/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:56:48,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:56:48,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:56:48,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 01:56:48,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 01:56:48,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 01:56:48,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 01:56:48,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 01:56:48,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 01:56:48,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 01:56:48,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 01:56:48,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 01:56:48,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:56:48,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:56:48,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:56:48,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:56:48,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:56:48,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:56:48,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:56:48,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:56:48,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:56:48,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:56:48,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:56:48,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:56:48,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 01:56:48,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 01:56:48,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 01:56:48,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 01:56:48,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 01:56:48,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-01-28 01:56:48,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:56:48,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:56:48,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:56:48,451 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-VariableLbe.epf [2023-01-28 01:56:48,464 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:56:48,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:56:48,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:56:48,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:56:48,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:56:48,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:56:48,466 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:56:48,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:56:48,466 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:56:48,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:56:48,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:56:48,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:56:48,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:56:48,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:56:48,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:56:48,467 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:56:48,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:56:48,467 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:56:48,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:56:48,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:56:48,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:56:48,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:56:48,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:56:48,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:56:48,469 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:56:48,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:56:48,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:56:48,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:56:48,660 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:56:48,661 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:56:48,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i [2023-01-28 01:56:49,619 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:56:49,798 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:56:49,799 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i [2023-01-28 01:56:49,807 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f010b9a/c10be94948f1460faeb7bcd653f4af86/FLAG7c875b098 [2023-01-28 01:56:49,816 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f010b9a/c10be94948f1460faeb7bcd653f4af86 [2023-01-28 01:56:49,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:56:49,818 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:56:49,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:56:49,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:56:49,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:56:49,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:56:49" (1/1) ... [2023-01-28 01:56:49,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f60bde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:49, skipping insertion in model container [2023-01-28 01:56:49,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:56:49" (1/1) ... [2023-01-28 01:56:49,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:56:49,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:56:50,105 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2023-01-28 01:56:50,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:56:50,142 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:56:50,180 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2023-01-28 01:56:50,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:56:50,268 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:56:50,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50 WrapperNode [2023-01-28 01:56:50,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:56:50,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:56:50,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:56:50,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:56:50,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,302 INFO L138 Inliner]: procedures = 278, calls = 54, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 206 [2023-01-28 01:56:50,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:56:50,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:56:50,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:56:50,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:56:50,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:56:50,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:56:50,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:56:50,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:56:50,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (1/1) ... [2023-01-28 01:56:50,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:56:50,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:56:50,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 01:56:50,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 01:56:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:56:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 01:56:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-28 01:56:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-28 01:56:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:56:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-28 01:56:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:56:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:56:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:56:50,416 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:56:50,533 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:56:50,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:56:50,769 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:56:50,774 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:56:50,775 INFO L302 CfgBuilder]: Removed 15 assume(true) statements. [2023-01-28 01:56:50,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:56:50 BoogieIcfgContainer [2023-01-28 01:56:50,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:56:50,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:56:50,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:56:50,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:56:50,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:56:49" (1/3) ... [2023-01-28 01:56:50,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0f7126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:56:50, skipping insertion in model container [2023-01-28 01:56:50,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:56:50" (2/3) ... [2023-01-28 01:56:50,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0f7126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:56:50, skipping insertion in model container [2023-01-28 01:56:50,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:56:50" (3/3) ... [2023-01-28 01:56:50,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2023-01-28 01:56:50,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:56:50,807 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 01:56:50,807 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:56:50,893 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-28 01:56:50,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 209 transitions, 440 flow [2023-01-28 01:56:51,042 INFO L130 PetriNetUnfolder]: 52/398 cut-off events. [2023-01-28 01:56:51,043 INFO L131 PetriNetUnfolder]: For 8/15 co-relation queries the response was YES. [2023-01-28 01:56:51,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 398 events. 52/398 cut-off events. For 8/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1606 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 205. Up to 8 conditions per place. [2023-01-28 01:56:51,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 209 transitions, 440 flow [2023-01-28 01:56:51,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 207 transitions, 430 flow [2023-01-28 01:56:51,062 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:56:51,077 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 207 transitions, 430 flow [2023-01-28 01:56:51,082 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 207 transitions, 430 flow [2023-01-28 01:56:51,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 207 transitions, 430 flow [2023-01-28 01:56:51,134 INFO L130 PetriNetUnfolder]: 48/386 cut-off events. [2023-01-28 01:56:51,134 INFO L131 PetriNetUnfolder]: For 4/7 co-relation queries the response was YES. [2023-01-28 01:56:51,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 386 events. 48/386 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1533 event pairs, 0 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 193. Up to 8 conditions per place. [2023-01-28 01:56:51,143 INFO L119 LiptonReduction]: Number of co-enabled transitions 12564 [2023-01-28 01:56:55,223 INFO L134 LiptonReduction]: Checked pairs total: 21299 [2023-01-28 01:56:55,223 INFO L136 LiptonReduction]: Total number of compositions: 167 [2023-01-28 01:56:55,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:56:55,239 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;@4e99650c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:56:55,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:56:55,242 INFO L130 PetriNetUnfolder]: 2/24 cut-off events. [2023-01-28 01:56:55,243 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:56:55,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:56:55,243 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 01:56:55,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:56:55,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:56:55,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1532212723, now seen corresponding path program 1 times [2023-01-28 01:56:55,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:56:55,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262257076] [2023-01-28 01:56:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:56:55,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:56:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:56:55,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:56:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:56:55,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:56:55,386 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:56:55,386 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:56:55,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:56:55,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:56:55,388 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:56:55,390 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:56:55,390 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:56:55,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 01:56:55,427 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-01-28 01:56:55,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 323 transitions, 694 flow [2023-01-28 01:56:55,563 INFO L130 PetriNetUnfolder]: 191/1179 cut-off events. [2023-01-28 01:56:55,563 INFO L131 PetriNetUnfolder]: For 72/95 co-relation queries the response was YES. [2023-01-28 01:56:55,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 1179 events. 191/1179 cut-off events. For 72/95 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7271 event pairs, 2 based on Foata normal form. 0/992 useless extension candidates. Maximal degree in co-relation 745. Up to 32 conditions per place. [2023-01-28 01:56:55,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 323 transitions, 694 flow [2023-01-28 01:56:55,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 290 places, 323 transitions, 694 flow [2023-01-28 01:56:55,592 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:56:55,592 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 290 places, 323 transitions, 694 flow [2023-01-28 01:56:55,592 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 290 places, 323 transitions, 694 flow [2023-01-28 01:56:55,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 323 transitions, 694 flow [2023-01-28 01:56:55,741 INFO L130 PetriNetUnfolder]: 191/1179 cut-off events. [2023-01-28 01:56:55,741 INFO L131 PetriNetUnfolder]: For 72/95 co-relation queries the response was YES. [2023-01-28 01:56:55,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 1179 events. 191/1179 cut-off events. For 72/95 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7271 event pairs, 2 based on Foata normal form. 0/992 useless extension candidates. Maximal degree in co-relation 745. Up to 32 conditions per place. [2023-01-28 01:56:55,777 INFO L119 LiptonReduction]: Number of co-enabled transitions 51412 [2023-01-28 01:57:01,627 INFO L134 LiptonReduction]: Checked pairs total: 101735 [2023-01-28 01:57:01,628 INFO L136 LiptonReduction]: Total number of compositions: 249 [2023-01-28 01:57:01,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:57:01,636 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;@4e99650c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:57:01,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:57:01,645 INFO L130 PetriNetUnfolder]: 17/104 cut-off events. [2023-01-28 01:57:01,645 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 01:57:01,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:57:01,646 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 01:57:01,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:57:01,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:57:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash -792283344, now seen corresponding path program 1 times [2023-01-28 01:57:01,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:57:01,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725114086] [2023-01-28 01:57:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:57:01,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:57:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:57:01,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:57:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:57:01,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:57:01,757 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:57:01,757 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:57:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:57:01,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 01:57:01,757 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:57:01,758 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:57:01,758 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:57:01,758 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 01:57:01,816 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2023-01-28 01:57:01,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 437 transitions, 952 flow [2023-01-28 01:57:02,368 INFO L130 PetriNetUnfolder]: 664/3284 cut-off events. [2023-01-28 01:57:02,369 INFO L131 PetriNetUnfolder]: For 419/462 co-relation queries the response was YES. [2023-01-28 01:57:02,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3735 conditions, 3284 events. 664/3284 cut-off events. For 419/462 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 24950 event pairs, 64 based on Foata normal form. 0/2791 useless extension candidates. Maximal degree in co-relation 2153. Up to 192 conditions per place. [2023-01-28 01:57:02,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 389 places, 437 transitions, 952 flow [2023-01-28 01:57:02,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 389 places, 437 transitions, 952 flow [2023-01-28 01:57:02,437 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:57:02,438 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 437 transitions, 952 flow [2023-01-28 01:57:02,438 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 437 transitions, 952 flow [2023-01-28 01:57:02,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 437 transitions, 952 flow [2023-01-28 01:57:02,881 INFO L130 PetriNetUnfolder]: 664/3284 cut-off events. [2023-01-28 01:57:02,881 INFO L131 PetriNetUnfolder]: For 419/462 co-relation queries the response was YES. [2023-01-28 01:57:02,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3735 conditions, 3284 events. 664/3284 cut-off events. For 419/462 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 24950 event pairs, 64 based on Foata normal form. 0/2791 useless extension candidates. Maximal degree in co-relation 2153. Up to 192 conditions per place. [2023-01-28 01:57:03,185 INFO L119 LiptonReduction]: Number of co-enabled transitions 115164 [2023-01-28 01:57:09,678 INFO L134 LiptonReduction]: Checked pairs total: 234918 [2023-01-28 01:57:09,678 INFO L136 LiptonReduction]: Total number of compositions: 331 [2023-01-28 01:57:09,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:57:09,685 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;@4e99650c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:57:09,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:57:09,697 INFO L130 PetriNetUnfolder]: 50/229 cut-off events. [2023-01-28 01:57:09,697 INFO L131 PetriNetUnfolder]: For 33/37 co-relation queries the response was YES. [2023-01-28 01:57:09,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:57:09,697 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 01:57:09,697 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:57:09,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:57:09,698 INFO L85 PathProgramCache]: Analyzing trace with hash 855084516, now seen corresponding path program 1 times [2023-01-28 01:57:09,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:57:09,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463406754] [2023-01-28 01:57:09,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:57:09,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:57:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:57:09,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:57:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:57:09,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:57:09,780 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:57:09,780 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:57:09,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:57:09,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 01:57:09,780 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:57:09,781 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:57:09,781 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:57:09,781 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 01:57:09,822 INFO L144 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2023-01-28 01:57:09,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 488 places, 551 transitions, 1214 flow [2023-01-28 01:57:12,510 INFO L130 PetriNetUnfolder]: 2659/10385 cut-off events. [2023-01-28 01:57:12,510 INFO L131 PetriNetUnfolder]: For 2144/2211 co-relation queries the response was YES. [2023-01-28 01:57:12,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12550 conditions, 10385 events. 2659/10385 cut-off events. For 2144/2211 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 94402 event pairs, 626 based on Foata normal form. 0/8974 useless extension candidates. Maximal degree in co-relation 6700. Up to 1024 conditions per place. [2023-01-28 01:57:12,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 488 places, 551 transitions, 1214 flow [2023-01-28 01:57:12,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 488 places, 551 transitions, 1214 flow [2023-01-28 01:57:12,836 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:57:12,836 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 488 places, 551 transitions, 1214 flow [2023-01-28 01:57:12,837 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 488 places, 551 transitions, 1214 flow [2023-01-28 01:57:12,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 488 places, 551 transitions, 1214 flow [2023-01-28 01:57:15,367 INFO L130 PetriNetUnfolder]: 2659/10385 cut-off events. [2023-01-28 01:57:15,368 INFO L131 PetriNetUnfolder]: For 2144/2211 co-relation queries the response was YES. [2023-01-28 01:57:15,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12550 conditions, 10385 events. 2659/10385 cut-off events. For 2144/2211 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 94402 event pairs, 626 based on Foata normal form. 0/8974 useless extension candidates. Maximal degree in co-relation 6700. Up to 1024 conditions per place. [2023-01-28 01:57:16,083 INFO L119 LiptonReduction]: Number of co-enabled transitions 204280 [2023-01-28 01:57:23,291 INFO L134 LiptonReduction]: Checked pairs total: 456654 [2023-01-28 01:57:23,291 INFO L136 LiptonReduction]: Total number of compositions: 412 [2023-01-28 01:57:23,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:57:23,293 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;@4e99650c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:57:23,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:57:23,314 INFO L130 PetriNetUnfolder]: 102/414 cut-off events. [2023-01-28 01:57:23,314 INFO L131 PetriNetUnfolder]: For 86/94 co-relation queries the response was YES. [2023-01-28 01:57:23,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:57:23,314 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 01:57:23,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:57:23,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:57:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash 478432640, now seen corresponding path program 1 times [2023-01-28 01:57:23,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:57:23,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586990884] [2023-01-28 01:57:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:57:23,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:57:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:57:23,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:57:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:57:23,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:57:23,411 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:57:23,411 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:57:23,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:57:23,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 01:57:23,411 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:57:23,412 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:57:23,412 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:57:23,412 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 01:57:23,474 INFO L144 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2023-01-28 01:57:23,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 587 places, 665 transitions, 1480 flow [2023-01-28 01:57:36,006 INFO L130 PetriNetUnfolder]: 11792/38034 cut-off events. [2023-01-28 01:57:36,006 INFO L131 PetriNetUnfolder]: For 10450/10545 co-relation queries the response was YES. [2023-01-28 01:57:37,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48460 conditions, 38034 events. 11792/38034 cut-off events. For 10450/10545 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 412843 event pairs, 4296 based on Foata normal form. 0/33365 useless extension candidates. Maximal degree in co-relation 24325. Up to 5120 conditions per place. [2023-01-28 01:57:37,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 587 places, 665 transitions, 1480 flow [2023-01-28 01:57:38,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 587 places, 665 transitions, 1480 flow [2023-01-28 01:57:38,348 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:57:38,349 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 587 places, 665 transitions, 1480 flow [2023-01-28 01:57:38,349 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 587 places, 665 transitions, 1480 flow [2023-01-28 01:57:38,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 587 places, 665 transitions, 1480 flow [2023-01-28 01:57:51,047 INFO L130 PetriNetUnfolder]: 11792/38034 cut-off events. [2023-01-28 01:57:51,048 INFO L131 PetriNetUnfolder]: For 10450/10545 co-relation queries the response was YES. [2023-01-28 01:57:52,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48460 conditions, 38034 events. 11792/38034 cut-off events. For 10450/10545 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 412843 event pairs, 4296 based on Foata normal form. 0/33365 useless extension candidates. Maximal degree in co-relation 24325. Up to 5120 conditions per place. [2023-01-28 01:57:56,257 INFO L119 LiptonReduction]: Number of co-enabled transitions 318760 [2023-01-28 01:58:03,835 INFO L134 LiptonReduction]: Checked pairs total: 731967 [2023-01-28 01:58:03,836 INFO L136 LiptonReduction]: Total number of compositions: 505 [2023-01-28 01:58:03,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:58:03,838 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;@4e99650c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:58:03,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:58:03,875 INFO L130 PetriNetUnfolder]: 179/677 cut-off events. [2023-01-28 01:58:03,875 INFO L131 PetriNetUnfolder]: For 181/191 co-relation queries the response was YES. [2023-01-28 01:58:03,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:58:03,875 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:58:03,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:58:03,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:58:03,876 INFO L85 PathProgramCache]: Analyzing trace with hash -938277164, now seen corresponding path program 1 times [2023-01-28 01:58:03,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:58:03,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341076814] [2023-01-28 01:58:03,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:58:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:58:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:58:03,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:58:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:58:03,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:58:03,925 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:58:03,926 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:58:03,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:58:03,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 01:58:03,926 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:58:03,927 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:58:03,928 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:58:03,928 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 01:58:03,981 INFO L144 ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions. [2023-01-28 01:58:03,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 686 places, 779 transitions, 1750 flow [2023-01-28 01:59:11,815 INFO L130 PetriNetUnfolder]: 53983/151895 cut-off events. [2023-01-28 01:59:11,816 INFO L131 PetriNetUnfolder]: For 49552/49679 co-relation queries the response was YES. [2023-01-28 01:59:25,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201324 conditions, 151895 events. 53983/151895 cut-off events. For 49552/49679 co-relation queries the response was YES. Maximal size of possible extension queue 1981. Compared 1915862 event pairs, 24930 based on Foata normal form. 0/134716 useless extension candidates. Maximal degree in co-relation 98231. Up to 24576 conditions per place. [2023-01-28 01:59:25,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 686 places, 779 transitions, 1750 flow [2023-01-28 01:59:28,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 686 places, 779 transitions, 1750 flow [2023-01-28 01:59:28,980 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:59:28,980 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 686 places, 779 transitions, 1750 flow [2023-01-28 01:59:28,980 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 686 places, 779 transitions, 1750 flow [2023-01-28 01:59:28,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 686 places, 779 transitions, 1750 flow [2023-01-28 02:00:37,189 INFO L130 PetriNetUnfolder]: 53983/151895 cut-off events. [2023-01-28 02:00:37,189 INFO L131 PetriNetUnfolder]: For 49552/49679 co-relation queries the response was YES. [2023-01-28 02:00:52,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201324 conditions, 151895 events. 53983/151895 cut-off events. For 49552/49679 co-relation queries the response was YES. Maximal size of possible extension queue 1981. Compared 1915862 event pairs, 24930 based on Foata normal form. 0/134716 useless extension candidates. Maximal degree in co-relation 98231. Up to 24576 conditions per place. [2023-01-28 02:01:15,810 INFO L119 LiptonReduction]: Number of co-enabled transitions 458604 [2023-01-28 02:01:24,268 INFO L134 LiptonReduction]: Checked pairs total: 1055502 [2023-01-28 02:01:24,268 INFO L136 LiptonReduction]: Total number of compositions: 586 [2023-01-28 02:01:24,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 02:01:24,270 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;@4e99650c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 02:01:24,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 02:01:24,339 INFO L130 PetriNetUnfolder]: 292/1053 cut-off events. [2023-01-28 02:01:24,339 INFO L131 PetriNetUnfolder]: For 342/350 co-relation queries the response was YES. [2023-01-28 02:01:24,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:01:24,339 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:01:24,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:01:24,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:01:24,340 INFO L85 PathProgramCache]: Analyzing trace with hash -672620518, now seen corresponding path program 1 times [2023-01-28 02:01:24,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:01:24,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775516229] [2023-01-28 02:01:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:01:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:01:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:01:24,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 02:01:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:01:24,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 02:01:24,380 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 02:01:24,380 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 02:01:24,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 02:01:24,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 02:01:24,381 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 02:01:24,381 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 02:01:24,381 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 02:01:24,381 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 02:01:24,441 INFO L144 ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions. [2023-01-28 02:01:24,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 785 places, 893 transitions, 2024 flow