/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONLY_ONE_CEGAR --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-08 09:48:37,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-08 09:48:37,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-08 09:48:37,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-08 09:48:37,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-08 09:48:37,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-08 09:48:37,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-08 09:48:37,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-08 09:48:37,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-08 09:48:37,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-08 09:48:37,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-08 09:48:37,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-08 09:48:37,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-08 09:48:37,097 INFO L153 SettingsManager]: * Use SBE=true [2023-09-08 09:48:37,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-08 09:48:37,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-08 09:48:37,097 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-08 09:48:37,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-08 09:48:37,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-08 09:48:37,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-08 09:48:37,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-08 09:48:37,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-08 09:48:37,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-08 09:48:37,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-08 09:48:37,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-08 09:48:37,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-08 09:48:37,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-08 09:48:37,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-08 09:48:37,099 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-08 09:48:37,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-08 09:48:37,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 09:48:37,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-08 09:48:37,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-08 09:48:37,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-08 09:48:37,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-08 09:48:37,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-08 09:48:37,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-08 09:48:37,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-08 09:48:37,101 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-08 09:48:37,101 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-08 09:48:37,101 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/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL [2023-09-08 09:48:37,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-08 09:48:37,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-08 09:48:37,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-08 09:48:37,323 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-08 09:48:37,324 INFO L274 PluginConnector]: CDTParser initialized [2023-09-08 09:48:37,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-09-08 09:48:38,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-08 09:48:38,500 INFO L384 CDTParser]: Found 1 translation units. [2023-09-08 09:48:38,500 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-09-08 09:48:38,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9346db0/0a245be483f040fb8571056af9de247a/FLAG6cb505af1 [2023-09-08 09:48:38,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9346db0/0a245be483f040fb8571056af9de247a [2023-09-08 09:48:38,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-08 09:48:38,520 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-08 09:48:38,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-08 09:48:38,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-08 09:48:38,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-08 09:48:38,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533307b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38, skipping insertion in model container [2023-09-08 09:48:38,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,548 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-08 09:48:38,655 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2023-09-08 09:48:38,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 09:48:38,670 INFO L202 MainTranslator]: Completed pre-run [2023-09-08 09:48:38,685 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2023-09-08 09:48:38,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 09:48:38,693 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 09:48:38,693 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 09:48:38,698 INFO L206 MainTranslator]: Completed translation [2023-09-08 09:48:38,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38 WrapperNode [2023-09-08 09:48:38,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-08 09:48:38,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-08 09:48:38,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-08 09:48:38,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-08 09:48:38,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,726 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-09-08 09:48:38,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-08 09:48:38,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-08 09:48:38,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-08 09:48:38,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-08 09:48:38,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-08 09:48:38,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-08 09:48:38,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-08 09:48:38,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-08 09:48:38,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (1/1) ... [2023-09-08 09:48:38,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 09:48:38,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 09:48:38,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-08 09:48:38,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-08 09:48:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-08 09:48:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-08 09:48:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-08 09:48:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-08 09:48:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-08 09:48:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-08 09:48:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-08 09:48:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-08 09:48:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-08 09:48:38,801 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-08 09:48:38,870 INFO L236 CfgBuilder]: Building ICFG [2023-09-08 09:48:38,872 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-08 09:48:39,081 INFO L277 CfgBuilder]: Performing block encoding [2023-09-08 09:48:39,117 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-08 09:48:39,117 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-09-08 09:48:39,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:48:39 BoogieIcfgContainer [2023-09-08 09:48:39,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-08 09:48:39,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-08 09:48:39,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-08 09:48:39,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-08 09:48:39,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:48:38" (1/3) ... [2023-09-08 09:48:39,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7035d505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:48:39, skipping insertion in model container [2023-09-08 09:48:39,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:48:38" (2/3) ... [2023-09-08 09:48:39,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7035d505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:48:39, skipping insertion in model container [2023-09-08 09:48:39,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:48:39" (3/3) ... [2023-09-08 09:48:39,132 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2023-09-08 09:48:39,137 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-08 09:48:39,143 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-08 09:48:39,143 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-08 09:48:39,143 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-08 09:48:39,196 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-08 09:48:39,233 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 09:48:39,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-08 09:48:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 09:48:39,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-08 09:48:39,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-08 09:48:39,275 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-08 09:48:39,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-08 09:48:39,284 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a99b529, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 09:48:39,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-09-08 09:48:39,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:48:39,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:48:39,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1911657953, now seen corresponding path program 1 times [2023-09-08 09:48:39,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:48:39,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302071507] [2023-09-08 09:48:39,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:48:39,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 09:48:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 09:48:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 09:48:39,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 09:48:39,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302071507] [2023-09-08 09:48:39,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302071507] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 09:48:39,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 09:48:39,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-08 09:48:39,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354017799] [2023-09-08 09:48:39,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 09:48:39,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-08 09:48:39,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 09:48:39,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-08 09:48:39,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-08 09:48:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:39,742 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 09:48:39,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2023-09-08 09:48:39,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:39,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:39,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-08 09:48:39,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:48:39,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:48:39,803 INFO L85 PathProgramCache]: Analyzing trace with hash 110311817, now seen corresponding path program 1 times [2023-09-08 09:48:39,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:48:39,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859902591] [2023-09-08 09:48:39,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:48:39,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 09:48:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 09:48:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 09:48:40,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 09:48:40,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859902591] [2023-09-08 09:48:40,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859902591] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 09:48:40,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 09:48:40,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-08 09:48:40,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420188038] [2023-09-08 09:48:40,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 09:48:40,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-08 09:48:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 09:48:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-08 09:48:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-09-08 09:48:40,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:40,571 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 09:48:40,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2023-09-08 09:48:40,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:40,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:40,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-08 09:48:40,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:48:40,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:48:40,810 INFO L85 PathProgramCache]: Analyzing trace with hash -177490654, now seen corresponding path program 1 times [2023-09-08 09:48:40,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:48:40,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751926925] [2023-09-08 09:48:40,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:48:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 09:48:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 09:48:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-08 09:48:41,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 09:48:41,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751926925] [2023-09-08 09:48:41,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751926925] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 09:48:41,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 09:48:41,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-08 09:48:41,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927894479] [2023-09-08 09:48:41,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 09:48:41,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-08 09:48:41,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 09:48:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-08 09:48:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-08 09:48:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,050 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 09:48:41,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-09-08 09:48:41,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:41,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:41,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:41,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-08 09:48:41,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:48:41,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:48:41,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1429088988, now seen corresponding path program 2 times [2023-09-08 09:48:41,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:48:41,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345465915] [2023-09-08 09:48:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:48:41,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 09:48:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 09:48:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-08 09:48:41,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 09:48:41,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345465915] [2023-09-08 09:48:41,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345465915] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 09:48:41,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 09:48:41,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-08 09:48:41,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849333982] [2023-09-08 09:48:41,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 09:48:41,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-08 09:48:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 09:48:41,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-08 09:48:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-08 09:48:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,563 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 09:48:41,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-09-08 09:48:41,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:41,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:41,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-08 09:48:41,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-08 09:48:41,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:48:41,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:48:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 235395727, now seen corresponding path program 1 times [2023-09-08 09:48:41,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:48:41,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003247184] [2023-09-08 09:48:41,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:48:41,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 09:48:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 09:48:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-09-08 09:48:42,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 09:48:42,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003247184] [2023-09-08 09:48:42,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003247184] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 09:48:42,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 09:48:42,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-08 09:48:42,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530960367] [2023-09-08 09:48:42,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 09:48:42,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-08 09:48:42,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 09:48:42,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-08 09:48:42,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-08 09:48:42,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 09:48:42,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2023-09-08 09:48:42,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:42,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:42,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-08 09:48:42,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-08 09:48:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:42,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-08 09:48:42,318 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:48:42,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:48:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1720472255, now seen corresponding path program 2 times [2023-09-08 09:48:42,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:48:42,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4607604] [2023-09-08 09:48:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:48:42,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 09:48:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 09:48:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-09-08 09:48:42,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 09:48:42,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4607604] [2023-09-08 09:48:42,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4607604] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 09:48:42,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 09:48:42,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-08 09:48:42,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238190918] [2023-09-08 09:48:42,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 09:48:42,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-08 09:48:42,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 09:48:42,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-08 09:48:42,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-08 09:48:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,734 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 09:48:42,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2023-09-08 09:48:42,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:42,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:42,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-08 09:48:42,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:42,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-08 09:48:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-08 09:48:42,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-08 09:48:42,849 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:48:42,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:48:42,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1080957244, now seen corresponding path program 3 times [2023-09-08 09:48:42,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:48:42,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25773425] [2023-09-08 09:48:42,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:48:42,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 09:48:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 09:48:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 54 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-08 09:48:45,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 09:48:45,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25773425] [2023-09-08 09:48:45,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25773425] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 09:48:45,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378476982] [2023-09-08 09:48:45,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-08 09:48:45,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 09:48:45,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 09:48:45,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 09:48:45,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-08 09:48:45,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-09-08 09:48:45,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-08 09:48:45,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 17 conjunts are in the unsatisfiable core [2023-09-08 09:48:45,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 09:48:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 61 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-09-08 09:48:46,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 09:48:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 51 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-09-08 09:48:47,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378476982] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-08 09:48:47,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-08 09:48:47,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 14] total 35 [2023-09-08 09:48:47,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367109543] [2023-09-08 09:48:47,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-08 09:48:47,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-09-08 09:48:47,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 09:48:47,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-09-08 09:48:47,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2023-09-08 09:48:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:47,078 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 09:48:47,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.314285714285714) internal successors, (151), 35 states have internal predecessors, (151), 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) [2023-09-08 09:48:47,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:48:47,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:48:47,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:47,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-08 09:48:47,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:48:47,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-09-08 09:48:47,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:49:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 09:49:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-08 09:49:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:49:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-08 09:49:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 09:49:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-08 09:49:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 328 states. [2023-09-08 09:49:14,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-08 09:49:14,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-09-08 09:49:14,811 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 09:49:14,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 09:49:14,812 INFO L85 PathProgramCache]: Analyzing trace with hash -817325051, now seen corresponding path program 4 times [2023-09-08 09:49:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 09:49:14,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408470333] [2023-09-08 09:49:14,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 09:49:14,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms