/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:45:35,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:45:35,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:45:35,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:45:35,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:45:35,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:45:35,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:45:35,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:45:35,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:45:35,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:45:35,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:45:35,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:45:35,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:45:35,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:45:35,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:45:35,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:45:35,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:45:35,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:45:35,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:45:35,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:45:35,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:45:35,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:45:35,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:45:35,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:45:35,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 20:45:35,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:45:35,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:45:35,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:45:35,406 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 [2022-12-05 20:45:35,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:45:35,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:45:35,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:45:35,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:45:35,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:45:35,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:45:35,437 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:45:35,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:45:35,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:45:35,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:45:35,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:45:35,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:45:35,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:45:35,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:45:35,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:45:35,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:45:35,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:45:35,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:45:35,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:45:35,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:45:35,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:45:35,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:45:35,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:45:35,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:45:35,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:45:35,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:45:35,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:45:35,756 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:45:35,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-05 20:45:36,699 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:45:36,930 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:45:36,931 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-05 20:45:36,938 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290f12dbd/2a24428b6a4741b3b68b738dae3d268a/FLAGb865179a1 [2022-12-05 20:45:36,947 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290f12dbd/2a24428b6a4741b3b68b738dae3d268a [2022-12-05 20:45:36,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:45:36,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:45:36,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:45:36,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:45:36,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:45:36,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:45:36" (1/1) ... [2022-12-05 20:45:36,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5122ea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:36, skipping insertion in model container [2022-12-05 20:45:36,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:45:36" (1/1) ... [2022-12-05 20:45:36,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:45:36,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:45:37,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-05 20:45:37,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:45:37,217 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:45:37,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-05 20:45:37,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:45:37,290 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:45:37,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37 WrapperNode [2022-12-05 20:45:37,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:45:37,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:45:37,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:45:37,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:45:37,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,337 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-05 20:45:37,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:45:37,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:45:37,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:45:37,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:45:37,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,366 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:45:37,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:45:37,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:45:37,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:45:37,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (1/1) ... [2022-12-05 20:45:37,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:45:37,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:45:37,395 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) [2022-12-05 20:45:37,401 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 [2022-12-05 20:45:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:45:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:45:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:45:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:45:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:45:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:45:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:45:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:45:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:45:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:45:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:45:37,425 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:45:37,567 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:45:37,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:45:37,688 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:45:37,693 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:45:37,693 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:45:37,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:45:37 BoogieIcfgContainer [2022-12-05 20:45:37,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:45:37,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:45:37,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:45:37,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:45:37,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:45:36" (1/3) ... [2022-12-05 20:45:37,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e2d324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:45:37, skipping insertion in model container [2022-12-05 20:45:37,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:37" (2/3) ... [2022-12-05 20:45:37,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e2d324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:45:37, skipping insertion in model container [2022-12-05 20:45:37,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:45:37" (3/3) ... [2022-12-05 20:45:37,701 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-12-05 20:45:37,717 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:45:37,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:45:37,718 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:45:37,777 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:45:37,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 20:45:37,860 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-05 20:45:37,861 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:45:37,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-05 20:45:37,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 20:45:37,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:37,868 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:45:37,880 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:37,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:37,904 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-05 20:45:37,904 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:45:37,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-05 20:45:37,907 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:37,908 INFO L188 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-05 20:45:39,716 INFO L203 LiptonReduction]: Total number of compositions: 39 [2022-12-05 20:45:39,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:45:39,731 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;@5988edbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:45:39,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 20:45:39,733 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-05 20:45:39,733 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:45:39,733 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:45:39,733 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 20:45:39,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-05 20:45:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:45:39,736 INFO L85 PathProgramCache]: Analyzing trace with hash 218122, now seen corresponding path program 1 times [2022-12-05 20:45:39,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:45:39,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562244599] [2022-12-05 20:45:39,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:45:39,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:45:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:45:39,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:45:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:45:39,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:45:39,854 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:45:39,855 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 20:45:39,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 20:45:39,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-05 20:45:39,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:45:39,857 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 20:45:39,865 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:45:39,865 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:45:39,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:45:39 BasicIcfg [2022-12-05 20:45:39,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:45:39,881 INFO L158 Benchmark]: Toolchain (without parser) took 2930.31ms. Allocated memory was 220.2MB in the beginning and 276.8MB in the end (delta: 56.6MB). Free memory was 194.7MB in the beginning and 139.3MB in the end (delta: 55.4MB). Peak memory consumption was 113.6MB. Max. memory is 8.0GB. [2022-12-05 20:45:39,882 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 220.2MB. Free memory was 198.3MB in the beginning and 198.3MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:45:39,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.01ms. Allocated memory is still 220.2MB. Free memory was 194.2MB in the beginning and 175.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-05 20:45:39,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.49ms. Allocated memory is still 220.2MB. Free memory was 175.9MB in the beginning and 173.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:45:39,883 INFO L158 Benchmark]: Boogie Preprocessor took 29.93ms. Allocated memory is still 220.2MB. Free memory was 173.8MB in the beginning and 172.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:45:39,883 INFO L158 Benchmark]: RCFGBuilder took 326.27ms. Allocated memory is still 220.2MB. Free memory was 172.2MB in the beginning and 160.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 20:45:39,883 INFO L158 Benchmark]: TraceAbstraction took 2183.07ms. Allocated memory was 220.2MB in the beginning and 276.8MB in the end (delta: 56.6MB). Free memory was 159.6MB in the beginning and 139.3MB in the end (delta: 20.3MB). Peak memory consumption was 77.9MB. Max. memory is 8.0GB. [2022-12-05 20:45:39,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 220.2MB. Free memory was 198.3MB in the beginning and 198.3MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 341.01ms. Allocated memory is still 220.2MB. Free memory was 194.2MB in the beginning and 175.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.49ms. Allocated memory is still 220.2MB. Free memory was 175.9MB in the beginning and 173.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.93ms. Allocated memory is still 220.2MB. Free memory was 173.8MB in the beginning and 172.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 326.27ms. Allocated memory is still 220.2MB. Free memory was 172.2MB in the beginning and 160.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2183.07ms. Allocated memory was 220.2MB in the beginning and 276.8MB in the end (delta: 56.6MB). Free memory was 159.6MB in the beginning and 139.3MB in the end (delta: 20.3MB). Peak memory consumption was 77.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 46 PlacesBefore, 9 PlacesAfterwards, 43 TransitionsBefore, 5 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 100, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 100, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 100, unknown conditional: 0, unknown unconditional: 100] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 79 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-05 20:45:39,903 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...