/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:56:25,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:56:25,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:56:25,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:56:25,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:56:25,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:56:25,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:56:25,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:56:25,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:56:25,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:56:25,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:56:25,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:56:25,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:56:25,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:56:25,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:56:25,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:56:25,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:56:25,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:56:25,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:56:25,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:56:25,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:56:25,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:56:25,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:56:25,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:56:25,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:56:25,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:56:25,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:56:25,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:56:25,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:56:25,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 16:56:25,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:56:25,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:56:25,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:56:25,408 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-NoLbe.epf [2022-12-06 16:56:25,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:56:25,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:56:25,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:56:25,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:56:25,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:56:25,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:56:25,436 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:56:25,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:56:25,436 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:56:25,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:56:25,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:56:25,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:56:25,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:56:25,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:56:25,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:56:25,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:56:25,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:56:25,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:56:25,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:56:25,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:56:25,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:56:25,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:56:25,439 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:56:25,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:56:25,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:56:25,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:56:25,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:56:25,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:56:25,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:56:25,708 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:56:25,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-06 16:56:26,625 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:56:26,838 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:56:26,838 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-06 16:56:26,855 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de81a0a88/15d445f108c94b169e0ec899e9b51dbf/FLAG39a71bd4c [2022-12-06 16:56:26,865 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de81a0a88/15d445f108c94b169e0ec899e9b51dbf [2022-12-06 16:56:26,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:56:26,867 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:56:26,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:56:26,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:56:26,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:56:26,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:26" (1/1) ... [2022-12-06 16:56:26,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bd46c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:26, skipping insertion in model container [2022-12-06 16:56:26,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:26" (1/1) ... [2022-12-06 16:56:26,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:56:26,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:56:27,031 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_1_neg.i[1097,1110] [2022-12-06 16:56:27,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:56:27,157 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:56:27,169 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_1_neg.i[1097,1110] [2022-12-06 16:56:27,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:56:27,227 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:56:27,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27 WrapperNode [2022-12-06 16:56:27,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:56:27,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:56:27,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:56:27,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:56:27,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,274 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-06 16:56:27,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:56:27,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:56:27,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:56:27,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:56:27,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,302 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:56:27,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:56:27,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:56:27,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:56:27,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (1/1) ... [2022-12-06 16:56:27,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:56:27,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:56:27,352 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) [2022-12-06 16:56:27,375 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 [2022-12-06 16:56:27,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:56:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:56:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:56:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:56:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:56:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:56:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:56:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:56:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:56:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:56:27,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:56:27,391 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:56:27,511 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:56:27,512 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:56:27,666 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:56:27,670 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:56:27,670 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:56:27,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:27 BoogieIcfgContainer [2022-12-06 16:56:27,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:56:27,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:56:27,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:56:27,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:56:27,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:56:26" (1/3) ... [2022-12-06 16:56:27,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409b88d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:27, skipping insertion in model container [2022-12-06 16:56:27,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:27" (2/3) ... [2022-12-06 16:56:27,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409b88d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:27, skipping insertion in model container [2022-12-06 16:56:27,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:27" (3/3) ... [2022-12-06 16:56:27,677 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2022-12-06 16:56:27,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:56:27,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:56:27,691 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:56:27,731 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 16:56:27,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-06 16:56:27,799 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-06 16:56:27,799 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:56:27,801 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. [2022-12-06 16:56:27,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-06 16:56:27,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-06 16:56:27,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:56:27,819 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;@3bd0c650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:56:27,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 16:56:27,835 INFO L130 PetriNetUnfolder]: 1/42 cut-off events. [2022-12-06 16:56:27,835 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:56:27,835 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:27,836 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:27,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-06 16:56:27,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1547985198, now seen corresponding path program 1 times [2022-12-06 16:56:27,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:27,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680545634] [2022-12-06 16:56:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:27,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:56:27,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:56:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:56:28,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:56:28,074 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:56:28,075 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 16:56:28,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 16:56:28,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-06 16:56:28,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:56:28,088 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 16:56:28,094 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:56:28,094 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:56:28,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:56:28 BasicIcfg [2022-12-06 16:56:28,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:56:28,135 INFO L158 Benchmark]: Toolchain (without parser) took 1266.92ms. Allocated memory was 160.4MB in the beginning and 192.9MB in the end (delta: 32.5MB). Free memory was 136.7MB in the beginning and 164.9MB in the end (delta: -28.2MB). Peak memory consumption was 60.9MB. Max. memory is 8.0GB. [2022-12-06 16:56:28,136 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 160.4MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:56:28,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.86ms. Allocated memory is still 160.4MB. Free memory was 136.2MB in the beginning and 117.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:56:28,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.94ms. Allocated memory is still 160.4MB. Free memory was 117.3MB in the beginning and 115.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:56:28,140 INFO L158 Benchmark]: Boogie Preprocessor took 29.37ms. Allocated memory is still 160.4MB. Free memory was 115.7MB in the beginning and 114.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:56:28,141 INFO L158 Benchmark]: RCFGBuilder took 366.98ms. Allocated memory is still 160.4MB. Free memory was 114.2MB in the beginning and 101.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 16:56:28,142 INFO L158 Benchmark]: TraceAbstraction took 460.61ms. Allocated memory was 160.4MB in the beginning and 192.9MB in the end (delta: 32.5MB). Free memory was 101.1MB in the beginning and 164.9MB in the end (delta: -63.8MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. [2022-12-06 16:56:28,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 160.4MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.86ms. Allocated memory is still 160.4MB. Free memory was 136.2MB in the beginning and 117.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.94ms. Allocated memory is still 160.4MB. Free memory was 117.3MB in the beginning and 115.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.37ms. Allocated memory is still 160.4MB. Free memory was 115.7MB in the beginning and 114.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 366.98ms. Allocated memory is still 160.4MB. Free memory was 114.2MB in the beginning and 101.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 460.61ms. Allocated memory was 160.4MB in the beginning and 192.9MB in the end (delta: 32.5MB). Free memory was 101.1MB in the beginning and 164.9MB in the end (delta: -63.8MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; VAL [glob1=0] [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [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(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] COND FALSE 1 !(t == 42) VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] [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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred 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, 35 NumberOfCodeBlocks, 35 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! [2022-12-06 16:56:28,178 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...