/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 12:38:22,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 12:38:22,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 12:38:22,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 12:38:22,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 12:38:22,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 12:38:22,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 12:38:22,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 12:38:22,231 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 12:38:22,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 12:38:22,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 12:38:22,236 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 12:38:22,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 12:38:22,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 12:38:22,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 12:38:22,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 12:38:22,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 12:38:22,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 12:38:22,238 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 12:38:22,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 12:38:22,239 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 12:38:22,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 12:38:22,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 12:38:22,240 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 12:38:22,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 12:38:22,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 12:38:22,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 12:38:22,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 12:38:22,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 12:38:22,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 12:38:22,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 12:38:22,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 12:38:22,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 12:38:22,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 12:38:22,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 12:38:22,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 12:38:22,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 12:38:22,454 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 12:38:22,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c [2023-11-17 12:38:23,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 12:38:23,827 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 12:38:23,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c [2023-11-17 12:38:23,836 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c8be849/71fdb11246824e4fab8b2ecbed9d7c64/FLAG10b6ce938 [2023-11-17 12:38:23,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c8be849/71fdb11246824e4fab8b2ecbed9d7c64 [2023-11-17 12:38:23,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 12:38:23,865 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 12:38:23,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 12:38:23,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 12:38:23,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 12:38:23,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:38:23" (1/1) ... [2023-11-17 12:38:23,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f9e76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:23, skipping insertion in model container [2023-11-17 12:38:23,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:38:23" (1/1) ... [2023-11-17 12:38:23,896 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 12:38:24,052 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/test-semi1.wvr.c[2005,2018] [2023-11-17 12:38:24,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 12:38:24,067 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 12:38:24,089 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/test-semi1.wvr.c[2005,2018] [2023-11-17 12:38:24,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 12:38:24,105 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 12:38:24,106 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 12:38:24,110 INFO L206 MainTranslator]: Completed translation [2023-11-17 12:38:24,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24 WrapperNode [2023-11-17 12:38:24,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 12:38:24,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 12:38:24,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 12:38:24,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 12:38:24,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,137 INFO L138 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73 [2023-11-17 12:38:24,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 12:38:24,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 12:38:24,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 12:38:24,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 12:38:24,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 12:38:24,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 12:38:24,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 12:38:24,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 12:38:24,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (1/1) ... [2023-11-17 12:38:24,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 12:38:24,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 12:38:24,181 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) [2023-11-17 12:38:24,192 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 [2023-11-17 12:38:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 12:38:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 12:38:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 12:38:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 12:38:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 12:38:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 12:38:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 12:38:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 12:38:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 12:38:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 12:38:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 12:38:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 12:38:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 12:38:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 12:38:24,211 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 12:38:24,331 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 12:38:24,335 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 12:38:24,527 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 12:38:24,669 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 12:38:24,669 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 12:38:24,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:38:24 BoogieIcfgContainer [2023-11-17 12:38:24,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 12:38:24,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 12:38:24,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 12:38:24,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 12:38:24,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:38:23" (1/3) ... [2023-11-17 12:38:24,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c4584b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:38:24, skipping insertion in model container [2023-11-17 12:38:24,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:24" (2/3) ... [2023-11-17 12:38:24,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c4584b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:38:24, skipping insertion in model container [2023-11-17 12:38:24,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:38:24" (3/3) ... [2023-11-17 12:38:24,677 INFO L112 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2023-11-17 12:38:24,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 12:38:24,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 12:38:24,692 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 12:38:24,736 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 12:38:24,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 52 flow [2023-11-17 12:38:24,805 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-17 12:38:24,805 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 12:38:24,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 0/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-17 12:38:24,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 19 transitions, 52 flow [2023-11-17 12:38:24,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 16 transitions, 44 flow [2023-11-17 12:38:24,820 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 12:38:24,830 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 16 transitions, 44 flow [2023-11-17 12:38:24,832 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 16 transitions, 44 flow [2023-11-17 12:38:24,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 16 transitions, 44 flow [2023-11-17 12:38:24,839 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2023-11-17 12:38:24,839 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 12:38:24,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 0/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-17 12:38:24,840 INFO L119 LiptonReduction]: Number of co-enabled transitions 54 [2023-11-17 12:38:25,066 INFO L134 LiptonReduction]: Checked pairs total: 77 [2023-11-17 12:38:25,067 INFO L136 LiptonReduction]: Total number of compositions: 5 [2023-11-17 12:38:25,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 12:38:25,085 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c308bd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 12:38:25,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-17 12:38:25,090 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 12:38:25,090 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-17 12:38:25,090 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 12:38:25,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 12:38:25,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 12:38:25,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 12:38:25,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:38:25,095 INFO L85 PathProgramCache]: Analyzing trace with hash 849362414, now seen corresponding path program 1 times [2023-11-17 12:38:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:38:25,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058251997] [2023-11-17 12:38:25,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:38:25,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:38:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:38:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:38:25,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:38:25,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058251997] [2023-11-17 12:38:25,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058251997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:38:25,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:38:25,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 12:38:25,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876358837] [2023-11-17 12:38:25,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:38:25,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 12:38:25,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:38:25,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 12:38:25,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 12:38:25,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2023-11-17 12:38:25,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-17 12:38:25,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 12:38:25,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2023-11-17 12:38:25,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 12:38:25,577 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-11-17 12:38:25,578 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-17 12:38:25,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 13 conditions per place. [2023-11-17 12:38:25,580 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 10 selfloop transitions, 2 changer transitions 10/22 dead transitions. [2023-11-17 12:38:25,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 112 flow [2023-11-17 12:38:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:38:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 12:38:25,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2023-11-17 12:38:25,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4479166666666667 [2023-11-17 12:38:25,590 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 43 transitions. [2023-11-17 12:38:25,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 43 transitions. [2023-11-17 12:38:25,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 12:38:25,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 43 transitions. [2023-11-17 12:38:25,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2023-11-17 12:38:25,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-11-17 12:38:25,597 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-11-17 12:38:25,598 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 4 states and 43 transitions. [2023-11-17 12:38:25,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 112 flow [2023-11-17 12:38:25,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-17 12:38:25,602 INFO L231 Difference]: Finished difference. Result has 18 places, 11 transitions, 36 flow [2023-11-17 12:38:25,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=36, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2023-11-17 12:38:25,606 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2023-11-17 12:38:25,606 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 36 flow [2023-11-17 12:38:25,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-17 12:38:25,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 12:38:25,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 12:38:25,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 12:38:25,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 12:38:25,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:38:25,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1386561558, now seen corresponding path program 2 times [2023-11-17 12:38:25,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:38:25,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213588635] [2023-11-17 12:38:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:38:25,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:38:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:38:25,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:38:25,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:38:25,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213588635] [2023-11-17 12:38:25,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213588635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:38:25,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:38:25,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 12:38:25,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448579157] [2023-11-17 12:38:25,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:38:25,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 12:38:25,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:38:25,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 12:38:25,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 12:38:25,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2023-11-17 12:38:25,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-17 12:38:25,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 12:38:25,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2023-11-17 12:38:25,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 12:38:25,762 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-11-17 12:38:25,762 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 12:38:25,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 1 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 17. Up to 11 conditions per place. [2023-11-17 12:38:25,764 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-11-17 12:38:25,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 11 transitions, 56 flow [2023-11-17 12:38:25,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:38:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 12:38:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2023-11-17 12:38:25,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2023-11-17 12:38:25,766 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 32 transitions. [2023-11-17 12:38:25,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 32 transitions. [2023-11-17 12:38:25,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 12:38:25,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 32 transitions. [2023-11-17 12:38:25,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-17 12:38:25,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-11-17 12:38:25,768 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-11-17 12:38:25,768 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 36 flow. Second operand 4 states and 32 transitions. [2023-11-17 12:38:25,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 11 transitions, 56 flow [2023-11-17 12:38:25,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 12:38:25,769 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2023-11-17 12:38:25,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2023-11-17 12:38:25,770 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places. [2023-11-17 12:38:25,770 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2023-11-17 12:38:25,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-17 12:38:25,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-17 12:38:25,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-17 12:38:25,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-17 12:38:25,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 12:38:25,774 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-11-17 12:38:25,777 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 12:38:25,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 12:38:25,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 12:38:25 BasicIcfg [2023-11-17 12:38:25,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 12:38:25,781 INFO L158 Benchmark]: Toolchain (without parser) took 1915.81ms. Allocated memory is still 191.9MB. Free memory was 148.2MB in the beginning and 91.0MB in the end (delta: 57.2MB). Peak memory consumption was 58.0MB. Max. memory is 8.0GB. [2023-11-17 12:38:25,781 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 191.9MB. Free memory is still 151.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 12:38:25,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.60ms. Allocated memory is still 191.9MB. Free memory was 148.2MB in the beginning and 137.1MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-17 12:38:25,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.24ms. Allocated memory is still 191.9MB. Free memory was 137.1MB in the beginning and 135.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 12:38:25,783 INFO L158 Benchmark]: Boogie Preprocessor took 18.62ms. Allocated memory is still 191.9MB. Free memory was 135.6MB in the beginning and 134.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 12:38:25,785 INFO L158 Benchmark]: RCFGBuilder took 514.03ms. Allocated memory is still 191.9MB. Free memory was 134.3MB in the beginning and 167.6MB in the end (delta: -33.2MB). Peak memory consumption was 30.7MB. Max. memory is 8.0GB. [2023-11-17 12:38:25,785 INFO L158 Benchmark]: TraceAbstraction took 1107.80ms. Allocated memory is still 191.9MB. Free memory was 167.0MB in the beginning and 91.0MB in the end (delta: 76.0MB). Peak memory consumption was 75.5MB. Max. memory is 8.0GB. [2023-11-17 12:38:25,789 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 191.9MB. Free memory is still 151.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.60ms. Allocated memory is still 191.9MB. Free memory was 148.2MB in the beginning and 137.1MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.24ms. Allocated memory is still 191.9MB. Free memory was 137.1MB in the beginning and 135.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.62ms. Allocated memory is still 191.9MB. Free memory was 135.6MB in the beginning and 134.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 514.03ms. Allocated memory is still 191.9MB. Free memory was 134.3MB in the beginning and 167.6MB in the end (delta: -33.2MB). Peak memory consumption was 30.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1107.80ms. Allocated memory is still 191.9MB. Free memory was 167.0MB in the beginning and 91.0MB in the end (delta: 76.0MB). Peak memory consumption was 75.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 23 PlacesBefore, 18 PlacesAfterwards, 16 TransitionsBefore, 11 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 77 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 74, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 47, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 47, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 74, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 47, unknown conditional: 0, unknown unconditional: 47] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 72]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 30 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 8, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 12:38:25,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...