/usr/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:47:37,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:47:37,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:47:37,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:47:37,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:47:37,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:47:37,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:47:37,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:47:37,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:47:37,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:47:37,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:47:37,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:47:37,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:47:37,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:47:37,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:47:37,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:47:37,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:47:37,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:47:37,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:47:37,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:47:37,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:47:37,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:47:37,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:47:37,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:47:37,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 18:47:37,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:47:37,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:47:37,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:47:37,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:47:37,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:47:37,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:47:37,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:47:37,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:47:37,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:47:37,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:47:37,959 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:47:37,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:47:37,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:47:37,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:47:37,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:47:37,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:47:37,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:47:37,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:47:37,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:47:37,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:47:37,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:37,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:47:37,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:47:37,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:47:37,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:47:37,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:47:37,966 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:47:37,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:47:37,966 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:47:38,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:47:38,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:47:38,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:47:38,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:47:38,291 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:47:38,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-05 18:47:39,250 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:47:39,481 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:47:39,482 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-05 18:47:39,492 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a71a1868/85bab03362ac4fa8a2d7e78ea76aea11/FLAG84271297b [2022-12-05 18:47:39,510 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a71a1868/85bab03362ac4fa8a2d7e78ea76aea11 [2022-12-05 18:47:39,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:47:39,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:47:39,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:39,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:47:39,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:47:39,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ae0514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39, skipping insertion in model container [2022-12-05 18:47:39,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:47:39,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:47:39,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-05 18:47:39,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:39,818 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:47:39,847 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-05 18:47:39,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:39,885 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:47:39,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39 WrapperNode [2022-12-05 18:47:39,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:39,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:39,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:47:39,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:47:39,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,923 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-05 18:47:39,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:39,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:47:39,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:47:39,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:47:39,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,957 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:47:39,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:47:39,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:47:39,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:47:39,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (1/1) ... [2022-12-05 18:47:39,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:39,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:47:39,992 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) [2022-12-05 18:47:39,997 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 [2022-12-05 18:47:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:47:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:47:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 18:47:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:47:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:47:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 18:47:40,044 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 18:47:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:47:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:47:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:47:40,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:47:40,045 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:47:40,179 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:47:40,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:47:40,359 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:47:40,364 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:47:40,364 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-05 18:47:40,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:40 BoogieIcfgContainer [2022-12-05 18:47:40,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:47:40,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:47:40,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:47:40,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:47:40,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:47:39" (1/3) ... [2022-12-05 18:47:40,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680ef2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:40, skipping insertion in model container [2022-12-05 18:47:40,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:39" (2/3) ... [2022-12-05 18:47:40,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680ef2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:40, skipping insertion in model container [2022-12-05 18:47:40,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:40" (3/3) ... [2022-12-05 18:47:40,370 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-05 18:47:40,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:47:40,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 18:47:40,382 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:47:40,422 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 18:47:40,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 216 flow [2022-12-05 18:47:40,499 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2022-12-05 18:47:40,500 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:40,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 9/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2022-12-05 18:47:40,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 216 flow [2022-12-05 18:47:40,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 94 transitions, 191 flow [2022-12-05 18:47:40,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:47:40,523 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;@487204b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:47:40,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-05 18:47:40,553 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-05 18:47:40,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:40,554 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:40,554 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:40,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:40,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:40,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2011379282, now seen corresponding path program 1 times [2022-12-05 18:47:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:40,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878149100] [2022-12-05 18:47:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:41,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:41,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878149100] [2022-12-05 18:47:41,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878149100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:41,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:41,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:47:41,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757035501] [2022-12-05 18:47:41,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:41,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:47:41,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:41,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:47:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:47:41,234 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2022-12-05 18:47:41,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 94 transitions, 191 flow. Second operand has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:41,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:41,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2022-12-05 18:47:41,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:41,652 INFO L130 PetriNetUnfolder]: 41/296 cut-off events. [2022-12-05 18:47:41,652 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:41,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 296 events. 41/296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1349 event pairs, 10 based on Foata normal form. 96/389 useless extension candidates. Maximal degree in co-relation 361. Up to 29 conditions per place. [2022-12-05 18:47:41,655 INFO L137 encePairwiseOnDemand]: 85/104 looper letters, 28 selfloop transitions, 4 changer transitions 37/115 dead transitions. [2022-12-05 18:47:41,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 115 transitions, 365 flow [2022-12-05 18:47:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 18:47:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 18:47:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 864 transitions. [2022-12-05 18:47:41,671 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5934065934065934 [2022-12-05 18:47:41,672 INFO L175 Difference]: Start difference. First operand has 89 places, 94 transitions, 191 flow. Second operand 14 states and 864 transitions. [2022-12-05 18:47:41,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 115 transitions, 365 flow [2022-12-05 18:47:41,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 115 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 18:47:41,680 INFO L231 Difference]: Finished difference. Result has 107 places, 78 transitions, 182 flow [2022-12-05 18:47:41,682 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=182, PETRI_PLACES=107, PETRI_TRANSITIONS=78} [2022-12-05 18:47:41,686 INFO L294 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2022-12-05 18:47:41,687 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 78 transitions, 182 flow [2022-12-05 18:47:41,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:41,687 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:41,688 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:41,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:47:41,688 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:41,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:41,690 INFO L85 PathProgramCache]: Analyzing trace with hash 391210782, now seen corresponding path program 1 times [2022-12-05 18:47:41,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:41,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854395557] [2022-12-05 18:47:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:41,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:41,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:41,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854395557] [2022-12-05 18:47:41,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854395557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:41,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:41,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:41,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712152058] [2022-12-05 18:47:41,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:41,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:41,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:41,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:41,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:41,976 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 104 [2022-12-05 18:47:41,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 78 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 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) [2022-12-05 18:47:41,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:41,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 104 [2022-12-05 18:47:41,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:42,063 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-12-05 18:47:42,063 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 18:47:42,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 82 events. 0/82 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 7/89 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-12-05 18:47:42,064 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 16 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2022-12-05 18:47:42,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 78 transitions, 224 flow [2022-12-05 18:47:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 373 transitions. [2022-12-05 18:47:42,067 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7173076923076923 [2022-12-05 18:47:42,067 INFO L175 Difference]: Start difference. First operand has 107 places, 78 transitions, 182 flow. Second operand 5 states and 373 transitions. [2022-12-05 18:47:42,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 78 transitions, 224 flow [2022-12-05 18:47:42,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 204 flow, removed 6 selfloop flow, removed 10 redundant places. [2022-12-05 18:47:42,069 INFO L231 Difference]: Finished difference. Result has 86 places, 78 transitions, 172 flow [2022-12-05 18:47:42,069 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2022-12-05 18:47:42,070 INFO L294 CegarLoopForPetriNet]: 89 programPoint places, -3 predicate places. [2022-12-05 18:47:42,070 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 172 flow [2022-12-05 18:47:42,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 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) [2022-12-05 18:47:42,071 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:42,071 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:42,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:47:42,071 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1107954390, now seen corresponding path program 1 times [2022-12-05 18:47:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505931325] [2022-12-05 18:47:42,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:42,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:42,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:42,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505931325] [2022-12-05 18:47:42,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505931325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:42,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:42,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:47:42,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989930231] [2022-12-05 18:47:42,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:42,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:47:42,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:42,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:47:42,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:47:42,624 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2022-12-05 18:47:42,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 172 flow. Second operand has 17 states, 17 states have (on average 48.35294117647059) internal successors, (822), 17 states have internal predecessors, (822), 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) [2022-12-05 18:47:42,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:42,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2022-12-05 18:47:42,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:43,067 INFO L130 PetriNetUnfolder]: 0/80 cut-off events. [2022-12-05 18:47:43,068 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:43,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 80 events. 0/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2022-12-05 18:47:43,069 INFO L137 encePairwiseOnDemand]: 84/104 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-12-05 18:47:43,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 76 transitions, 246 flow [2022-12-05 18:47:43,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-05 18:47:43,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-05 18:47:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1006 transitions. [2022-12-05 18:47:43,071 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4606227106227106 [2022-12-05 18:47:43,072 INFO L175 Difference]: Start difference. First operand has 86 places, 78 transitions, 172 flow. Second operand 21 states and 1006 transitions. [2022-12-05 18:47:43,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 76 transitions, 246 flow [2022-12-05 18:47:43,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 76 transitions, 240 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:47:43,074 INFO L231 Difference]: Finished difference. Result has 101 places, 0 transitions, 0 flow [2022-12-05 18:47:43,075 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=0, PETRI_PLACES=101, PETRI_TRANSITIONS=0} [2022-12-05 18:47:43,076 INFO L294 CegarLoopForPetriNet]: 89 programPoint places, 12 predicate places. [2022-12-05 18:47:43,076 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 0 transitions, 0 flow [2022-12-05 18:47:43,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 48.35294117647059) internal successors, (822), 17 states have internal predecessors, (822), 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) [2022-12-05 18:47:43,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-05 18:47:43,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-05 18:47:43,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:47:43,080 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-05 18:47:43,083 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:47:43,083 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:47:43,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:47:43 BasicIcfg [2022-12-05 18:47:43,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:47:43,090 INFO L158 Benchmark]: Toolchain (without parser) took 3577.04ms. Allocated memory was 195.0MB in the beginning and 266.3MB in the end (delta: 71.3MB). Free memory was 170.1MB in the beginning and 206.6MB in the end (delta: -36.5MB). Peak memory consumption was 36.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:43,091 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory was 172.2MB in the beginning and 172.1MB in the end (delta: 72.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:47:43,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.06ms. Allocated memory is still 195.0MB. Free memory was 170.1MB in the beginning and 150.4MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 18:47:43,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.36ms. Allocated memory is still 195.0MB. Free memory was 150.4MB in the beginning and 148.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:47:43,094 INFO L158 Benchmark]: Boogie Preprocessor took 35.17ms. Allocated memory is still 195.0MB. Free memory was 148.3MB in the beginning and 146.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:43,094 INFO L158 Benchmark]: RCFGBuilder took 405.35ms. Allocated memory is still 195.0MB. Free memory was 146.7MB in the beginning and 132.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-05 18:47:43,095 INFO L158 Benchmark]: TraceAbstraction took 2722.36ms. Allocated memory was 195.0MB in the beginning and 266.3MB in the end (delta: 71.3MB). Free memory was 131.1MB in the beginning and 206.6MB in the end (delta: -75.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:47:43,099 INFO L339 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 195.0MB. Free memory was 172.2MB in the beginning and 172.1MB in the end (delta: 72.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 372.06ms. Allocated memory is still 195.0MB. Free memory was 170.1MB in the beginning and 150.4MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.36ms. Allocated memory is still 195.0MB. Free memory was 150.4MB in the beginning and 148.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.17ms. Allocated memory is still 195.0MB. Free memory was 148.3MB in the beginning and 146.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 405.35ms. Allocated memory is still 195.0MB. Free memory was 146.7MB in the beginning and 132.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2722.36ms. Allocated memory was 195.0MB in the beginning and 266.3MB in the end (delta: 71.3MB). Free memory was 131.1MB in the beginning and 206.6MB in the end (delta: -75.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: 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 3 procedures, 125 locations, 2 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: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 381 IncrementalHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 57 mSDtfsCounter, 381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=0, InterpolantAutomatonStates: 40, 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, 1.2s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-12-05 18:47:43,112 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...