/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:01:31,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:01:31,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:01:31,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:01:31,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:01:31,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:01:31,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:01:31,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:01:31,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:01:31,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:01:31,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:01:31,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:01:31,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:01:31,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:01:31,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:01:31,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:01:31,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:01:31,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:01:31,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:01:31,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:01:31,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:01:31,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:01:31,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:01:31,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:01:31,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:01:31,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:01:31,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:01:31,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:01:31,745 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 [2023-01-27 19:01:31,764 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:01:31,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:01:31,765 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:01:31,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:01:31,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:01:31,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:01:31,766 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:01:31,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:01:31,766 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:01:31,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:01:31,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:01:31,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:01:31,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:01:31,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:01:31,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:01:31,767 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:01:31,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:01:31,768 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:01:31,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:01:31,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:01:31,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:01:31,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:01:31,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:01:31,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:31,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:01:31,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:01:31,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:01:31,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:01:31,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:01:31,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:01:31,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:01:31,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:01:31,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:01:31,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:01:31,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:01:31,971 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:01:31,972 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:01:31,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-01-27 19:01:33,141 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:01:33,342 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:01:33,342 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-01-27 19:01:33,352 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cf4a698b/312bc68379574712be8b33a02d0ea620/FLAG27d8fe32e [2023-01-27 19:01:33,362 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cf4a698b/312bc68379574712be8b33a02d0ea620 [2023-01-27 19:01:33,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:01:33,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:01:33,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:33,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:01:33,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:01:33,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da079a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33, skipping insertion in model container [2023-01-27 19:01:33,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:01:33,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:01:33,546 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/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2023-01-27 19:01:33,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:33,652 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:01:33,664 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/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2023-01-27 19:01:33,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:33,748 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:01:33,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33 WrapperNode [2023-01-27 19:01:33,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:33,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:33,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:01:33,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:01:33,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,808 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-27 19:01:33,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:33,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:01:33,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:01:33,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:01:33,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,840 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:01:33,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:01:33,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:01:33,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:01:33,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (1/1) ... [2023-01-27 19:01:33,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:33,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:01:33,873 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) [2023-01-27 19:01:33,888 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 [2023-01-27 19:01:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:01:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:01:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:01:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:01:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:01:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:01:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:01:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:01:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:01:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:01:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:01:33,912 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:01:34,015 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:01:34,017 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:01:34,141 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:01:34,146 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:01:34,146 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:01:34,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:34 BoogieIcfgContainer [2023-01-27 19:01:34,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:01:34,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:01:34,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:01:34,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:01:34,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:01:33" (1/3) ... [2023-01-27 19:01:34,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c871f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:34, skipping insertion in model container [2023-01-27 19:01:34,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:33" (2/3) ... [2023-01-27 19:01:34,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c871f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:34, skipping insertion in model container [2023-01-27 19:01:34,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:34" (3/3) ... [2023-01-27 19:01:34,155 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-01-27 19:01:34,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:01:34,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:01:34,171 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:01:34,237 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-27 19:01:34,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-27 19:01:34,310 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-27 19:01:34,310 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:01:34,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-01-27 19:01:34,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-27 19:01:34,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:34,337 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:01:34,353 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:34,361 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:34,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:34,386 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-27 19:01:34,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:01:34,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-27 19:01:34,387 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-27 19:01:36,232 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-27 19:01:36,232 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-27 19:01:36,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:01:36,258 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;@42cea522, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:01:36,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-27 19:01:36,260 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-27 19:01:36,260 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:01:36,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:01:36,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 19:01:36,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-27 19:01:36,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:01:36,264 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-27 19:01:36,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:01:36,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146469927] [2023-01-27 19:01:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:01:36,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:01:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:01:36,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:01:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:01:36,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:01:36,452 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:01:36,453 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-27 19:01:36,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-27 19:01:36,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-27 19:01:36,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:01:36,455 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:01:36,461 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:01:36,461 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:01:36,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:01:36 BasicIcfg [2023-01-27 19:01:36,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:01:36,481 INFO L158 Benchmark]: Toolchain (without parser) took 3115.50ms. Allocated memory was 358.6MB in the beginning and 557.8MB in the end (delta: 199.2MB). Free memory was 316.2MB in the beginning and 492.4MB in the end (delta: -176.2MB). Peak memory consumption was 25.7MB. Max. memory is 16.0GB. [2023-01-27 19:01:36,482 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 358.6MB. Free memory is still 306.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:01:36,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.63ms. Allocated memory is still 358.6MB. Free memory was 316.2MB in the beginning and 297.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:01:36,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.30ms. Allocated memory is still 358.6MB. Free memory was 297.3MB in the beginning and 295.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:01:36,487 INFO L158 Benchmark]: Boogie Preprocessor took 34.31ms. Allocated memory is still 358.6MB. Free memory was 295.3MB in the beginning and 294.3MB in the end (delta: 949.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:01:36,487 INFO L158 Benchmark]: RCFGBuilder took 304.61ms. Allocated memory is still 358.6MB. Free memory was 293.9MB in the beginning and 281.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:01:36,488 INFO L158 Benchmark]: TraceAbstraction took 2330.08ms. Allocated memory was 358.6MB in the beginning and 557.8MB in the end (delta: 199.2MB). Free memory was 281.3MB in the beginning and 492.4MB in the end (delta: -211.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:01:36,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 358.6MB. Free memory is still 306.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 383.63ms. Allocated memory is still 358.6MB. Free memory was 316.2MB in the beginning and 297.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.30ms. Allocated memory is still 358.6MB. Free memory was 297.3MB in the beginning and 295.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.31ms. Allocated memory is still 358.6MB. Free memory was 295.3MB in the beginning and 294.3MB in the end (delta: 949.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 304.61ms. Allocated memory is still 358.6MB. Free memory was 293.9MB in the beginning and 281.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2330.08ms. Allocated memory was 358.6MB in the beginning and 557.8MB in the end (delta: 199.2MB). Free memory was 281.3MB in the beginning and 492.4MB in the end (delta: -211.0MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-01-27 19:01:36,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...