/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:00:38,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:00:38,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:00:38,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:00:38,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:00:38,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:00:38,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:00:38,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:00:38,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:00:38,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:00:38,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:00:38,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:00:38,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:00:38,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:00:38,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:00:38,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:00:38,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:00:38,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:00:38,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:00:38,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:00:38,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:00:38,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:00:38,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:00:38,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:00:38,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-12 15:00:38,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:00:38,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:00:38,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:00:38,430 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-SemanticLbe.epf [2022-12-12 15:00:38,448 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:00:38,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:00:38,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:00:38,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:00:38,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:00:38,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:00:38,452 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:00:38,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:00:38,452 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:00:38,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:00:38,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:00:38,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:00:38,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:00:38,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:00:38,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:00:38,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:00:38,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:00:38,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:00:38,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:00:38,721 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:00:38,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-12 15:00:39,766 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:00:40,016 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:00:40,016 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-12 15:00:40,025 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c98f98c/33a27936f0fe4b96bb1d983436ff791f/FLAG609099bb4 [2022-12-12 15:00:40,036 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c98f98c/33a27936f0fe4b96bb1d983436ff791f [2022-12-12 15:00:40,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:00:40,039 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:00:40,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:00:40,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:00:40,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:00:40,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173e156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40, skipping insertion in model container [2022-12-12 15:00:40,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:00:40,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:00:40,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-12 15:00:40,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:00:40,321 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:00:40,332 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-12 15:00:40,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:00:40,398 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:00:40,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40 WrapperNode [2022-12-12 15:00:40,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:00:40,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:00:40,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:00:40,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:00:40,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,455 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-12 15:00:40,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:00:40,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:00:40,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:00:40,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:00:40,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,485 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:00:40,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:00:40,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:00:40,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:00:40,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (1/1) ... [2022-12-12 15:00:40,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:00:40,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:00:40,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 15:00:40,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 15:00:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 15:00:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:00:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 15:00:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:00:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:00:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 15:00:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 15:00:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:00:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:00:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:00:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:00:40,583 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 15:00:40,764 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:00:40,765 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:00:40,959 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:00:40,965 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:00:40,965 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 15:00:40,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:00:40 BoogieIcfgContainer [2022-12-12 15:00:40,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:00:40,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:00:40,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:00:40,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:00:40,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:00:40" (1/3) ... [2022-12-12 15:00:40,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63706bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:00:40, skipping insertion in model container [2022-12-12 15:00:40,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:40" (2/3) ... [2022-12-12 15:00:40,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63706bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:00:40, skipping insertion in model container [2022-12-12 15:00:40,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:00:40" (3/3) ... [2022-12-12 15:00:40,990 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-12 15:00:41,010 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:00:41,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:00:41,010 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:00:41,084 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-12 15:00:41,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 15:00:41,157 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-12 15:00:41,158 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 15:00:41,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-12 15:00:41,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 15:00:41,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:41,172 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:00:41,196 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:41,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:41,208 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-12 15:00:41,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:00:41,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 15:00:41,209 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:41,209 INFO L226 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-12 15:00:43,533 INFO L241 LiptonReduction]: Total number of compositions: 45 [2022-12-12 15:00:43,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:00:43,548 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;@5bcf69f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:00:43,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 15:00:43,550 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-12 15:00:43,550 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:00:43,551 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:00:43,551 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 15:00:43,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:00:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:00:43,555 INFO L85 PathProgramCache]: Analyzing trace with hash 6971877, now seen corresponding path program 1 times [2022-12-12 15:00:43,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:00:43,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029282417] [2022-12-12 15:00:43,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:00:43,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:00:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:00:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:00:43,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:00:43,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029282417] [2022-12-12 15:00:43,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029282417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:00:43,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:00:43,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 15:00:43,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574976561] [2022-12-12 15:00:43,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:00:43,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 15:00:43,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:00:43,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 15:00:43,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 15:00:43,828 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-12 15:00:43,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:00:43,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:00:43,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-12 15:00:43,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:00:43,873 INFO L130 PetriNetUnfolder]: 13/51 cut-off events. [2022-12-12 15:00:43,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:00:43,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 51 events. 13/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 184 event pairs, 10 based on Foata normal form. 9/40 useless extension candidates. Maximal degree in co-relation 92. Up to 31 conditions per place. [2022-12-12 15:00:43,874 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 8 selfloop transitions, 4 changer transitions 5/19 dead transitions. [2022-12-12 15:00:43,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 73 flow [2022-12-12 15:00:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 15:00:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 15:00:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2022-12-12 15:00:43,881 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2022-12-12 15:00:43,882 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 26 transitions. [2022-12-12 15:00:43,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 73 flow [2022-12-12 15:00:43,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 15:00:43,885 INFO L231 Difference]: Finished difference. Result has 24 places, 13 transitions, 42 flow [2022-12-12 15:00:43,886 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=13} [2022-12-12 15:00:43,888 INFO L295 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2022-12-12 15:00:43,888 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 13 transitions, 42 flow [2022-12-12 15:00:43,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:00:43,889 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:00:43,889 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 15:00:43,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:00:43,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:00:43,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:00:43,890 INFO L85 PathProgramCache]: Analyzing trace with hash 216127854, now seen corresponding path program 1 times [2022-12-12 15:00:43,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:00:43,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167565773] [2022-12-12 15:00:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:00:43,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:00:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:00:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:00:44,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:00:44,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167565773] [2022-12-12 15:00:44,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167565773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:00:44,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:00:44,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 15:00:44,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579074168] [2022-12-12 15:00:44,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:00:44,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 15:00:44,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:00:44,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 15:00:44,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 15:00:44,147 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 18 [2022-12-12 15:00:44,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 13 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:00:44,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:00:44,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 18 [2022-12-12 15:00:44,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:00:44,175 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-12 15:00:44,175 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 15:00:44,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 21 events. 3/21 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 56 event pairs, 0 based on Foata normal form. 5/19 useless extension candidates. Maximal degree in co-relation 43. Up to 14 conditions per place. [2022-12-12 15:00:44,176 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 2 selfloop transitions, 4 changer transitions 10/16 dead transitions. [2022-12-12 15:00:44,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 80 flow [2022-12-12 15:00:44,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 15:00:44,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 15:00:44,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-12 15:00:44,178 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3055555555555556 [2022-12-12 15:00:44,178 INFO L175 Difference]: Start difference. First operand has 24 places, 13 transitions, 42 flow. Second operand 4 states and 22 transitions. [2022-12-12 15:00:44,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 16 transitions, 80 flow [2022-12-12 15:00:44,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 15:00:44,179 INFO L231 Difference]: Finished difference. Result has 20 places, 6 transitions, 26 flow [2022-12-12 15:00:44,179 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=26, PETRI_PLACES=20, PETRI_TRANSITIONS=6} [2022-12-12 15:00:44,180 INFO L295 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2022-12-12 15:00:44,180 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 6 transitions, 26 flow [2022-12-12 15:00:44,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:00:44,180 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:00:44,180 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 15:00:44,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 15:00:44,181 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:00:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:00:44,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1889916767, now seen corresponding path program 1 times [2022-12-12 15:00:44,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:00:44,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550333223] [2022-12-12 15:00:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:00:44,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:00:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:00:44,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 15:00:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:00:44,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 15:00:44,238 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 15:00:44,238 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 15:00:44,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 15:00:44,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 15:00:44,240 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-12 15:00:44,243 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:00:44,243 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:00:44,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:00:44 BasicIcfg [2022-12-12 15:00:44,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:00:44,259 INFO L158 Benchmark]: Toolchain (without parser) took 4219.78ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 154.0MB in the beginning and 142.0MB in the end (delta: 12.0MB). Peak memory consumption was 49.2MB. Max. memory is 8.0GB. [2022-12-12 15:00:44,260 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 105.3MB in the beginning and 105.2MB in the end (delta: 89.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:00:44,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.09ms. Allocated memory is still 177.2MB. Free memory was 154.0MB in the beginning and 134.7MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 15:00:44,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.29ms. Allocated memory is still 177.2MB. Free memory was 134.7MB in the beginning and 133.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 15:00:44,262 INFO L158 Benchmark]: Boogie Preprocessor took 31.23ms. Allocated memory is still 177.2MB. Free memory was 132.7MB in the beginning and 131.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 15:00:44,263 INFO L158 Benchmark]: RCFGBuilder took 478.83ms. Allocated memory is still 177.2MB. Free memory was 131.6MB in the beginning and 119.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 15:00:44,263 INFO L158 Benchmark]: TraceAbstraction took 3273.93ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 155.2MB in the beginning and 142.0MB in the end (delta: 13.2MB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. [2022-12-12 15:00:44,267 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 127.9MB. Free memory was 105.3MB in the beginning and 105.2MB in the end (delta: 89.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 360.09ms. Allocated memory is still 177.2MB. Free memory was 154.0MB in the beginning and 134.7MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.29ms. Allocated memory is still 177.2MB. Free memory was 134.7MB in the beginning and 133.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.23ms. Allocated memory is still 177.2MB. Free memory was 132.7MB in the beginning and 131.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 478.83ms. Allocated memory is still 177.2MB. Free memory was 131.6MB in the beginning and 119.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3273.93ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 155.2MB in the beginning and 142.0MB in the end (delta: 13.2MB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 56 PlacesBefore, 22 PlacesAfterwards, 52 TransitionsBefore, 18 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 242, independent unconditional: 0, dependent: 50, dependent conditional: 50, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 189, independent: 164, independent conditional: 0, independent unconditional: 164, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 189, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 292, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 189, unknown conditional: 0, unknown unconditional: 189] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 296, Positive conditional cache size: 0, Positive unconditional cache size: 296, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-12 15:00:44,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...