/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_19-publish-precision_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:02:12,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:02:12,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:02:12,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:02:12,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:02:12,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:02:12,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:02:12,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:02:12,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:02:12,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:02:12,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:02:12,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:02:12,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:02:12,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:02:12,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:02:12,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:02:12,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:02:12,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:02:12,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:02:12,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:02:12,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:02:12,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:02:12,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:02:12,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:02:12,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:02:12,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:02:12,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:02:12,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:02:12,339 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 19:02:12,374 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:02:12,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:02:12,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:02:12,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:02:12,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:02:12,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:02:12,376 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:02:12,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:02:12,377 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:02:12,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:02:12,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:02:12,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:02:12,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:02:12,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:02:12,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:02:12,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:02:12,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:02:12,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:02:12,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:02:12,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:02:12,379 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:02:12,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:02:12,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:02:12,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:02:12,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:02:12,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:02:12,722 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:02:12,722 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:02:12,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-01-27 19:02:14,431 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:02:14,818 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:02:14,818 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-01-27 19:02:14,830 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8092870/dcac9e02ea684c9e8f8f49c6c65f5cf6/FLAG2eace111c [2023-01-27 19:02:14,856 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8092870/dcac9e02ea684c9e8f8f49c6c65f5cf6 [2023-01-27 19:02:14,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:02:14,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:02:14,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:02:14,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:02:14,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:02:14,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:02:14" (1/1) ... [2023-01-27 19:02:14,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7f5727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:14, skipping insertion in model container [2023-01-27 19:02:14,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:02:14" (1/1) ... [2023-01-27 19:02:14,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:02:14,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:02:15,156 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_19-publish-precision_unknown_2_pos.i[1103,1116] [2023-01-27 19:02:15,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:02:15,375 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:02:15,404 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_19-publish-precision_unknown_2_pos.i[1103,1116] [2023-01-27 19:02:15,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:02:15,502 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:02:15,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15 WrapperNode [2023-01-27 19:02:15,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:02:15,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:02:15,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:02:15,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:02:15,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,581 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-01-27 19:02:15,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:02:15,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:02:15,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:02:15,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:02:15,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:02:15,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:02:15,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:02:15,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:02:15,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (1/1) ... [2023-01-27 19:02:15,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:02:15,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:02:15,710 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 19:02:15,780 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 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:02:15,807 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:02:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:02:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:02:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:02:15,810 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 19:02:16,025 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:02:16,026 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:02:16,282 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:02:16,321 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:02:16,321 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:02:16,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:02:16 BoogieIcfgContainer [2023-01-27 19:02:16,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:02:16,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:02:16,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:02:16,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:02:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:02:14" (1/3) ... [2023-01-27 19:02:16,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24952d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:02:16, skipping insertion in model container [2023-01-27 19:02:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:15" (2/3) ... [2023-01-27 19:02:16,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24952d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:02:16, skipping insertion in model container [2023-01-27 19:02:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:02:16" (3/3) ... [2023-01-27 19:02:16,328 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2023-01-27 19:02:16,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:02:16,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:02:16,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:02:16,410 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-27 19:02:16,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2023-01-27 19:02:16,492 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2023-01-27 19:02:16,492 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:02:16,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-01-27 19:02:16,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2023-01-27 19:02:16,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2023-01-27 19:02:16,515 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:02:16,525 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-27 19:02:16,533 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-27 19:02:16,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2023-01-27 19:02:16,566 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2023-01-27 19:02:16,567 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:02:16,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-27 19:02:16,567 INFO L119 LiptonReduction]: Number of co-enabled transitions 252 [2023-01-27 19:02:18,928 INFO L134 LiptonReduction]: Checked pairs total: 530 [2023-01-27 19:02:18,928 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-01-27 19:02:18,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:02:18,946 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;@239645e7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:02:18,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-27 19:02:18,949 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-01-27 19:02:18,949 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:02:18,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:02:18,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-27 19:02:18,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:02:18,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:02:18,961 INFO L85 PathProgramCache]: Analyzing trace with hash 6763455, now seen corresponding path program 1 times [2023-01-27 19:02:18,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:02:18,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165146113] [2023-01-27 19:02:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:02:18,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:02:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:02:19,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:02:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:02:19,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:02:19,218 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:02:19,219 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-27 19:02:19,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-27 19:02:19,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:02:19,220 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:02:19,226 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:02:19,226 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:02:19,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:02:19 BasicIcfg [2023-01-27 19:02:19,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:02:19,241 INFO L158 Benchmark]: Toolchain (without parser) took 4380.25ms. Allocated memory is still 440.4MB. Free memory was 387.2MB in the beginning and 359.8MB in the end (delta: 27.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-01-27 19:02:19,257 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 310.4MB. Free memory was 257.5MB in the beginning and 257.4MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:02:19,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.95ms. Allocated memory is still 440.4MB. Free memory was 387.2MB in the beginning and 368.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:02:19,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.83ms. Allocated memory is still 440.4MB. Free memory was 368.3MB in the beginning and 366.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:02:19,261 INFO L158 Benchmark]: Boogie Preprocessor took 46.85ms. Allocated memory is still 440.4MB. Free memory was 366.2MB in the beginning and 365.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:02:19,262 INFO L158 Benchmark]: RCFGBuilder took 693.46ms. Allocated memory is still 440.4MB. Free memory was 364.8MB in the beginning and 351.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:02:19,263 INFO L158 Benchmark]: TraceAbstraction took 2915.49ms. Allocated memory is still 440.4MB. Free memory was 351.1MB in the beginning and 359.8MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:02:19,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 310.4MB. Free memory was 257.5MB in the beginning and 257.4MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 640.95ms. Allocated memory is still 440.4MB. Free memory was 387.2MB in the beginning and 368.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 77.83ms. Allocated memory is still 440.4MB. Free memory was 368.3MB in the beginning and 366.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.85ms. Allocated memory is still 440.4MB. Free memory was 366.2MB in the beginning and 365.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 693.46ms. Allocated memory is still 440.4MB. Free memory was 364.8MB in the beginning and 351.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2915.49ms. Allocated memory is still 440.4MB. Free memory was 351.1MB in the beginning and 359.8MB in the end (delta: -8.6MB). 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: 2.4s, 56 PlacesBefore, 16 PlacesAfterwards, 52 TransitionsBefore, 12 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 530 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 303, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 143, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 303, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 143, unknown conditional: 0, unknown unconditional: 143] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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 glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 19:02:19,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...