/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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:47:44,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:47:44,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:47:44,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:47:44,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:47:44,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:47:44,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:47:44,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:47:44,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:47:44,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:47:44,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:47:44,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:47:44,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:47:44,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:47:44,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:47:44,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:47:44,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:47:44,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:47:44,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:47:44,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:47:44,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:47:44,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:47:44,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:47:44,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:47:44,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 18:47:44,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:47:44,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:47:44,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:47:44,220 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 18:47:44,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:47:44,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:47:44,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:47:44,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:47:44,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:47:44,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:47:44,252 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:47:44,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:47:44,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:47:44,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:47:44,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:47:44,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:47:44,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:47:44,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:47:44,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:44,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:47:44,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:47:44,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:47:44,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:47:44,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:47:44,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:47:44,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:47:44,533 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:47:44,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-05 18:47:45,661 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:47:45,948 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:47:45,948 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-05 18:47:45,956 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7229b46ea/6082f3a13f58441899a4140dbce1eb8e/FLAG229db3f2a [2022-12-05 18:47:45,972 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7229b46ea/6082f3a13f58441899a4140dbce1eb8e [2022-12-05 18:47:45,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:47:45,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:47:45,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:45,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:47:45,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:47:45,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:45" (1/1) ... [2022-12-05 18:47:45,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f14c850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:45, skipping insertion in model container [2022-12-05 18:47:45,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:45" (1/1) ... [2022-12-05 18:47:45,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:47:46,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:47:46,132 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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-05 18:47:46,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:46,274 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:47:46,283 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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-05 18:47:46,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:46,329 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:47:46,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46 WrapperNode [2022-12-05 18:47:46,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:46,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:46,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:47:46,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:47:46,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,371 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2022-12-05 18:47:46,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:46,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:47:46,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:47:46,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:47:46,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,404 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:47:46,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:47:46,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:47:46,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:47:46,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (1/1) ... [2022-12-05 18:47:46,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:46,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:47:46,447 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 18:47:46,463 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 18:47:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:47:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 18:47:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:47:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:47:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 18:47:46,474 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 18:47:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:47:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:47:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:47:46,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:47:46,475 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 18:47:46,563 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:47:46,565 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:47:46,758 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:47:46,765 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:47:46,765 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:47:46,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:46 BoogieIcfgContainer [2022-12-05 18:47:46,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:47:46,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:47:46,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:47:46,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:47:46,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:47:45" (1/3) ... [2022-12-05 18:47:46,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cca2a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:46, skipping insertion in model container [2022-12-05 18:47:46,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:46" (2/3) ... [2022-12-05 18:47:46,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cca2a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:46, skipping insertion in model container [2022-12-05 18:47:46,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:46" (3/3) ... [2022-12-05 18:47:46,772 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-05 18:47:46,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:47:46,786 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 18:47:46,786 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:47:46,855 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:47:46,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 162 transitions, 329 flow [2022-12-05 18:47:46,959 INFO L130 PetriNetUnfolder]: 8/164 cut-off events. [2022-12-05 18:47:46,959 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:46,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 8/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2022-12-05 18:47:46,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 162 transitions, 329 flow [2022-12-05 18:47:46,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 160 transitions, 323 flow [2022-12-05 18:47:46,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:47:47,001 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;@6b4f10e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:47:47,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-05 18:47:47,043 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2022-12-05 18:47:47,044 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:47,044 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:47,044 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] [2022-12-05 18:47:47,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:47,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:47,048 INFO L85 PathProgramCache]: Analyzing trace with hash 404338569, now seen corresponding path program 1 times [2022-12-05 18:47:47,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:47,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788493105] [2022-12-05 18:47:47,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:47,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:47,702 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 18:47:47,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:47,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788493105] [2022-12-05 18:47:47,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788493105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:47,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:47,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:47,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329384128] [2022-12-05 18:47:47,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:47,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:47,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:47,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:47,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:47,747 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 162 [2022-12-05 18:47:47,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 160 transitions, 323 flow. Second operand has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 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 18:47:47,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:47,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 162 [2022-12-05 18:47:47,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:48,128 INFO L130 PetriNetUnfolder]: 95/830 cut-off events. [2022-12-05 18:47:48,128 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:48,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 830 events. 95/830 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5291 event pairs, 27 based on Foata normal form. 93/863 useless extension candidates. Maximal degree in co-relation 1022. Up to 89 conditions per place. [2022-12-05 18:47:48,138 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 52 selfloop transitions, 38 changer transitions 10/218 dead transitions. [2022-12-05 18:47:48,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 218 transitions, 631 flow [2022-12-05 18:47:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-05 18:47:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-05 18:47:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2486 transitions. [2022-12-05 18:47:48,155 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8076673164392463 [2022-12-05 18:47:48,157 INFO L175 Difference]: Start difference. First operand has 156 places, 160 transitions, 323 flow. Second operand 19 states and 2486 transitions. [2022-12-05 18:47:48,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 218 transitions, 631 flow [2022-12-05 18:47:48,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 218 transitions, 630 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 18:47:48,166 INFO L231 Difference]: Finished difference. Result has 175 places, 177 transitions, 474 flow [2022-12-05 18:47:48,168 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=474, PETRI_PLACES=175, PETRI_TRANSITIONS=177} [2022-12-05 18:47:48,175 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 19 predicate places. [2022-12-05 18:47:48,175 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 177 transitions, 474 flow [2022-12-05 18:47:48,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 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 18:47:48,176 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:48,176 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] [2022-12-05 18:47:48,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:47:48,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:48,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:48,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1598717764, now seen corresponding path program 1 times [2022-12-05 18:47:48,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:48,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747331040] [2022-12-05 18:47:48,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:48,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:48,456 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 18:47:48,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:48,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747331040] [2022-12-05 18:47:48,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747331040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:48,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:48,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:48,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584566113] [2022-12-05 18:47:48,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:48,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:48,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:48,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:48,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:48,461 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 162 [2022-12-05 18:47:48,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 177 transitions, 474 flow. Second operand has 8 states, 8 states have (on average 126.0) internal successors, (1008), 8 states have internal predecessors, (1008), 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 18:47:48,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:48,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 162 [2022-12-05 18:47:48,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:48,700 INFO L130 PetriNetUnfolder]: 84/745 cut-off events. [2022-12-05 18:47:48,700 INFO L131 PetriNetUnfolder]: For 94/221 co-relation queries the response was YES. [2022-12-05 18:47:48,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 745 events. 84/745 cut-off events. For 94/221 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4437 event pairs, 24 based on Foata normal form. 19/730 useless extension candidates. Maximal degree in co-relation 1052. Up to 83 conditions per place. [2022-12-05 18:47:48,703 INFO L137 encePairwiseOnDemand]: 147/162 looper letters, 49 selfloop transitions, 44 changer transitions 0/211 dead transitions. [2022-12-05 18:47:48,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 211 transitions, 744 flow [2022-12-05 18:47:48,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-05 18:47:48,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-05 18:47:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2446 transitions. [2022-12-05 18:47:48,708 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7946718648473035 [2022-12-05 18:47:48,708 INFO L175 Difference]: Start difference. First operand has 175 places, 177 transitions, 474 flow. Second operand 19 states and 2446 transitions. [2022-12-05 18:47:48,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 211 transitions, 744 flow [2022-12-05 18:47:48,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 211 transitions, 742 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 18:47:48,717 INFO L231 Difference]: Finished difference. Result has 190 places, 189 transitions, 630 flow [2022-12-05 18:47:48,721 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=630, PETRI_PLACES=190, PETRI_TRANSITIONS=189} [2022-12-05 18:47:48,722 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 34 predicate places. [2022-12-05 18:47:48,722 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 189 transitions, 630 flow [2022-12-05 18:47:48,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 126.0) internal successors, (1008), 8 states have internal predecessors, (1008), 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 18:47:48,723 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:48,723 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] [2022-12-05 18:47:48,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:47:48,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:48,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:48,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1409961072, now seen corresponding path program 1 times [2022-12-05 18:47:48,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:48,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899093565] [2022-12-05 18:47:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:48,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:48,892 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 18:47:48,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:48,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899093565] [2022-12-05 18:47:48,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899093565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:48,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:48,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677247790] [2022-12-05 18:47:48,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:48,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:48,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:48,895 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 162 [2022-12-05 18:47:48,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 189 transitions, 630 flow. Second operand has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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 18:47:48,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:48,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 162 [2022-12-05 18:47:48,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:49,006 INFO L130 PetriNetUnfolder]: 29/451 cut-off events. [2022-12-05 18:47:49,006 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-12-05 18:47:49,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 451 events. 29/451 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1867 event pairs, 7 based on Foata normal form. 6/442 useless extension candidates. Maximal degree in co-relation 698. Up to 60 conditions per place. [2022-12-05 18:47:49,008 INFO L137 encePairwiseOnDemand]: 153/162 looper letters, 23 selfloop transitions, 9 changer transitions 0/172 dead transitions. [2022-12-05 18:47:49,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 172 transitions, 555 flow [2022-12-05 18:47:49,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 660 transitions. [2022-12-05 18:47:49,009 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-12-05 18:47:49,009 INFO L175 Difference]: Start difference. First operand has 190 places, 189 transitions, 630 flow. Second operand 5 states and 660 transitions. [2022-12-05 18:47:49,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 172 transitions, 555 flow [2022-12-05 18:47:49,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 172 transitions, 524 flow, removed 4 selfloop flow, removed 10 redundant places. [2022-12-05 18:47:49,018 INFO L231 Difference]: Finished difference. Result has 177 places, 167 transitions, 479 flow [2022-12-05 18:47:49,018 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=479, PETRI_PLACES=177, PETRI_TRANSITIONS=167} [2022-12-05 18:47:49,019 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 21 predicate places. [2022-12-05 18:47:49,019 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 167 transitions, 479 flow [2022-12-05 18:47:49,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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 18:47:49,020 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:49,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:49,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:47:49,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:49,021 INFO L85 PathProgramCache]: Analyzing trace with hash 66740242, now seen corresponding path program 1 times [2022-12-05 18:47:49,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:49,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597783111] [2022-12-05 18:47:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:49,249 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 18:47:49,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:49,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597783111] [2022-12-05 18:47:49,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597783111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:49,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:49,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 18:47:49,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970697390] [2022-12-05 18:47:49,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:49,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 18:47:49,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:49,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 18:47:49,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-05 18:47:49,258 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2022-12-05 18:47:49,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 167 transitions, 479 flow. Second operand has 13 states, 13 states have (on average 111.15384615384616) internal successors, (1445), 13 states have internal predecessors, (1445), 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 18:47:49,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:49,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2022-12-05 18:47:49,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:49,905 INFO L130 PetriNetUnfolder]: 119/747 cut-off events. [2022-12-05 18:47:49,905 INFO L131 PetriNetUnfolder]: For 80/89 co-relation queries the response was YES. [2022-12-05 18:47:49,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 747 events. 119/747 cut-off events. For 80/89 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3831 event pairs, 1 based on Foata normal form. 6/719 useless extension candidates. Maximal degree in co-relation 1256. Up to 47 conditions per place. [2022-12-05 18:47:49,909 INFO L137 encePairwiseOnDemand]: 143/162 looper letters, 109 selfloop transitions, 50 changer transitions 2/265 dead transitions. [2022-12-05 18:47:49,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 265 transitions, 1066 flow [2022-12-05 18:47:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-05 18:47:49,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-05 18:47:49,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2986 transitions. [2022-12-05 18:47:49,914 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7089268755935423 [2022-12-05 18:47:49,915 INFO L175 Difference]: Start difference. First operand has 177 places, 167 transitions, 479 flow. Second operand 26 states and 2986 transitions. [2022-12-05 18:47:49,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 265 transitions, 1066 flow [2022-12-05 18:47:49,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 265 transitions, 1063 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:47:49,920 INFO L231 Difference]: Finished difference. Result has 206 places, 191 transitions, 714 flow [2022-12-05 18:47:49,921 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=714, PETRI_PLACES=206, PETRI_TRANSITIONS=191} [2022-12-05 18:47:49,922 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 50 predicate places. [2022-12-05 18:47:49,922 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 191 transitions, 714 flow [2022-12-05 18:47:49,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 111.15384615384616) internal successors, (1445), 13 states have internal predecessors, (1445), 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 18:47:49,923 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:49,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:49,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:47:49,924 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:49,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:49,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1355822040, now seen corresponding path program 1 times [2022-12-05 18:47:49,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:49,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591319157] [2022-12-05 18:47:49,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:49,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:50,047 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 18:47:50,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:50,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591319157] [2022-12-05 18:47:50,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591319157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:50,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:50,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:50,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866880915] [2022-12-05 18:47:50,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:50,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:50,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:50,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:50,049 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-05 18:47:50,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 191 transitions, 714 flow. Second operand has 8 states, 8 states have (on average 121.375) internal successors, (971), 8 states have internal predecessors, (971), 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 18:47:50,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:50,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-05 18:47:50,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:50,222 INFO L130 PetriNetUnfolder]: 44/622 cut-off events. [2022-12-05 18:47:50,223 INFO L131 PetriNetUnfolder]: For 235/238 co-relation queries the response was YES. [2022-12-05 18:47:50,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 622 events. 44/622 cut-off events. For 235/238 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2779 event pairs, 6 based on Foata normal form. 4/601 useless extension candidates. Maximal degree in co-relation 1082. Up to 55 conditions per place. [2022-12-05 18:47:50,225 INFO L137 encePairwiseOnDemand]: 150/162 looper letters, 59 selfloop transitions, 34 changer transitions 0/211 dead transitions. [2022-12-05 18:47:50,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 211 transitions, 946 flow [2022-12-05 18:47:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:47:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:47:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1504 transitions. [2022-12-05 18:47:50,228 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7736625514403292 [2022-12-05 18:47:50,228 INFO L175 Difference]: Start difference. First operand has 206 places, 191 transitions, 714 flow. Second operand 12 states and 1504 transitions. [2022-12-05 18:47:50,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 211 transitions, 946 flow [2022-12-05 18:47:50,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 211 transitions, 914 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-12-05 18:47:50,233 INFO L231 Difference]: Finished difference. Result has 208 places, 189 transitions, 742 flow [2022-12-05 18:47:50,234 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=742, PETRI_PLACES=208, PETRI_TRANSITIONS=189} [2022-12-05 18:47:50,234 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 52 predicate places. [2022-12-05 18:47:50,234 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 189 transitions, 742 flow [2022-12-05 18:47:50,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.375) internal successors, (971), 8 states have internal predecessors, (971), 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 18:47:50,235 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:50,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:50,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:47:50,235 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:50,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash -992884684, now seen corresponding path program 1 times [2022-12-05 18:47:50,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:50,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307927791] [2022-12-05 18:47:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:50,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:50,468 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 18:47:50,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:50,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307927791] [2022-12-05 18:47:50,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307927791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:50,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:50,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 18:47:50,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370277866] [2022-12-05 18:47:50,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:50,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 18:47:50,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:50,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 18:47:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-05 18:47:50,470 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 162 [2022-12-05 18:47:50,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 189 transitions, 742 flow. Second operand has 13 states, 13 states have (on average 115.46153846153847) internal successors, (1501), 13 states have internal predecessors, (1501), 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 18:47:50,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:50,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 162 [2022-12-05 18:47:50,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:51,138 INFO L130 PetriNetUnfolder]: 159/1263 cut-off events. [2022-12-05 18:47:51,138 INFO L131 PetriNetUnfolder]: For 574/600 co-relation queries the response was YES. [2022-12-05 18:47:51,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2432 conditions, 1263 events. 159/1263 cut-off events. For 574/600 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8544 event pairs, 39 based on Foata normal form. 25/1231 useless extension candidates. Maximal degree in co-relation 2367. Up to 107 conditions per place. [2022-12-05 18:47:51,143 INFO L137 encePairwiseOnDemand]: 142/162 looper letters, 71 selfloop transitions, 55 changer transitions 53/299 dead transitions. [2022-12-05 18:47:51,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 299 transitions, 1556 flow [2022-12-05 18:47:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-05 18:47:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-05 18:47:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4099 transitions. [2022-12-05 18:47:51,149 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7229276895943563 [2022-12-05 18:47:51,149 INFO L175 Difference]: Start difference. First operand has 208 places, 189 transitions, 742 flow. Second operand 35 states and 4099 transitions. [2022-12-05 18:47:51,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 299 transitions, 1556 flow [2022-12-05 18:47:51,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 299 transitions, 1437 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-12-05 18:47:51,155 INFO L231 Difference]: Finished difference. Result has 248 places, 216 transitions, 943 flow [2022-12-05 18:47:51,156 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=943, PETRI_PLACES=248, PETRI_TRANSITIONS=216} [2022-12-05 18:47:51,156 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 92 predicate places. [2022-12-05 18:47:51,156 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 216 transitions, 943 flow [2022-12-05 18:47:51,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.46153846153847) internal successors, (1501), 13 states have internal predecessors, (1501), 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 18:47:51,157 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:51,157 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, 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 18:47:51,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:47:51,157 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:51,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash 730558499, now seen corresponding path program 1 times [2022-12-05 18:47:51,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:51,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770041893] [2022-12-05 18:47:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:51,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:51,354 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 18:47:51,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:51,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770041893] [2022-12-05 18:47:51,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770041893] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:51,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:51,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:51,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344979724] [2022-12-05 18:47:51,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:51,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:51,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:51,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:51,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:51,356 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-05 18:47:51,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 216 transitions, 943 flow. Second operand has 8 states, 8 states have (on average 122.125) internal successors, (977), 8 states have internal predecessors, (977), 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 18:47:51,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:51,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-05 18:47:51,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:51,505 INFO L130 PetriNetUnfolder]: 51/648 cut-off events. [2022-12-05 18:47:51,505 INFO L131 PetriNetUnfolder]: For 602/605 co-relation queries the response was YES. [2022-12-05 18:47:51,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 648 events. 51/648 cut-off events. For 602/605 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3239 event pairs, 10 based on Foata normal form. 4/623 useless extension candidates. Maximal degree in co-relation 1352. Up to 57 conditions per place. [2022-12-05 18:47:51,508 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 28 selfloop transitions, 9 changer transitions 5/213 dead transitions. [2022-12-05 18:47:51,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 213 transitions, 962 flow [2022-12-05 18:47:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:47:51,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:47:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 751 transitions. [2022-12-05 18:47:51,509 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.772633744855967 [2022-12-05 18:47:51,509 INFO L175 Difference]: Start difference. First operand has 248 places, 216 transitions, 943 flow. Second operand 6 states and 751 transitions. [2022-12-05 18:47:51,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 213 transitions, 962 flow [2022-12-05 18:47:51,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 213 transitions, 909 flow, removed 15 selfloop flow, removed 13 redundant places. [2022-12-05 18:47:51,515 INFO L231 Difference]: Finished difference. Result has 225 places, 204 transitions, 818 flow [2022-12-05 18:47:51,516 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=818, PETRI_PLACES=225, PETRI_TRANSITIONS=204} [2022-12-05 18:47:51,516 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 69 predicate places. [2022-12-05 18:47:51,516 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 204 transitions, 818 flow [2022-12-05 18:47:51,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 122.125) internal successors, (977), 8 states have internal predecessors, (977), 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 18:47:51,517 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:51,517 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, 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 18:47:51,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:47:51,517 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:51,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1809941634, now seen corresponding path program 1 times [2022-12-05 18:47:51,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:51,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851257516] [2022-12-05 18:47:51,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:51,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:51,668 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 18:47:51,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:51,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851257516] [2022-12-05 18:47:51,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851257516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:51,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:51,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:51,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250309593] [2022-12-05 18:47:51,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:51,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:51,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:51,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:51,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:51,670 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 162 [2022-12-05 18:47:51,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 204 transitions, 818 flow. Second operand has 6 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 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 18:47:51,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:51,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 162 [2022-12-05 18:47:51,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:51,746 INFO L130 PetriNetUnfolder]: 22/381 cut-off events. [2022-12-05 18:47:51,746 INFO L131 PetriNetUnfolder]: For 235/236 co-relation queries the response was YES. [2022-12-05 18:47:51,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 381 events. 22/381 cut-off events. For 235/236 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1205 event pairs, 6 based on Foata normal form. 1/374 useless extension candidates. Maximal degree in co-relation 682. Up to 37 conditions per place. [2022-12-05 18:47:51,748 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 25 selfloop transitions, 8 changer transitions 19/165 dead transitions. [2022-12-05 18:47:51,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 165 transitions, 620 flow [2022-12-05 18:47:51,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:51,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:51,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 658 transitions. [2022-12-05 18:47:51,749 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8123456790123457 [2022-12-05 18:47:51,749 INFO L175 Difference]: Start difference. First operand has 225 places, 204 transitions, 818 flow. Second operand 5 states and 658 transitions. [2022-12-05 18:47:51,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 165 transitions, 620 flow [2022-12-05 18:47:51,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 165 transitions, 561 flow, removed 6 selfloop flow, removed 16 redundant places. [2022-12-05 18:47:51,752 INFO L231 Difference]: Finished difference. Result has 184 places, 141 transitions, 417 flow [2022-12-05 18:47:51,753 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=417, PETRI_PLACES=184, PETRI_TRANSITIONS=141} [2022-12-05 18:47:51,755 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 28 predicate places. [2022-12-05 18:47:51,755 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 141 transitions, 417 flow [2022-12-05 18:47:51,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 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 18:47:51,757 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:51,757 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, 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 18:47:51,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:47:51,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:51,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:51,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1369855395, now seen corresponding path program 1 times [2022-12-05 18:47:51,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:51,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646965250] [2022-12-05 18:47:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:51,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:51,941 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 18:47:51,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:51,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646965250] [2022-12-05 18:47:51,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646965250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:51,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:51,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:51,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208239495] [2022-12-05 18:47:51,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:51,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:51,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:51,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:51,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:51,943 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-05 18:47:51,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 141 transitions, 417 flow. Second operand has 8 states, 8 states have (on average 121.875) internal successors, (975), 8 states have internal predecessors, (975), 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 18:47:51,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:51,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-05 18:47:51,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:52,076 INFO L130 PetriNetUnfolder]: 16/345 cut-off events. [2022-12-05 18:47:52,076 INFO L131 PetriNetUnfolder]: For 101/103 co-relation queries the response was YES. [2022-12-05 18:47:52,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 345 events. 16/345 cut-off events. For 101/103 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 896 event pairs, 3 based on Foata normal form. 5/347 useless extension candidates. Maximal degree in co-relation 634. Up to 21 conditions per place. [2022-12-05 18:47:52,078 INFO L137 encePairwiseOnDemand]: 151/162 looper letters, 24 selfloop transitions, 10 changer transitions 0/145 dead transitions. [2022-12-05 18:47:52,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 145 transitions, 491 flow [2022-12-05 18:47:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:47:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:47:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1106 transitions. [2022-12-05 18:47:52,080 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7585733882030178 [2022-12-05 18:47:52,080 INFO L175 Difference]: Start difference. First operand has 184 places, 141 transitions, 417 flow. Second operand 9 states and 1106 transitions. [2022-12-05 18:47:52,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 145 transitions, 491 flow [2022-12-05 18:47:52,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 145 transitions, 428 flow, removed 10 selfloop flow, removed 13 redundant places. [2022-12-05 18:47:52,085 INFO L231 Difference]: Finished difference. Result has 159 places, 139 transitions, 368 flow [2022-12-05 18:47:52,085 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=368, PETRI_PLACES=159, PETRI_TRANSITIONS=139} [2022-12-05 18:47:52,086 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 3 predicate places. [2022-12-05 18:47:52,086 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 139 transitions, 368 flow [2022-12-05 18:47:52,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.875) internal successors, (975), 8 states have internal predecessors, (975), 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 18:47:52,086 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:52,086 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, 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 18:47:52,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:47:52,087 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:52,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash -69153037, now seen corresponding path program 1 times [2022-12-05 18:47:52,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:52,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995915828] [2022-12-05 18:47:52,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:52,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:52,234 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 18:47:52,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:52,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995915828] [2022-12-05 18:47:52,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995915828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:52,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:52,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-05 18:47:52,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81463421] [2022-12-05 18:47:52,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:52,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-05 18:47:52,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:52,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-05 18:47:52,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-05 18:47:52,239 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 162 [2022-12-05 18:47:52,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 139 transitions, 368 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 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 18:47:52,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:52,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 162 [2022-12-05 18:47:52,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:52,487 INFO L130 PetriNetUnfolder]: 40/344 cut-off events. [2022-12-05 18:47:52,487 INFO L131 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2022-12-05 18:47:52,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 344 events. 40/344 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1094 event pairs, 18 based on Foata normal form. 4/342 useless extension candidates. Maximal degree in co-relation 726. Up to 63 conditions per place. [2022-12-05 18:47:52,488 INFO L137 encePairwiseOnDemand]: 146/162 looper letters, 22 selfloop transitions, 14 changer transitions 17/158 dead transitions. [2022-12-05 18:47:52,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 158 transitions, 590 flow [2022-12-05 18:47:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:47:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:47:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2009 transitions. [2022-12-05 18:47:52,490 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7294843863471314 [2022-12-05 18:47:52,491 INFO L175 Difference]: Start difference. First operand has 159 places, 139 transitions, 368 flow. Second operand 17 states and 2009 transitions. [2022-12-05 18:47:52,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 158 transitions, 590 flow [2022-12-05 18:47:52,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 158 transitions, 538 flow, removed 12 selfloop flow, removed 8 redundant places. [2022-12-05 18:47:52,494 INFO L231 Difference]: Finished difference. Result has 174 places, 141 transitions, 402 flow [2022-12-05 18:47:52,494 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=402, PETRI_PLACES=174, PETRI_TRANSITIONS=141} [2022-12-05 18:47:52,494 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 18 predicate places. [2022-12-05 18:47:52,494 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 141 transitions, 402 flow [2022-12-05 18:47:52,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 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 18:47:52,495 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:52,495 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, 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 18:47:52,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 18:47:52,496 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 18:47:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:52,496 INFO L85 PathProgramCache]: Analyzing trace with hash -338335929, now seen corresponding path program 1 times [2022-12-05 18:47:52,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:52,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820474790] [2022-12-05 18:47:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:52,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:52,776 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 18:47:52,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:52,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820474790] [2022-12-05 18:47:52,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820474790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:52,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:52,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:52,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115016991] [2022-12-05 18:47:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:52,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:52,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:52,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:52,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:52,778 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-05 18:47:52,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 141 transitions, 402 flow. Second operand has 8 states, 8 states have (on average 122.75) internal successors, (982), 8 states have internal predecessors, (982), 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 18:47:52,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:52,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-05 18:47:52,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:52,858 INFO L130 PetriNetUnfolder]: 8/165 cut-off events. [2022-12-05 18:47:52,859 INFO L131 PetriNetUnfolder]: For 100/101 co-relation queries the response was YES. [2022-12-05 18:47:52,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 165 events. 8/165 cut-off events. For 100/101 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 7/170 useless extension candidates. Maximal degree in co-relation 280. Up to 25 conditions per place. [2022-12-05 18:47:52,860 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 0 selfloop transitions, 0 changer transitions 131/131 dead transitions. [2022-12-05 18:47:52,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 131 transitions, 440 flow [2022-12-05 18:47:52,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:47:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:47:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 752 transitions. [2022-12-05 18:47:52,861 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7736625514403292 [2022-12-05 18:47:52,861 INFO L175 Difference]: Start difference. First operand has 174 places, 141 transitions, 402 flow. Second operand 6 states and 752 transitions. [2022-12-05 18:47:52,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 131 transitions, 440 flow [2022-12-05 18:47:52,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 131 transitions, 402 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-12-05 18:47:52,863 INFO L231 Difference]: Finished difference. Result has 148 places, 0 transitions, 0 flow [2022-12-05 18:47:52,863 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=148, PETRI_TRANSITIONS=0} [2022-12-05 18:47:52,863 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, -8 predicate places. [2022-12-05 18:47:52,863 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 0 transitions, 0 flow [2022-12-05 18:47:52,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 122.75) internal successors, (982), 8 states have internal predecessors, (982), 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 18:47:52,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-12-05 18:47:52,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-05 18:47:52,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-05 18:47:52,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-05 18:47:52,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-05 18:47:52,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-05 18:47:52,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-05 18:47:52,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 18:47:52,869 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:52,872 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:47:52,872 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:47:52,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:47:52 BasicIcfg [2022-12-05 18:47:52,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:47:52,876 INFO L158 Benchmark]: Toolchain (without parser) took 6900.97ms. Allocated memory was 186.6MB in the beginning and 358.6MB in the end (delta: 172.0MB). Free memory was 161.5MB in the beginning and 215.0MB in the end (delta: -53.5MB). Peak memory consumption was 119.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:52,876 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:47:52,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.82ms. Allocated memory is still 186.6MB. Free memory was 161.5MB in the beginning and 141.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 18:47:52,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.46ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 139.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:47:52,878 INFO L158 Benchmark]: Boogie Preprocessor took 34.87ms. Allocated memory is still 186.6MB. Free memory was 139.0MB in the beginning and 137.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:52,878 INFO L158 Benchmark]: RCFGBuilder took 359.13ms. Allocated memory is still 186.6MB. Free memory was 137.5MB in the beginning and 120.1MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-05 18:47:52,878 INFO L158 Benchmark]: TraceAbstraction took 6107.49ms. Allocated memory was 186.6MB in the beginning and 358.6MB in the end (delta: 172.0MB). Free memory was 119.1MB in the beginning and 215.0MB in the end (delta: -95.9MB). Peak memory consumption was 76.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:52,879 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 186.6MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 353.82ms. Allocated memory is still 186.6MB. Free memory was 161.5MB in the beginning and 141.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.46ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 139.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.87ms. Allocated memory is still 186.6MB. Free memory was 139.0MB in the beginning and 137.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 359.13ms. Allocated memory is still 186.6MB. Free memory was 137.5MB in the beginning and 120.1MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 6107.49ms. Allocated memory was 186.6MB in the beginning and 358.6MB in the end (delta: 172.0MB). Free memory was 119.1MB in the beginning and 215.0MB in the end (delta: -95.9MB). Peak memory consumption was 76.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 223 locations, 7 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: 6.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1276 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1276 mSDsluCounter, 1844 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1522 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1446 IncrementalHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 322 mSDtfsCounter, 1446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=943occurred in iteration=6, InterpolantAutomatonStates: 159, 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, 2.3s InterpolantComputationTime, 1048 NumberOfCodeBlocks, 1048 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1037 ConstructedInterpolants, 0 QuantifiedInterpolants, 5091 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:47:52,910 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...