/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/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:02:22,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:02:22,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:02:22,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:02:22,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:02:22,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:02:22,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:02:22,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:02:22,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:02:22,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:02:22,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:02:22,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:02:22,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:02:22,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:02:22,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:02:22,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:02:22,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:02:22,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:02:22,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:02:22,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:02:22,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:02:22,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:02:22,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:02:22,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:02:22,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-12 15:02:22,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:02:22,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:02:22,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:02:22,945 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 15:02:22,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:02:22,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:02:22,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:02:22,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:02:22,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:02:22,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:02:22,973 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:02:22,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:02:22,973 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:02:22,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:02:22,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:02:22,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:02:22,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:02:22,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:02:22,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:02:22,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:02:22,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:02:22,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:02:22,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:02:22,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:02:22,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:02:22,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:02:22,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:02:22,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:02:22,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:02:22,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:02:22,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:02:22,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:02:22,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:02:22,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:02:22,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:02:23,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:02:23,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:02:23,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:02:23,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:02:23,257 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:02:23,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-12 15:02:24,291 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:02:24,590 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:02:24,590 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-12 15:02:24,609 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0fcfef4/dcbc6664a2cf454986abfc5342bbc1c9/FLAG9f69d3af4 [2022-12-12 15:02:24,618 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0fcfef4/dcbc6664a2cf454986abfc5342bbc1c9 [2022-12-12 15:02:24,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:02:24,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:02:24,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:02:24,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:02:24,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:02:24,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:24,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc3f18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24, skipping insertion in model container [2022-12-12 15:02:24,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:24,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:02:24,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:02:24,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-12-12 15:02:24,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:02:24,909 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:02:24,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-12-12 15:02:24,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:02:24,965 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:02:24,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24 WrapperNode [2022-12-12 15:02:24,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:02:24,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:02:24,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:02:24,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:02:24,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:24,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,006 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-12 15:02:25,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:02:25,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:02:25,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:02:25,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:02:25,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,025 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:02:25,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:02:25,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:02:25,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:02:25,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (1/1) ... [2022-12-12 15:02:25,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:02:25,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:02:25,068 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 15:02:25,073 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 15:02:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:02:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:02:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:02:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 15:02:25,091 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 15:02:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:02:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:02:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:02:25,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:02:25,092 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 15:02:25,165 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:02:25,166 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:02:25,264 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:02:25,267 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:02:25,268 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 15:02:25,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:02:25 BoogieIcfgContainer [2022-12-12 15:02:25,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:02:25,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:02:25,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:02:25,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:02:25,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:02:24" (1/3) ... [2022-12-12 15:02:25,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dde729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:02:25, skipping insertion in model container [2022-12-12 15:02:25,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:02:24" (2/3) ... [2022-12-12 15:02:25,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dde729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:02:25, skipping insertion in model container [2022-12-12 15:02:25,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:02:25" (3/3) ... [2022-12-12 15:02:25,288 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-12 15:02:25,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:02:25,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:02:25,301 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:02:25,328 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 15:02:25,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-12 15:02:25,373 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-12 15:02:25,373 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:02:25,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-12 15:02:25,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-12 15:02:25,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-12 15:02:25,384 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:02:25,398 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-12 15:02:25,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 65 flow [2022-12-12 15:02:25,424 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-12-12 15:02:25,424 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:02:25,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 15:02:25,425 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-12 15:02:25,426 INFO L226 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-12 15:02:26,571 INFO L241 LiptonReduction]: Total number of compositions: 27 [2022-12-12 15:02:26,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:02:26,584 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;@2b4dfa91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:02:26,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 15:02:26,586 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-12 15:02:26,586 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:02:26,586 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:02:26,587 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 15:02:26,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-12 15:02:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:02:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash 161610, now seen corresponding path program 1 times [2022-12-12 15:02:26,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:02:26,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548809431] [2022-12-12 15:02:26,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:02:26,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:02:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:02:26,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 15:02:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:02:26,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 15:02:26,707 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 15:02:26,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 15:02:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 15:02:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-12 15:02:26,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:02:26,710 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 15:02:26,717 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:02:26,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:02:26,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:02:26 BasicIcfg [2022-12-12 15:02:26,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:02:26,731 INFO L158 Benchmark]: Toolchain (without parser) took 2110.24ms. Allocated memory is still 184.5MB. Free memory was 160.7MB in the beginning and 110.9MB in the end (delta: 49.8MB). Peak memory consumption was 51.1MB. Max. memory is 8.0GB. [2022-12-12 15:02:26,731 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:02:26,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.48ms. Allocated memory is still 184.5MB. Free memory was 160.4MB in the beginning and 142.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 15:02:26,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.79ms. Allocated memory is still 184.5MB. Free memory was 142.1MB in the beginning and 140.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 15:02:26,732 INFO L158 Benchmark]: Boogie Preprocessor took 19.69ms. Allocated memory is still 184.5MB. Free memory was 140.0MB in the beginning and 138.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 15:02:26,732 INFO L158 Benchmark]: RCFGBuilder took 247.83ms. Allocated memory is still 184.5MB. Free memory was 138.9MB in the beginning and 127.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-12 15:02:26,733 INFO L158 Benchmark]: TraceAbstraction took 1447.68ms. Allocated memory is still 184.5MB. Free memory was 126.3MB in the beginning and 110.9MB in the end (delta: 15.5MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2022-12-12 15:02:26,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 345.48ms. Allocated memory is still 184.5MB. Free memory was 160.4MB in the beginning and 142.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.79ms. Allocated memory is still 184.5MB. Free memory was 142.1MB in the beginning and 140.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.69ms. Allocated memory is still 184.5MB. Free memory was 140.0MB in the beginning and 138.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 247.83ms. Allocated memory is still 184.5MB. Free memory was 138.9MB in the beginning and 127.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1447.68ms. Allocated memory is still 184.5MB. Free memory was 126.3MB in the beginning and 110.9MB in the end (delta: 15.5MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 35 PlacesBefore, 14 PlacesAfterwards, 31 TransitionsBefore, 10 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 152, independent: 152, independent conditional: 152, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 152, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 152, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 152, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 152, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , Statistics on independence cache: Total cache size (in pairs): 304, Positive cache size: 304, Positive conditional cache size: 0, Positive unconditional cache size: 304, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 52 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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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! [2022-12-12 15:02:26,747 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...