/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 13:47:03,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 13:47:03,783 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-VariableLbe.epf [2023-08-24 13:47:03,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 13:47:03,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 13:47:03,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 13:47:03,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 13:47:03,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 13:47:03,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 13:47:03,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 13:47:03,823 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 13:47:03,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 13:47:03,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 13:47:03,825 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 13:47:03,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 13:47:03,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 13:47:03,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 13:47:03,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 13:47:03,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 13:47:03,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 13:47:03,827 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 13:47:03,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 13:47:03,828 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 13:47:03,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 13:47:03,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 13:47:03,829 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 13:47:03,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 13:47:03,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 13:47:03,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 13:47:03,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 13:47:03,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 13:47:03,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 13:47:03,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 13:47:03,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 13:47:03,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 13:47:03,832 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-24 13:47:04,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 13:47:04,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 13:47:04,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 13:47:04,168 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 13:47:04,169 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 13:47:04,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-24 13:47:05,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 13:47:05,594 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 13:47:05,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-24 13:47:05,604 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e7d7ba7/dfd92b3d607c41dbaf330be8283a611c/FLAG76e611a66 [2023-08-24 13:47:05,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e7d7ba7/dfd92b3d607c41dbaf330be8283a611c [2023-08-24 13:47:05,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 13:47:05,625 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 13:47:05,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 13:47:05,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 13:47:05,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 13:47:05,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701ce0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05, skipping insertion in model container [2023-08-24 13:47:05,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,654 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 13:47:05,831 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/chl-exp-term-symm.wvr.c[2628,2641] [2023-08-24 13:47:05,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 13:47:05,849 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 13:47:05,883 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/chl-exp-term-symm.wvr.c[2628,2641] [2023-08-24 13:47:05,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 13:47:05,897 INFO L206 MainTranslator]: Completed translation [2023-08-24 13:47:05,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05 WrapperNode [2023-08-24 13:47:05,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 13:47:05,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 13:47:05,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 13:47:05,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 13:47:05,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,949 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 132 [2023-08-24 13:47:05,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 13:47:05,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 13:47:05,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 13:47:05,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 13:47:05,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 13:47:05,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 13:47:05,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 13:47:05,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 13:47:05,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (1/1) ... [2023-08-24 13:47:05,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 13:47:06,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 13:47:06,018 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) [2023-08-24 13:47:06,053 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 [2023-08-24 13:47:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 13:47:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 13:47:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 13:47:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 13:47:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 13:47:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 13:47:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 13:47:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 13:47:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 13:47:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 13:47:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 13:47:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 13:47:06,071 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 13:47:06,169 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 13:47:06,171 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 13:47:06,487 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 13:47:06,493 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 13:47:06,493 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 13:47:06,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:47:06 BoogieIcfgContainer [2023-08-24 13:47:06,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 13:47:06,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 13:47:06,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 13:47:06,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 13:47:06,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 01:47:05" (1/3) ... [2023-08-24 13:47:06,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fab4784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:47:06, skipping insertion in model container [2023-08-24 13:47:06,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:47:05" (2/3) ... [2023-08-24 13:47:06,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fab4784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:47:06, skipping insertion in model container [2023-08-24 13:47:06,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:47:06" (3/3) ... [2023-08-24 13:47:06,506 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-08-24 13:47:06,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 13:47:06,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 13:47:06,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 13:47:06,615 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 13:47:06,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 157 transitions, 330 flow [2023-08-24 13:47:06,794 INFO L124 PetriNetUnfolderBase]: 13/155 cut-off events. [2023-08-24 13:47:06,794 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 13:47:06,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 155 events. 13/155 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 257 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2023-08-24 13:47:06,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 157 transitions, 330 flow [2023-08-24 13:47:06,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 147 transitions, 306 flow [2023-08-24 13:47:06,810 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 13:47:06,820 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 147 transitions, 306 flow [2023-08-24 13:47:06,822 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 147 transitions, 306 flow [2023-08-24 13:47:06,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 147 transitions, 306 flow [2023-08-24 13:47:06,848 INFO L124 PetriNetUnfolderBase]: 13/147 cut-off events. [2023-08-24 13:47:06,848 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 13:47:06,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 147 events. 13/147 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 256 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2023-08-24 13:47:06,852 INFO L119 LiptonReduction]: Number of co-enabled transitions 4212 [2023-08-24 13:47:11,235 INFO L134 LiptonReduction]: Checked pairs total: 3889 [2023-08-24 13:47:11,235 INFO L136 LiptonReduction]: Total number of compositions: 183 [2023-08-24 13:47:11,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 13:47:11,251 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=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;@92c0d5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 13:47:11,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-24 13:47:11,256 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 13:47:11,256 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-24 13:47:11,256 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 13:47:11,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 13:47:11,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 13:47:11,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 13:47:11,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 13:47:11,261 INFO L85 PathProgramCache]: Analyzing trace with hash -503108021, now seen corresponding path program 1 times [2023-08-24 13:47:11,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 13:47:11,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050210403] [2023-08-24 13:47:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 13:47:11,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 13:47:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 13:47:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 13:47:12,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 13:47:12,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050210403] [2023-08-24 13:47:12,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050210403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 13:47:12,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 13:47:12,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 13:47:12,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351722534] [2023-08-24 13:47:12,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 13:47:12,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 13:47:12,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 13:47:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 13:47:12,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 13:47:12,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 340 [2023-08-24 13:47:12,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 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) [2023-08-24 13:47:12,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 13:47:12,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 340 [2023-08-24 13:47:12,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 13:47:12,739 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-24 13:47:12,740 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-24 13:47:12,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 16 conditions per place. [2023-08-24 13:47:12,741 INFO L140 encePairwiseOnDemand]: 336/340 looper letters, 10 selfloop transitions, 3 changer transitions 8/21 dead transitions. [2023-08-24 13:47:12,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 105 flow [2023-08-24 13:47:12,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 13:47:12,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 13:47:12,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2023-08-24 13:47:12,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35411764705882354 [2023-08-24 13:47:12,764 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 602 transitions. [2023-08-24 13:47:12,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 602 transitions. [2023-08-24 13:47:12,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 13:47:12,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 602 transitions. [2023-08-24 13:47:12,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2023-08-24 13:47:12,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 340.0) internal successors, (2040), 6 states have internal predecessors, (2040), 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) [2023-08-24 13:47:12,783 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 340.0) internal successors, (2040), 6 states have internal predecessors, (2040), 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) [2023-08-24 13:47:12,785 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 5 states and 602 transitions. [2023-08-24 13:47:12,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 105 flow [2023-08-24 13:47:12,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 21 transitions, 91 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 13:47:12,789 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 34 flow [2023-08-24 13:47:12,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=34, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2023-08-24 13:47:12,794 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-24 13:47:12,794 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 34 flow [2023-08-24 13:47:12,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 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) [2023-08-24 13:47:12,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 13:47:12,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 13:47:12,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 13:47:12,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 13:47:12,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 13:47:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2125432985, now seen corresponding path program 2 times [2023-08-24 13:47:12,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 13:47:12,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406286714] [2023-08-24 13:47:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 13:47:12,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 13:47:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 13:47:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 13:47:13,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 13:47:13,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406286714] [2023-08-24 13:47:13,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406286714] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 13:47:13,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 13:47:13,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 13:47:13,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839770886] [2023-08-24 13:47:13,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 13:47:13,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 13:47:13,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 13:47:13,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 13:47:13,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 13:47:13,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 340 [2023-08-24 13:47:13,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 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) [2023-08-24 13:47:13,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 13:47:13,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 340 [2023-08-24 13:47:13,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 13:47:13,563 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-08-24 13:47:13,563 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-24 13:47:13,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 35. Up to 6 conditions per place. [2023-08-24 13:47:13,564 INFO L140 encePairwiseOnDemand]: 336/340 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2023-08-24 13:47:13,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 58 flow [2023-08-24 13:47:13,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 13:47:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 13:47:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 593 transitions. [2023-08-24 13:47:13,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3488235294117647 [2023-08-24 13:47:13,567 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 593 transitions. [2023-08-24 13:47:13,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 593 transitions. [2023-08-24 13:47:13,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 13:47:13,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 593 transitions. [2023-08-24 13:47:13,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2023-08-24 13:47:13,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 340.0) internal successors, (2040), 6 states have internal predecessors, (2040), 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) [2023-08-24 13:47:13,574 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 340.0) internal successors, (2040), 6 states have internal predecessors, (2040), 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) [2023-08-24 13:47:13,574 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 34 flow. Second operand 5 states and 593 transitions. [2023-08-24 13:47:13,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 58 flow [2023-08-24 13:47:13,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 12 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 13:47:13,575 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-24 13:47:13,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, 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=5, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-24 13:47:13,576 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-24 13:47:13,576 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-24 13:47:13,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 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) [2023-08-24 13:47:13,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-24 13:47:13,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-24 13:47:13,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-24 13:47:13,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 13:47:13,581 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-08-24 13:47:13,587 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 13:47:13,588 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 13:47:13,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 01:47:13 BasicIcfg [2023-08-24 13:47:13,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 13:47:13,600 INFO L158 Benchmark]: Toolchain (without parser) took 7974.36ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 324.2MB in the beginning and 194.9MB in the end (delta: 129.3MB). Peak memory consumption was 217.8MB. Max. memory is 16.0GB. [2023-08-24 13:47:13,600 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 348.1MB. Free memory is still 324.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 13:47:13,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.71ms. Allocated memory is still 348.1MB. Free memory was 324.2MB in the beginning and 313.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 13:47:13,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 348.1MB. Free memory was 313.1MB in the beginning and 311.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 13:47:13,603 INFO L158 Benchmark]: Boogie Preprocessor took 40.46ms. Allocated memory is still 348.1MB. Free memory was 311.0MB in the beginning and 309.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 13:47:13,605 INFO L158 Benchmark]: RCFGBuilder took 503.85ms. Allocated memory is still 348.1MB. Free memory was 309.3MB in the beginning and 292.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-24 13:47:13,605 INFO L158 Benchmark]: TraceAbstraction took 7101.54ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 291.1MB in the beginning and 194.9MB in the end (delta: 96.1MB). Peak memory consumption was 184.2MB. Max. memory is 16.0GB. [2023-08-24 13:47:13,610 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 348.1MB. Free memory is still 324.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 269.71ms. Allocated memory is still 348.1MB. Free memory was 324.2MB in the beginning and 313.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 348.1MB. Free memory was 313.1MB in the beginning and 311.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 40.46ms. Allocated memory is still 348.1MB. Free memory was 311.0MB in the beginning and 309.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 503.85ms. Allocated memory is still 348.1MB. Free memory was 309.3MB in the beginning and 292.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 7101.54ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 291.1MB in the beginning and 194.9MB in the end (delta: 96.1MB). Peak memory consumption was 184.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 141 PlacesBefore, 18 PlacesAfterwards, 147 TransitionsBefore, 11 TransitionsAfterwards, 4212 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 36 ConcurrentYvCompositions, 13 ChoiceCompositions, 183 TotalNumberOfCompositions, 3889 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3889, independent: 3889, independent conditional: 0, independent unconditional: 3889, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2602, independent: 2602, independent conditional: 0, independent unconditional: 2602, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3889, independent: 1287, independent conditional: 0, independent unconditional: 1287, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2602, unknown conditional: 0, unknown unconditional: 2602] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 72]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 217 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: 6.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1135 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! [2023-08-24 13:47:13,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...