/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_86-lists_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 02:01:13,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 02:01:13,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 02:01:13,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 02:01:13,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 02:01:13,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 02:01:13,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 02:01:13,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 02:01:13,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 02:01:13,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 02:01:13,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 02:01:13,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 02:01:13,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 02:01:13,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 02:01:13,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 02:01:13,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 02:01:13,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 02:01:13,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 02:01:13,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 02:01:13,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 02:01:13,191 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 02:01:13,225 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 02:01:13,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 02:01:13,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 02:01:13,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 02:01:13,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 02:01:13,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 02:01:13,226 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 02:01:13,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 02:01:13,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 02:01:13,228 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 02:01:13,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 02:01:13,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 02:01:13,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 02:01:13,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 02:01:13,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 02:01:13,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:01:13,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 02:01:13,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 02:01:13,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 02:01:13,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 02:01:13,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 02:01:13,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 02:01:13,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 02:01:13,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 02:01:13,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 02:01:13,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 02:01:13,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 02:01:13,464 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 02:01:13,465 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 02:01:13,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i [2023-01-28 02:01:14,587 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 02:01:14,907 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 02:01:14,908 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i [2023-01-28 02:01:14,923 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a44cc6be/a8e7c6dc535641d78c0a23dafa728ce7/FLAGd9f624784 [2023-01-28 02:01:14,936 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a44cc6be/a8e7c6dc535641d78c0a23dafa728ce7 [2023-01-28 02:01:14,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 02:01:14,944 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 02:01:14,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 02:01:14,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 02:01:14,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 02:01:14,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:01:14" (1/1) ... [2023-01-28 02:01:14,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270eadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:14, skipping insertion in model container [2023-01-28 02:01:14,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:01:14" (1/1) ... [2023-01-28 02:01:14,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 02:01:15,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 02:01:15,350 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_86-lists_racing.i[47038,47051] [2023-01-28 02:01:15,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:01:15,481 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 02:01:15,530 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_86-lists_racing.i[47038,47051] [2023-01-28 02:01:15,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:01:15,609 INFO L208 MainTranslator]: Completed translation [2023-01-28 02:01:15,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15 WrapperNode [2023-01-28 02:01:15,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 02:01:15,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 02:01:15,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 02:01:15,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 02:01:15,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,674 INFO L138 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2023-01-28 02:01:15,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 02:01:15,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 02:01:15,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 02:01:15,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 02:01:15,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 02:01:15,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 02:01:15,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 02:01:15,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 02:01:15,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (1/1) ... [2023-01-28 02:01:15,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:01:15,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:01:15,766 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 02:01:15,779 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 02:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 02:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 02:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-28 02:01:15,807 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-28 02:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 02:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 02:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-28 02:01:15,808 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-28 02:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 02:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 02:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 02:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 02:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 02:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 02:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 02:01:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 02:01:15,811 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 02:01:16,008 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 02:01:16,010 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 02:01:16,351 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 02:01:16,360 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 02:01:16,360 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-01-28 02:01:16,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:01:16 BoogieIcfgContainer [2023-01-28 02:01:16,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 02:01:16,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 02:01:16,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 02:01:16,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 02:01:16,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:01:14" (1/3) ... [2023-01-28 02:01:16,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7f90f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:01:16, skipping insertion in model container [2023-01-28 02:01:16,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:01:15" (2/3) ... [2023-01-28 02:01:16,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7f90f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:01:16, skipping insertion in model container [2023-01-28 02:01:16,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:01:16" (3/3) ... [2023-01-28 02:01:16,369 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i [2023-01-28 02:01:16,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 02:01:16,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 02:01:16,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 02:01:16,508 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-28 02:01:16,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 233 transitions, 488 flow [2023-01-28 02:01:16,659 INFO L130 PetriNetUnfolder]: 54/435 cut-off events. [2023-01-28 02:01:16,659 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2023-01-28 02:01:16,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 435 events. 54/435 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1721 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 215. Up to 8 conditions per place. [2023-01-28 02:01:16,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 233 transitions, 488 flow [2023-01-28 02:01:16,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 231 transitions, 478 flow [2023-01-28 02:01:16,688 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 02:01:16,697 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 231 transitions, 478 flow [2023-01-28 02:01:16,699 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 231 transitions, 478 flow [2023-01-28 02:01:16,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 231 transitions, 478 flow [2023-01-28 02:01:16,794 INFO L130 PetriNetUnfolder]: 50/423 cut-off events. [2023-01-28 02:01:16,794 INFO L131 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2023-01-28 02:01:16,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 423 events. 50/423 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1639 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2023-01-28 02:01:16,810 INFO L119 LiptonReduction]: Number of co-enabled transitions 15880 [2023-01-28 02:01:21,879 INFO L134 LiptonReduction]: Checked pairs total: 24331 [2023-01-28 02:01:21,879 INFO L136 LiptonReduction]: Total number of compositions: 184 [2023-01-28 02:01:21,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 02:01:21,902 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;@7c889835, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 02:01:21,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 02:01:21,907 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-01-28 02:01:21,907 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:01:21,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:01:21,908 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-01-28 02:01:21,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:01:21,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:01:21,915 INFO L85 PathProgramCache]: Analyzing trace with hash -438899358, now seen corresponding path program 1 times [2023-01-28 02:01:21,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:01:21,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87715182] [2023-01-28 02:01:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:01:21,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:01:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:01:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:22,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:01:22,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87715182] [2023-01-28 02:01:22,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87715182] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:01:22,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:01:22,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 02:01:22,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363243220] [2023-01-28 02:01:22,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:01:22,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 02:01:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:01:22,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 02:01:22,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 02:01:22,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 417 [2023-01-28 02:01:22,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 65 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:22,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:01:22,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 417 [2023-01-28 02:01:22,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:01:22,893 INFO L130 PetriNetUnfolder]: 3305/5516 cut-off events. [2023-01-28 02:01:22,893 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2023-01-28 02:01:22,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10754 conditions, 5516 events. 3305/5516 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 30891 event pairs, 3078 based on Foata normal form. 276/4857 useless extension candidates. Maximal degree in co-relation 9713. Up to 5166 conditions per place. [2023-01-28 02:01:22,907 INFO L137 encePairwiseOnDemand]: 403/417 looper letters, 38 selfloop transitions, 2 changer transitions 9/55 dead transitions. [2023-01-28 02:01:22,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 55 transitions, 224 flow [2023-01-28 02:01:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 02:01:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 02:01:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2023-01-28 02:01:22,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530775379696243 [2023-01-28 02:01:22,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 664 transitions. [2023-01-28 02:01:22,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 664 transitions. [2023-01-28 02:01:22,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:01:22,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 664 transitions. [2023-01-28 02:01:22,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:22,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:22,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:22,948 INFO L175 Difference]: Start difference. First operand has 54 places, 65 transitions, 146 flow. Second operand 3 states and 664 transitions. [2023-01-28 02:01:22,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 55 transitions, 224 flow [2023-01-28 02:01:22,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 55 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 02:01:22,958 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 112 flow [2023-01-28 02:01:22,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2023-01-28 02:01:22,963 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-01-28 02:01:22,963 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 112 flow [2023-01-28 02:01:22,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:22,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:01:22,965 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-01-28 02:01:22,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 02:01:22,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:01:22,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:01:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1830623665, now seen corresponding path program 1 times [2023-01-28 02:01:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:01:22,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238539921] [2023-01-28 02:01:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:01:22,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:01:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:01:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:23,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:01:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238539921] [2023-01-28 02:01:23,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238539921] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:01:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891858230] [2023-01-28 02:01:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:01:23,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:01:23,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:01:23,072 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:01:23,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 02:01:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:01:23,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-01-28 02:01:23,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:01:23,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:23,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:01:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:23,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891858230] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:01:23,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:01:23,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-28 02:01:23,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371692515] [2023-01-28 02:01:23,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:01:23,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 02:01:23,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:01:23,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 02:01:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-01-28 02:01:23,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 417 [2023-01-28 02:01:23,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 112 flow. Second operand has 7 states, 7 states have (on average 202.57142857142858) internal successors, (1418), 7 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:23,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:01:23,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 417 [2023-01-28 02:01:23,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:01:23,545 INFO L130 PetriNetUnfolder]: 1331/2313 cut-off events. [2023-01-28 02:01:23,545 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-01-28 02:01:23,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4508 conditions, 2313 events. 1331/2313 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11273 event pairs, 1250 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 4495. Up to 2152 conditions per place. [2023-01-28 02:01:23,555 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 38 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2023-01-28 02:01:23,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 210 flow [2023-01-28 02:01:23,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 02:01:23,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 02:01:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1252 transitions. [2023-01-28 02:01:23,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5003996802557954 [2023-01-28 02:01:23,560 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1252 transitions. [2023-01-28 02:01:23,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1252 transitions. [2023-01-28 02:01:23,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:01:23,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1252 transitions. [2023-01-28 02:01:23,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:23,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:23,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:23,569 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 112 flow. Second operand 6 states and 1252 transitions. [2023-01-28 02:01:23,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 210 flow [2023-01-28 02:01:23,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 206 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 02:01:23,572 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 144 flow [2023-01-28 02:01:23,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2023-01-28 02:01:23,573 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-01-28 02:01:23,573 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 144 flow [2023-01-28 02:01:23,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 202.57142857142858) internal successors, (1418), 7 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:23,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:01:23,575 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-01-28 02:01:23,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 02:01:23,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:01:23,783 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:01:23,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:01:23,784 INFO L85 PathProgramCache]: Analyzing trace with hash -981188446, now seen corresponding path program 2 times [2023-01-28 02:01:23,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:01:23,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098557734] [2023-01-28 02:01:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:01:23,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:01:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:01:24,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:24,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:01:24,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098557734] [2023-01-28 02:01:24,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098557734] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:01:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384963706] [2023-01-28 02:01:24,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 02:01:24,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:01:24,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:01:24,046 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:01:24,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 02:01:24,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 02:01:24,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 02:01:24,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-28 02:01:24,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:01:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:24,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:01:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:24,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384963706] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:01:24,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:01:24,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-01-28 02:01:24,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658904071] [2023-01-28 02:01:24,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:01:24,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-28 02:01:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:01:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-28 02:01:24,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-01-28 02:01:24,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 417 [2023-01-28 02:01:24,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 144 flow. Second operand has 13 states, 13 states have (on average 202.30769230769232) internal successors, (2630), 13 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:24,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:01:24,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 417 [2023-01-28 02:01:24,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:01:24,670 INFO L130 PetriNetUnfolder]: 1331/2319 cut-off events. [2023-01-28 02:01:24,671 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-28 02:01:24,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4545 conditions, 2319 events. 1331/2319 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11280 event pairs, 1250 based on Foata normal form. 6/1977 useless extension candidates. Maximal degree in co-relation 4486. Up to 2152 conditions per place. [2023-01-28 02:01:24,682 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 38 selfloop transitions, 11 changer transitions 0/55 dead transitions. [2023-01-28 02:01:24,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 55 transitions, 278 flow [2023-01-28 02:01:24,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 02:01:24,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 02:01:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2467 transitions. [2023-01-28 02:01:24,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2023-01-28 02:01:24,688 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2467 transitions. [2023-01-28 02:01:24,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2467 transitions. [2023-01-28 02:01:24,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:01:24,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2467 transitions. [2023-01-28 02:01:24,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 205.58333333333334) internal successors, (2467), 12 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:24,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:24,704 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:24,704 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 144 flow. Second operand 12 states and 2467 transitions. [2023-01-28 02:01:24,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 55 transitions, 278 flow [2023-01-28 02:01:24,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 55 transitions, 264 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-01-28 02:01:24,707 INFO L231 Difference]: Finished difference. Result has 73 places, 55 transitions, 214 flow [2023-01-28 02:01:24,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=214, PETRI_PLACES=73, PETRI_TRANSITIONS=55} [2023-01-28 02:01:24,708 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 19 predicate places. [2023-01-28 02:01:24,708 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 55 transitions, 214 flow [2023-01-28 02:01:24,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 202.30769230769232) internal successors, (2630), 13 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:01:24,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:01:24,709 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-01-28 02:01:24,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 02:01:24,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-01-28 02:01:24,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:01:24,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:01:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1179815550, now seen corresponding path program 3 times [2023-01-28 02:01:24,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:01:24,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869768662] [2023-01-28 02:01:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:01:24,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:01:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:01:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:01:25,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:01:25,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869768662] [2023-01-28 02:01:25,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869768662] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:01:25,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180493735] [2023-01-28 02:01:25,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 02:01:25,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:01:25,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:01:25,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:01:25,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 02:06:57,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-01-28 02:06:57,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 02:06:57,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-28 02:06:57,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:06:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:06:57,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:06:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:06:57,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180493735] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:06:57,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:06:57,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-01-28 02:06:57,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783452775] [2023-01-28 02:06:57,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:06:57,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-28 02:06:57,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:06:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-28 02:06:57,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-01-28 02:06:57,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 417 [2023-01-28 02:06:57,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 55 transitions, 214 flow. Second operand has 25 states, 25 states have (on average 202.16) internal successors, (5054), 25 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:06:57,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:06:57,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 417 [2023-01-28 02:06:57,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:06:58,143 INFO L130 PetriNetUnfolder]: 1331/2331 cut-off events. [2023-01-28 02:06:58,143 INFO L131 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2023-01-28 02:06:58,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4629 conditions, 2331 events. 1331/2331 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11277 event pairs, 1250 based on Foata normal form. 12/1995 useless extension candidates. Maximal degree in co-relation 4492. Up to 2152 conditions per place. [2023-01-28 02:06:58,156 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 38 selfloop transitions, 23 changer transitions 0/67 dead transitions. [2023-01-28 02:06:58,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 67 transitions, 432 flow [2023-01-28 02:06:58,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 02:06:58,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 02:06:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4897 transitions. [2023-01-28 02:06:58,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.489308553157474 [2023-01-28 02:06:58,211 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4897 transitions. [2023-01-28 02:06:58,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4897 transitions. [2023-01-28 02:06:58,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:06:58,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4897 transitions. [2023-01-28 02:06:58,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 204.04166666666666) internal successors, (4897), 24 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:06:58,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 417.0) internal successors, (10425), 25 states have internal predecessors, (10425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:06:58,240 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 417.0) internal successors, (10425), 25 states have internal predecessors, (10425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:06:58,240 INFO L175 Difference]: Start difference. First operand has 73 places, 55 transitions, 214 flow. Second operand 24 states and 4897 transitions. [2023-01-28 02:06:58,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 67 transitions, 432 flow [2023-01-28 02:06:58,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 67 transitions, 360 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-01-28 02:06:58,247 INFO L231 Difference]: Finished difference. Result has 103 places, 67 transitions, 334 flow [2023-01-28 02:06:58,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=334, PETRI_PLACES=103, PETRI_TRANSITIONS=67} [2023-01-28 02:06:58,249 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 49 predicate places. [2023-01-28 02:06:58,249 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 67 transitions, 334 flow [2023-01-28 02:06:58,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 202.16) internal successors, (5054), 25 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:06:58,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:06:58,253 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2023-01-28 02:06:58,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 02:06:58,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:06:58,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:06:58,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:06:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash -500343998, now seen corresponding path program 4 times [2023-01-28 02:06:58,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:06:58,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669484528] [2023-01-28 02:06:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:06:58,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:06:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:06:59,590 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:06:59,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:06:59,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669484528] [2023-01-28 02:06:59,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669484528] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:06:59,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125394961] [2023-01-28 02:06:59,591 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 02:06:59,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:06:59,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:06:59,592 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:06:59,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 02:07:00,015 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 02:07:00,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 02:07:00,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 24 conjunts are in the unsatisfiable core [2023-01-28 02:07:00,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:07:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:07:00,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:07:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:07:00,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125394961] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:07:00,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:07:00,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-01-28 02:07:00,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185857212] [2023-01-28 02:07:00,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:07:00,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-01-28 02:07:00,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:07:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-01-28 02:07:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-01-28 02:07:00,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 417 [2023-01-28 02:07:00,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 67 transitions, 334 flow. Second operand has 49 states, 49 states have (on average 202.08163265306123) internal successors, (9902), 49 states have internal predecessors, (9902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:07:00,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:07:00,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 417 [2023-01-28 02:07:00,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:07:01,391 INFO L130 PetriNetUnfolder]: 1331/2355 cut-off events. [2023-01-28 02:07:01,391 INFO L131 PetriNetUnfolder]: For 5241/5241 co-relation queries the response was YES. [2023-01-28 02:07:01,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4773 conditions, 2355 events. 1331/2355 cut-off events. For 5241/5241 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11279 event pairs, 1250 based on Foata normal form. 24/2031 useless extension candidates. Maximal degree in co-relation 4504. Up to 2152 conditions per place. [2023-01-28 02:07:01,402 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 38 selfloop transitions, 47 changer transitions 0/91 dead transitions. [2023-01-28 02:07:01,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 91 transitions, 696 flow [2023-01-28 02:07:01,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-01-28 02:07:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-01-28 02:07:01,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9757 transitions. [2023-01-28 02:07:01,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48746003197442045 [2023-01-28 02:07:01,423 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 9757 transitions. [2023-01-28 02:07:01,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 9757 transitions. [2023-01-28 02:07:01,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:07:01,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 9757 transitions. [2023-01-28 02:07:01,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 203.27083333333334) internal successors, (9757), 48 states have internal predecessors, (9757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:07:01,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 417.0) internal successors, (20433), 49 states have internal predecessors, (20433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:07:01,473 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 417.0) internal successors, (20433), 49 states have internal predecessors, (20433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:07:01,474 INFO L175 Difference]: Start difference. First operand has 103 places, 67 transitions, 334 flow. Second operand 48 states and 9757 transitions. [2023-01-28 02:07:01,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 91 transitions, 696 flow [2023-01-28 02:07:01,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 91 transitions, 552 flow, removed 61 selfloop flow, removed 11 redundant places. [2023-01-28 02:07:01,481 INFO L231 Difference]: Finished difference. Result has 163 places, 91 transitions, 574 flow [2023-01-28 02:07:01,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=574, PETRI_PLACES=163, PETRI_TRANSITIONS=91} [2023-01-28 02:07:01,481 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 109 predicate places. [2023-01-28 02:07:01,482 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 91 transitions, 574 flow [2023-01-28 02:07:01,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 202.08163265306123) internal successors, (9902), 49 states have internal predecessors, (9902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:07:01,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:07:01,484 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 2, 1, 1, 1, 1, 1] [2023-01-28 02:07:01,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 02:07:01,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:07:01,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:07:01,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:07:01,694 INFO L85 PathProgramCache]: Analyzing trace with hash -584364350, now seen corresponding path program 5 times [2023-01-28 02:07:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:07:01,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830703379] [2023-01-28 02:07:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:07:01,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:07:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:07:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 02:07:05,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:07:05,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830703379] [2023-01-28 02:07:05,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830703379] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:07:05,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697647490] [2023-01-28 02:07:05,028 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-28 02:07:05,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:07:05,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:07:05,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:07:05,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-01-28 02:15:48,863 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 02:15:48,863 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 02:15:49,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-01-28 02:15:50,064 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-01-28 02:15:50,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-01-28 02:15:50,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-01-28 02:15:50,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-01-28 02:15:50,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2023-01-28 02:15:50,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975123845] [2023-01-28 02:15:50,093 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-01-28 02:15:50,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-01-28 02:15:50,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:15:50,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-01-28 02:15:50,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-01-28 02:15:50,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 417 [2023-01-28 02:15:50,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 91 transitions, 574 flow. Second operand has 49 states, 49 states have (on average 202.0408163265306) internal successors, (9900), 49 states have internal predecessors, (9900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 02:15:50,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:15:50,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 417 [2023-01-28 02:15:50,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:15:50,115 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 02:15:50,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 02:15:50,118 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-28 02:15:50,122 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 02:15:50,122 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1] [2023-01-28 02:15:50,126 INFO L307 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT,TIMEOUT (1/2) [2023-01-28 02:15:50,127 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 02:15:50,128 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 02:15:50,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:15:50 BasicIcfg [2023-01-28 02:15:50,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 02:15:50,134 INFO L158 Benchmark]: Toolchain (without parser) took 875187.45ms. Allocated memory was 369.1MB in the beginning and 534.8MB in the end (delta: 165.7MB). Free memory was 337.4MB in the beginning and 317.8MB in the end (delta: 19.6MB). Peak memory consumption was 188.2MB. Max. memory is 16.0GB. [2023-01-28 02:15:50,134 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 02:15:50,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.46ms. Allocated memory is still 369.1MB. Free memory was 337.2MB in the beginning and 300.6MB in the end (delta: 36.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-01-28 02:15:50,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.21ms. Allocated memory is still 369.1MB. Free memory was 300.6MB in the beginning and 297.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:15:50,137 INFO L158 Benchmark]: Boogie Preprocessor took 50.67ms. Allocated memory is still 369.1MB. Free memory was 297.7MB in the beginning and 295.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:15:50,137 INFO L158 Benchmark]: RCFGBuilder took 635.25ms. Allocated memory is still 369.1MB. Free memory was 295.2MB in the beginning and 338.8MB in the end (delta: -43.5MB). Peak memory consumption was 27.8MB. Max. memory is 16.0GB. [2023-01-28 02:15:50,138 INFO L158 Benchmark]: TraceAbstraction took 873766.96ms. Allocated memory was 369.1MB in the beginning and 534.8MB in the end (delta: 165.7MB). Free memory was 337.8MB in the beginning and 317.8MB in the end (delta: 20.0MB). Peak memory consumption was 185.6MB. Max. memory is 16.0GB. [2023-01-28 02:15:50,141 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 255.9MB. Free memory is still 213.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 664.46ms. Allocated memory is still 369.1MB. Free memory was 337.2MB in the beginning and 300.6MB in the end (delta: 36.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.21ms. Allocated memory is still 369.1MB. Free memory was 300.6MB in the beginning and 297.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 50.67ms. Allocated memory is still 369.1MB. Free memory was 297.7MB in the beginning and 295.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 635.25ms. Allocated memory is still 369.1MB. Free memory was 295.2MB in the beginning and 338.8MB in the end (delta: -43.5MB). Peak memory consumption was 27.8MB. Max. memory is 16.0GB. * TraceAbstraction took 873766.96ms. Allocated memory was 369.1MB in the beginning and 534.8MB in the end (delta: 165.7MB). Free memory was 337.8MB in the beginning and 317.8MB in the end (delta: 20.0MB). Peak memory consumption was 185.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 213 PlacesBefore, 54 PlacesAfterwards, 231 TransitionsBefore, 65 TransitionsAfterwards, 15880 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 112 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 19 ConcurrentYvCompositions, 7 ChoiceCompositions, 184 TotalNumberOfCompositions, 24331 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13248, independent: 12914, independent conditional: 0, independent unconditional: 12914, dependent: 334, dependent conditional: 0, dependent unconditional: 334, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8063, independent: 7976, independent conditional: 0, independent unconditional: 7976, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13248, independent: 4938, independent conditional: 0, independent unconditional: 4938, dependent: 247, dependent conditional: 0, dependent unconditional: 247, unknown: 8063, unknown conditional: 0, unknown unconditional: 8063] , Statistics on independence cache: Total cache size (in pairs): 343, Positive cache size: 309, Positive conditional cache size: 0, Positive unconditional cache size: 309, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1051]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 323 locations, 4 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: 873.6s, OverallIterations: 6, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 706 IncrementalHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 706 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=5, InterpolantAutomatonStates: 93, 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: 0.2s SsaConstructionTime, 332.4s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2961 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 28/2066 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown