/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-9d61ce8-m [2023-09-06 19:19:54,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-06 19:19:54,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-06 19:19:54,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-06 19:19:54,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-06 19:19:54,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-06 19:19:55,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-06 19:19:55,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-06 19:19:55,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-06 19:19:55,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-06 19:19:55,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-06 19:19:55,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-06 19:19:55,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-06 19:19:55,041 INFO L153 SettingsManager]: * Use SBE=true [2023-09-06 19:19:55,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-06 19:19:55,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-06 19:19:55,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-06 19:19:55,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-06 19:19:55,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-06 19:19:55,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-06 19:19:55,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-06 19:19:55,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-06 19:19:55,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-06 19:19:55,044 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-06 19:19:55,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-06 19:19:55,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-06 19:19:55,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-06 19:19:55,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-06 19:19:55,045 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-06 19:19:55,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-06 19:19:55,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-06 19:19:55,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-06 19:19:55,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-06 19:19:55,046 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-06 19:19:55,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-06 19:19:55,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-06 19:19:55,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-06 19:19:55,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-06 19:19:55,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-06 19:19:55,047 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-06 19:19:55,047 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-06 19:19:55,048 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-09-06 19:19:55,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-06 19:19:55,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-06 19:19:55,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-06 19:19:55,260 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-06 19:19:55,260 INFO L274 PluginConnector]: CDTParser initialized [2023-09-06 19:19:55,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2023-09-06 19:19:56,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-06 19:19:56,540 INFO L384 CDTParser]: Found 1 translation units. [2023-09-06 19:19:56,540 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2023-09-06 19:19:56,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016b3673d/ac1be723bcdc4281aac1b41a17f1caf1/FLAGf0ad9e24a [2023-09-06 19:19:56,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016b3673d/ac1be723bcdc4281aac1b41a17f1caf1 [2023-09-06 19:19:56,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-06 19:19:56,571 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-06 19:19:56,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-06 19:19:56,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-06 19:19:56,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-06 19:19:56,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785a2763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56, skipping insertion in model container [2023-09-06 19:19:56,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,609 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-06 19:19:56,762 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/parallel-parallel-sum-2.wvr.c[4225,4238] [2023-09-06 19:19:56,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-06 19:19:56,783 INFO L202 MainTranslator]: Completed pre-run [2023-09-06 19:19:56,810 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/parallel-parallel-sum-2.wvr.c[4225,4238] [2023-09-06 19:19:56,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-06 19:19:56,821 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-06 19:19:56,821 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-06 19:19:56,827 INFO L206 MainTranslator]: Completed translation [2023-09-06 19:19:56,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56 WrapperNode [2023-09-06 19:19:56,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-06 19:19:56,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-06 19:19:56,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-06 19:19:56,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-06 19:19:56,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,885 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 404 [2023-09-06 19:19:56,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-06 19:19:56,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-06 19:19:56,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-06 19:19:56,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-06 19:19:56,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-06 19:19:56,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-06 19:19:56,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-06 19:19:56,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-06 19:19:56,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (1/1) ... [2023-09-06 19:19:56,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-06 19:19:56,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 19:19:56,947 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) [2023-09-06 19:19:56,958 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 [2023-09-06 19:19:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-06 19:19:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-06 19:19:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-06 19:19:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-06 19:19:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-09-06 19:19:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-06 19:19:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-09-06 19:19:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-09-06 19:19:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-09-06 19:19:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-09-06 19:19:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-06 19:19:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-06 19:19:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-06 19:19:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-06 19:19:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-06 19:19:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-06 19:19:56,980 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-06 19:19:57,101 INFO L236 CfgBuilder]: Building ICFG [2023-09-06 19:19:57,102 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-06 19:19:57,528 INFO L277 CfgBuilder]: Performing block encoding [2023-09-06 19:19:57,752 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-06 19:19:57,753 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-09-06 19:19:57,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 07:19:57 BoogieIcfgContainer [2023-09-06 19:19:57,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-06 19:19:57,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-06 19:19:57,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-06 19:19:57,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-06 19:19:57,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.09 07:19:56" (1/3) ... [2023-09-06 19:19:57,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704d55c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.09 07:19:57, skipping insertion in model container [2023-09-06 19:19:57,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 07:19:56" (2/3) ... [2023-09-06 19:19:57,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704d55c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.09 07:19:57, skipping insertion in model container [2023-09-06 19:19:57,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 07:19:57" (3/3) ... [2023-09-06 19:19:57,765 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2023-09-06 19:19:57,772 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-06 19:19:57,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-06 19:19:57,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-06 19:19:57,779 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-06 19:19:57,897 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-09-06 19:19:57,946 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-06 19:19:57,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-06 19:19:57,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 19:19:57,949 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) [2023-09-06 19:19:57,954 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 [2023-09-06 19:19:57,995 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-06 19:19:58,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-06 19:19:58,006 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;@a850fd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-06 19:19:58,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. Found a loop, use abstraction hammer [2023-09-06 19:19:58,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-06 19:19:58,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-06 19:19:58,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2098537775, now seen corresponding path program 1 times [2023-09-06 19:19:58,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-06 19:19:58,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158297522] [2023-09-06 19:19:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 19:19:58,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-06 19:19:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-06 19:19:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-06 19:19:58,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-06 19:19:58,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158297522] [2023-09-06 19:19:58,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158297522] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-06 19:19:58,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-06 19:19:58,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-06 19:19:58,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143334816] [2023-09-06 19:19:58,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-06 19:19:58,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-06 19:19:58,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-06 19:19:58,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-06 19:19:58,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-06 19:19:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:19:58,526 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-06 19:19:58,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.5) internal successors, (219), 2 states have internal predecessors, (219), 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) [2023-09-06 19:19:58,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-06 19:19:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:19:58,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-06 19:19:58,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-06 19:19:58,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-06 19:19:58,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1682331058, now seen corresponding path program 1 times [2023-09-06 19:19:58,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-06 19:19:58,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545044613] [2023-09-06 19:19:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 19:19:58,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-06 19:19:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-06 19:20:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-06 19:20:00,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-06 19:20:00,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545044613] [2023-09-06 19:20:00,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545044613] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-06 19:20:00,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-06 19:20:00,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-06 19:20:00,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015169228] [2023-09-06 19:20:00,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-06 19:20:00,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-06 19:20:00,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-06 19:20:00,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-06 19:20:00,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-09-06 19:20:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:20:00,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-06 19:20:00,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 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) [2023-09-06 19:20:00,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:20:00,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-06 19:20:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:20:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-06 19:20:01,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-06 19:20:01,264 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-06 19:20:01,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-06 19:20:01,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1163487008, now seen corresponding path program 1 times [2023-09-06 19:20:01,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-06 19:20:01,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500910276] [2023-09-06 19:20:01,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 19:20:01,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-06 19:20:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-06 19:20:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-06 19:20:02,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-06 19:20:02,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500910276] [2023-09-06 19:20:02,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500910276] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-06 19:20:02,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111565783] [2023-09-06 19:20:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 19:20:02,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-06 19:20:02,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 19:20:02,159 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) [2023-09-06 19:20:02,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-06 19:20:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-06 19:20:02,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 16 conjunts are in the unsatisfiable core [2023-09-06 19:20:02,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-06 19:20:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-06 19:20:02,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-06 19:20:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-06 19:20:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111565783] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-06 19:20:03,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-06 19:20:03,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 29 [2023-09-06 19:20:03,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661742544] [2023-09-06 19:20:03,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-06 19:20:03,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-09-06 19:20:03,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-06 19:20:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-09-06 19:20:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2023-09-06 19:20:03,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:20:03,285 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-06 19:20:03,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 17.103448275862068) internal successors, (496), 29 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) [2023-09-06 19:20:03,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:20:03,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-06 19:20:03,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-06 19:23:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:23:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-06 19:23:55,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-09-06 19:23:55,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-06 19:23:55,983 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,SelfDestructingSolverStorable2 [2023-09-06 19:23:55,983 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-06 19:23:55,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-06 19:23:55,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1556121538, now seen corresponding path program 1 times [2023-09-06 19:23:55,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-06 19:23:55,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750455878] [2023-09-06 19:23:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 19:23:55,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-06 19:23:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-06 19:23:56,971 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-06 19:23:56,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-06 19:23:56,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750455878] [2023-09-06 19:23:56,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750455878] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-06 19:23:56,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892427953] [2023-09-06 19:23:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 19:23:56,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-06 19:23:56,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 19:23:56,977 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-06 19:23:56,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-06 19:23:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-06 19:23:57,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 19 conjunts are in the unsatisfiable core [2023-09-06 19:23:57,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-06 19:23:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-06 19:23:57,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-06 19:23:58,411 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-06 19:23:58,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892427953] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-06 19:23:58,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-06 19:23:58,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 16] total 43 [2023-09-06 19:23:58,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043082843] [2023-09-06 19:23:58,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-06 19:23:58,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-09-06 19:23:58,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-06 19:23:58,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-09-06 19:23:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1627, Unknown=0, NotChecked=0, Total=1806 [2023-09-06 19:23:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:23:58,415 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-06 19:23:58,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 13.813953488372093) internal successors, (594), 43 states have internal predecessors, (594), 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) [2023-09-06 19:23:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-06 19:23:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-06 19:23:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2023-09-06 19:23:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Received shutdown request... [2023-09-06 19:24:30,285 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-06 19:24:30,285 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-06 19:24:30,285 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-06 19:24:30,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-06 19:24:30,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-06 19:24:30,531 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2023-09-06 19:24:30,533 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-09-06 19:24:30,534 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 11 remaining) [2023-09-06 19:24:30,534 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-09-06 19:24:30,534 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2023-09-06 19:24:30,534 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2023-09-06 19:24:30,535 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2023-09-06 19:24:30,535 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-09-06 19:24:30,535 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork4Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2023-09-06 19:24:30,535 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork4Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-09-06 19:24:30,535 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-09-06 19:24:30,535 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-09-06 19:24:30,566 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-06 19:24:30,568 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-06 19:24:30,568 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-06 19:24:30,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.09 07:24:30 BasicIcfg [2023-09-06 19:24:30,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-06 19:24:30,570 INFO L158 Benchmark]: Toolchain (without parser) took 273999.73ms. Allocated memory was 239.1MB in the beginning and 496.0MB in the end (delta: 256.9MB). Free memory was 190.2MB in the beginning and 149.2MB in the end (delta: 41.0MB). Peak memory consumption was 376.0MB. Max. memory is 7.0GB. [2023-09-06 19:24:30,571 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 162.5MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-06 19:24:30,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.10ms. Allocated memory is still 239.1MB. Free memory was 190.2MB in the beginning and 177.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. [2023-09-06 19:24:30,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.38ms. Allocated memory is still 239.1MB. Free memory was 177.0MB in the beginning and 173.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. [2023-09-06 19:24:30,572 INFO L158 Benchmark]: Boogie Preprocessor took 32.56ms. Allocated memory is still 239.1MB. Free memory was 173.9MB in the beginning and 171.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. [2023-09-06 19:24:30,572 INFO L158 Benchmark]: RCFGBuilder took 838.16ms. Allocated memory is still 239.1MB. Free memory was 171.3MB in the beginning and 194.7MB in the end (delta: -23.4MB). Peak memory consumption was 58.4MB. Max. memory is 7.0GB. [2023-09-06 19:24:30,572 INFO L158 Benchmark]: TraceAbstraction took 272809.91ms. Allocated memory was 239.1MB in the beginning and 496.0MB in the end (delta: 256.9MB). Free memory was 194.2MB in the beginning and 149.2MB in the end (delta: 45.0MB). Peak memory consumption was 379.5MB. Max. memory is 7.0GB. [2023-09-06 19:24:30,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 162.5MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 254.10ms. Allocated memory is still 239.1MB. Free memory was 190.2MB in the beginning and 177.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 57.38ms. Allocated memory is still 239.1MB. Free memory was 177.0MB in the beginning and 173.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 32.56ms. Allocated memory is still 239.1MB. Free memory was 173.9MB in the beginning and 171.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. * RCFGBuilder took 838.16ms. Allocated memory is still 239.1MB. Free memory was 171.3MB in the beginning and 194.7MB in the end (delta: -23.4MB). Peak memory consumption was 58.4MB. Max. memory is 7.0GB. * TraceAbstraction took 272809.91ms. Allocated memory was 239.1MB in the beginning and 496.0MB in the end (delta: 256.9MB). Free memory was 194.2MB in the beginning and 149.2MB in the end (delta: 45.0MB). Peak memory consumption was 379.5MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31368, independent: 29661, independent conditional: 29661, independent unconditional: 0, dependent: 1707, dependent conditional: 1707, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29713, independent: 29661, independent conditional: 29661, independent unconditional: 0, dependent: 52, dependent conditional: 52, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 29713, independent: 29661, independent conditional: 29661, independent unconditional: 0, dependent: 52, dependent conditional: 52, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29880, independent: 29661, independent conditional: 0, independent unconditional: 29661, dependent: 219, dependent conditional: 167, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29880, independent: 29661, independent conditional: 0, independent unconditional: 29661, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29880, independent: 29661, independent conditional: 0, independent unconditional: 29661, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 29713, independent: 29661, independent conditional: 0, independent unconditional: 29661, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 29713, independent: 29657, independent conditional: 0, independent unconditional: 29657, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 56, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 56, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 56, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 29880, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 29713, unknown conditional: 0, unknown unconditional: 29713] , Statistics on independence cache: Total cache size (in pairs): 29713, Positive cache size: 29661, Positive conditional cache size: 0, Positive unconditional cache size: 29661, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 167, Maximal queried relation: 4, Independence queries for same thread: 1655 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 3, RedundantProofs: 2, ProvenStates: 1824 - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 161]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 367 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 272.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 265.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1381 NumberOfCodeBlocks, 1381 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1844 ConstructedInterpolants, 0 QuantifiedInterpolants, 8317 SizeOfPredicates, 36 NumberOfNonLiveVariables, 1296 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 50/103 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown