/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:28:19,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:28:19,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:28:19,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 01:28:19,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:28:19,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:28:19,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:28:19,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:28:19,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:28:20,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:28:20,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:28:20,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:28:20,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:28:20,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:28:20,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:28:20,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:28:20,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 01:28:20,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 01:28:20,039 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:28:20,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:28:20,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:28:20,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:28:20,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:28:20,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:28:20,041 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:28:20,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:28:20,041 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:28:20,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:28:20,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:28:20,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:28:20,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:28:20,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:28:20,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:28:20,042 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:28:20,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:28:20,042 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:28:20,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:28:20,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:28:20,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:28:20,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:28:20,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:28:20,044 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:28:20,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:28:20,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:28:20,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:28:20,265 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:28:20,265 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:28:20,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-01-28 01:28:21,255 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:28:21,504 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:28:21,504 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-01-28 01:28:21,512 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3c54243/d8429945ba584124b213f542c4c79035/FLAGe03247eb5 [2023-01-28 01:28:21,848 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3c54243/d8429945ba584124b213f542c4c79035 [2023-01-28 01:28:21,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:28:21,851 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:28:21,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:28:21,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:28:21,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:28:21,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:28:21" (1/1) ... [2023-01-28 01:28:21,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544b55db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:21, skipping insertion in model container [2023-01-28 01:28:21,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:28:21" (1/1) ... [2023-01-28 01:28:21,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:28:21,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:28:22,024 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2023-01-28 01:28:22,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:28:22,103 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:28:22,110 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2023-01-28 01:28:22,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:28:22,180 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:28:22,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22 WrapperNode [2023-01-28 01:28:22,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:28:22,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:28:22,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:28:22,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:28:22,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,225 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-01-28 01:28:22,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:28:22,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:28:22,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:28:22,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:28:22,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:28:22,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:28:22,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:28:22,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:28:22,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (1/1) ... [2023-01-28 01:28:22,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:28:22,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:28:22,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 01:28:22,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 01:28:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:28:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:28:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:28:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:28:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 01:28:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 01:28:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:28:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:28:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:28:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:28:22,315 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:28:22,453 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:28:22,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:28:22,542 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:28:22,546 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:28:22,546 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 01:28:22,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:28:22 BoogieIcfgContainer [2023-01-28 01:28:22,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:28:22,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:28:22,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:28:22,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:28:22,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:28:21" (1/3) ... [2023-01-28 01:28:22,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cc3b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:28:22, skipping insertion in model container [2023-01-28 01:28:22,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:22" (2/3) ... [2023-01-28 01:28:22,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cc3b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:28:22, skipping insertion in model container [2023-01-28 01:28:22,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:28:22" (3/3) ... [2023-01-28 01:28:22,553 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-01-28 01:28:22,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:28:22,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 01:28:22,565 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:28:22,591 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 01:28:22,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2023-01-28 01:28:22,669 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2023-01-28 01:28:22,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:28:22,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-01-28 01:28:22,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2023-01-28 01:28:22,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-01-28 01:28:22,686 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:28:22,704 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-01-28 01:28:22,707 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-01-28 01:28:22,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-01-28 01:28:22,718 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-01-28 01:28:22,719 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:28:22,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-28 01:28:22,719 INFO L119 LiptonReduction]: Number of co-enabled transitions 240 [2023-01-28 01:28:24,379 INFO L134 LiptonReduction]: Checked pairs total: 592 [2023-01-28 01:28:24,379 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-01-28 01:28:24,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 01:28:24,392 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;@c62de1e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:28:24,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:28:24,394 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-01-28 01:28:24,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:28:24,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:28:24,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 01:28:24,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:28:24,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:28:24,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1761964991, now seen corresponding path program 1 times [2023-01-28 01:28:24,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:28:24,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431035123] [2023-01-28 01:28:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:28:24,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:28:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:28:24,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:28:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:28:24,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:28:24,559 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:28:24,559 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-28 01:28:24,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:28:24,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:28:24,561 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:28:24,568 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 01:28:24,568 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 01:28:24,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:28:24 BasicIcfg [2023-01-28 01:28:24,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 01:28:24,583 INFO L158 Benchmark]: Toolchain (without parser) took 2732.08ms. Allocated memory is still 597.7MB. Free memory was 554.1MB in the beginning and 532.9MB in the end (delta: 21.3MB). Peak memory consumption was 22.9MB. Max. memory is 16.0GB. [2023-01-28 01:28:24,584 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory is still 309.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:28:24,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.25ms. Allocated memory is still 597.7MB. Free memory was 554.1MB in the beginning and 535.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 01:28:24,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.41ms. Allocated memory is still 597.7MB. Free memory was 535.2MB in the beginning and 533.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:28:24,588 INFO L158 Benchmark]: Boogie Preprocessor took 26.45ms. Allocated memory is still 597.7MB. Free memory was 533.2MB in the beginning and 531.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:28:24,588 INFO L158 Benchmark]: RCFGBuilder took 294.69ms. Allocated memory is still 597.7MB. Free memory was 531.9MB in the beginning and 519.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 01:28:24,589 INFO L158 Benchmark]: TraceAbstraction took 2033.25ms. Allocated memory is still 597.7MB. Free memory was 519.0MB in the beginning and 532.9MB in the end (delta: -13.9MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:28:24,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory is still 309.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 329.25ms. Allocated memory is still 597.7MB. Free memory was 554.1MB in the beginning and 535.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.41ms. Allocated memory is still 597.7MB. Free memory was 535.2MB in the beginning and 533.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.45ms. Allocated memory is still 597.7MB. Free memory was 533.2MB in the beginning and 531.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 294.69ms. Allocated memory is still 597.7MB. Free memory was 531.9MB in the beginning and 519.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2033.25ms. Allocated memory is still 597.7MB. Free memory was 519.0MB in the beginning and 532.9MB in the end (delta: -13.9MB). 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: 1.7s, 55 PlacesBefore, 15 PlacesAfterwards, 51 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 126, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 269, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 126, unknown conditional: 0, unknown unconditional: 126] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=0] - UnprovableResult [Line: 694]: 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, 72 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: 1.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 6 NumberOfCodeBlocks, 6 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! [2023-01-28 01:28:24,609 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...