13:59,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:13:59,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:13:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:13:59,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:13:59,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:13:59,806 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:13:59,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 252.5) internal successors, (505), 2 states have internal predecessors, (505), 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) [2024-05-04 23:13:59,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:13,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2024-05-04 23:14:13,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2024-05-04 23:14:13,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:14:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1033050793, now seen corresponding path program 1 times [2024-05-04 23:14:13,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:14:13,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986515257] [2024-05-04 23:14:13,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:14:13,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:14:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:14:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 11520 backedges. 710 proven. 0 refuted. 0 times theorem prover too weak. 10810 trivial. 0 not checked. [2024-05-04 23:14:14,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:14:14,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986515257] [2024-05-04 23:14:14,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986515257] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:14:14,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:14:14,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:14:14,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215323225] [2024-05-04 23:14:14,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:14:14,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:14:14,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:14:15,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:14:15,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:14:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:15,173 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:14:15,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 3 states have internal predecessors, (1688), 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) [2024-05-04 23:14:15,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:15,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:17,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:17,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:14:17,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2024-05-04 23:14:17,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2024-05-04 23:14:17,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:14:17,959 INFO L85 PathProgramCache]: Analyzing trace with hash 820207443, now seen corresponding path program 2 times [2024-05-04 23:14:17,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:14:17,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188852785] [2024-05-04 23:14:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:14:17,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:14:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:14:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11520 backedges. 1375 proven. 0 refuted. 0 times theorem prover too weak. 10145 trivial. 0 not checked. [2024-05-04 23:14:20,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:14:20,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188852785] [2024-05-04 23:14:20,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188852785] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:14:20,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:14:20,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:14:20,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876423528] [2024-05-04 23:14:20,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:14:20,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:14:20,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:14:20,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:14:20,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:14:20,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:20,814 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:14:20,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 281.3333333333333) internal successors, (1688), 6 states have internal predecessors, (1688), 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) [2024-05-04 23:14:20,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:20,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:14:20,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:14:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:14:27,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2024-05-04 23:14:27,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2024-05-04 23:14:27,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:14:27,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1891840832, now seen corresponding path program 1 times [2024-05-04 23:14:27,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:14:27,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946570342] [2024-05-04 23:14:27,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:14:27,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:14:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:14:27,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:14:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:14:28,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:14:28,549 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (49 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (48 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (47 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (46 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (45 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 51 remaining) [2024-05-04 23:14:28,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 51 remaining) [2024-05-04 23:14:28,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 51 remaining) [2024-05-04 23:14:28,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 51 remaining) [2024-05-04 23:14:28,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 51 remaining) [2024-05-04 23:14:28,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2024-05-04 23:14:28,553 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:14:28,553 WARN L233 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:14:28,553 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2024-05-04 23:14:28,744 INFO L144 ThreadInstanceAdder]: Constructed 49 joinOtherThreadTransitions. [2024-05-04 23:14:28,757 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:14:28,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:14:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:14:28,764 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:14:28,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (50)] Waiting until timeout for monitored process [2024-05-04 23:14:28,785 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:14:28,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:14:28,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:14:28,786 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:14:28,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-05-04 23:14:32,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2024-05-04 23:14:32,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:14:32,196 INFO L85 PathProgramCache]: Analyzing trace with hash 957339472, now seen corresponding path program 1 times [2024-05-04 23:14:32,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:14:32,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522342001] [2024-05-04 23:14:32,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:14:32,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:14:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:14:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 12005 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 11520 trivial. 0 not checked. [2024-05-04 23:14:32,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:14:32,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522342001] [2024-05-04 23:14:32,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522342001] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:14:32,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:14:32,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:14:32,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882507947] [2024-05-04 23:14:32,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:14:32,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:14:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:14:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:14:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:14:32,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:32,458 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:14:32,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 257.0) internal successors, (514), 2 states have internal predecessors, (514), 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) [2024-05-04 23:14:32,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:54,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:54,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2024-05-04 23:14:54,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2024-05-04 23:14:54,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:14:54,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1992841721, now seen corresponding path program 1 times [2024-05-04 23:14:54,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:14:54,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210686850] [2024-05-04 23:14:54,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:14:54,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:14:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:14:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 12005 backedges. 725 proven. 0 refuted. 0 times theorem prover too weak. 11280 trivial. 0 not checked. [2024-05-04 23:14:55,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:14:55,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210686850] [2024-05-04 23:14:55,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210686850] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:14:55,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:14:55,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:14:55,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075212910] [2024-05-04 23:14:55,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:14:55,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:14:55,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:14:56,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:14:56,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:14:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:56,254 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:14:56,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 574.3333333333334) internal successors, (1723), 3 states have internal predecessors, (1723), 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) [2024-05-04 23:14:56,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:14:56,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:15:00,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2024-05-04 23:15:00,456 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2024-05-04 23:15:00,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash 366533041, now seen corresponding path program 2 times [2024-05-04 23:15:00,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:15:00,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782236178] [2024-05-04 23:15:00,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:15:00,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:15:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:15:02,739 INFO L134 CoverageAnalysis]: Checked inductivity of 12005 backedges. 1405 proven. 0 refuted. 0 times theorem prover too weak. 10600 trivial. 0 not checked. [2024-05-04 23:15:02,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:15:02,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782236178] [2024-05-04 23:15:02,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782236178] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:15:02,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:15:02,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:15:02,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559435159] [2024-05-04 23:15:02,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:15:02,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:15:02,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:15:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:15:03,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:15:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:03,479 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:15:03,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 287.1666666666667) internal successors, (1723), 6 states have internal predecessors, (1723), 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) [2024-05-04 23:15:03,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:03,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:15:03,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:15:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:15:12,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2024-05-04 23:15:12,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2024-05-04 23:15:12,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:12,620 INFO L85 PathProgramCache]: Analyzing trace with hash -337114003, now seen corresponding path program 1 times [2024-05-04 23:15:12,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:15:12,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398527254] [2024-05-04 23:15:12,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:15:12,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:15:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:15:12,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:15:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:15:13,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:15:13,827 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:15:13,827 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (50 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (49 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (48 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (47 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (46 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (45 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 52 remaining) [2024-05-04 23:15:13,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 52 remaining) [2024-05-04 23:15:13,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 52 remaining) [2024-05-04 23:15:13,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 52 remaining) [2024-05-04 23:15:13,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 52 remaining) [2024-05-04 23:15:13,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 52 remaining) [2024-05-04 23:15:13,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 52 remaining) [2024-05-04 23:15:13,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 52 remaining) [2024-05-04 23:15:13,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2024-05-04 23:15:13,831 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:15:13,832 WARN L233 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:15:13,832 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2024-05-04 23:15:14,008 INFO L144 ThreadInstanceAdder]: Constructed 50 joinOtherThreadTransitions. [2024-05-04 23:15:14,018 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:15:14,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:15:14,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:15:14,020 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:15:14,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (51)] Waiting until timeout for monitored process [2024-05-04 23:15:14,043 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:15:14,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:14,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:15:14,043 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:15:14,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-05-04 23:15:16,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2024-05-04 23:15:16,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:16,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1419243516, now seen corresponding path program 1 times [2024-05-04 23:15:16,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:15:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846955987] [2024-05-04 23:15:16,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:15:16,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:15:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:15:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 12500 backedges. 495 proven. 0 refuted. 0 times theorem prover too weak. 12005 trivial. 0 not checked. [2024-05-04 23:15:16,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:15:16,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846955987] [2024-05-04 23:15:16,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846955987] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:15:16,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:15:16,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:15:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217602687] [2024-05-04 23:15:16,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:15:16,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:15:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:15:16,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:15:16,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:15:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:16,534 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:15:16,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 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) [2024-05-04 23:15:16,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:31,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2024-05-04 23:15:31,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2024-05-04 23:15:31,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:31,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1730498034, now seen corresponding path program 1 times [2024-05-04 23:15:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:15:31,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710160938] [2024-05-04 23:15:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:15:31,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:15:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:15:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12500 backedges. 740 proven. 0 refuted. 0 times theorem prover too weak. 11760 trivial. 0 not checked. [2024-05-04 23:15:33,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:15:33,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710160938] [2024-05-04 23:15:33,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710160938] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:15:33,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:15:33,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-04 23:15:33,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835019209] [2024-05-04 23:15:33,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:15:33,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-04 23:15:33,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:15:34,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-04 23:15:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-04 23:15:34,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:34,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:15:34,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.0) internal successors, (1758), 3 states have internal predecessors, (1758), 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) [2024-05-04 23:15:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:37,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:15:37,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2024-05-04 23:15:37,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2024-05-04 23:15:37,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1480271208, now seen corresponding path program 2 times [2024-05-04 23:15:37,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:15:37,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471983003] [2024-05-04 23:15:37,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:15:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:15:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:15:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 12500 backedges. 1435 proven. 0 refuted. 0 times theorem prover too weak. 11065 trivial. 0 not checked. [2024-05-04 23:15:39,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:15:39,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471983003] [2024-05-04 23:15:39,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471983003] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:15:39,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:15:39,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-04 23:15:39,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458083703] [2024-05-04 23:15:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:15:39,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-04 23:15:39,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:15:40,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-04 23:15:40,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-05-04 23:15:40,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:40,483 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:15:40,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 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) [2024-05-04 23:15:40,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:40,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:15:40,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-04 23:15:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-04 23:15:47,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2024-05-04 23:15:47,516 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2024-05-04 23:15:47,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1167180302, now seen corresponding path program 1 times [2024-05-04 23:15:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:15:47,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645733767] [2024-05-04 23:15:47,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:15:47,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:15:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:15:47,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-04 23:15:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-04 23:15:48,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-04 23:15:48,799 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-04 23:15:48,799 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-05-04 23:15:48,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (51 of 53 remaining) [2024-05-04 23:15:48,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (50 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (49 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (48 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (47 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (46 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (45 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (44 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (42 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (41 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (40 of 53 remaining) [2024-05-04 23:15:48,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (39 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (35 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (34 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (33 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 53 remaining) [2024-05-04 23:15:48,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 53 remaining) [2024-05-04 23:15:48,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 53 remaining) [2024-05-04 23:15:48,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 53 remaining) [2024-05-04 23:15:48,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 53 remaining) [2024-05-04 23:15:48,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2024-05-04 23:15:48,805 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-05-04 23:15:48,805 WARN L233 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-04 23:15:48,805 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2024-05-04 23:15:49,020 INFO L144 ThreadInstanceAdder]: Constructed 51 joinOtherThreadTransitions. [2024-05-04 23:15:49,031 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 23:15:49,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 23:15:49,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 23:15:49,034 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 23:15:49,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (52)] Waiting until timeout for monitored process [2024-05-04 23:15:49,054 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 23:15:49,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:49,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 23:15:49,054 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=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;@329ed13b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 23:15:49,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2024-05-04 23:15:52,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2024-05-04 23:15:52,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 23:15:52,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1798805514, now seen corresponding path program 1 times [2024-05-04 23:15:52,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 23:15:52,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170885665] [2024-05-04 23:15:52,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 23:15:52,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 23:15:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 23:15:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 13005 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 12500 trivial. 0 not checked. [2024-05-04 23:15:53,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 23:15:53,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170885665] [2024-05-04 23:15:53,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170885665] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 23:15:53,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 23:15:53,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-04 23:15:53,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689595864] [2024-05-04 23:15:53,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 23:15:53,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-04 23:15:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 23:15:53,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-04 23:15:53,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-04 23:15:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 23:15:53,275 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 23:15:53,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 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) [2024-05-04 23:15:53,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.