/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 --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:53:54,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:53:54,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:53:54,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:53:54,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:53:54,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:53:54,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:53:54,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:53:54,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:53:54,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:53:54,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:53:54,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:53:54,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:53:54,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:53:54,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:53:54,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:53:54,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:53:54,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:53:54,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:53:54,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:53:54,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:53:54,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:53:54,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:53:54,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:53:54,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-11 23:53:54,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:53:54,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:53:54,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:53:54,938 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 [2022-12-11 23:53:54,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:53:54,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:53:54,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:53:54,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:53:54,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:53:54,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:53:54,972 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:53:54,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:53:54,973 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:53:54,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:53:54,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:53:54,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:53:54,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:53:54,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:53:54,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:53:54,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:53:54,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:53:54,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:53:54,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:53:54,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:53:54,976 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:53:54,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:53:54,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:53:54,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:53:54,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:53:55,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:53:55,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:53:55,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:53:55,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:53:55,330 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:53:55,331 INFO L432 ainManager$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_neg.i [2022-12-11 23:53:56,338 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:53:56,646 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:53:56,646 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-12-11 23:53:56,661 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90afaf0d6/632b87cc3b0241ffaac515aa732843cc/FLAG30a8f3372 [2022-12-11 23:53:56,675 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90afaf0d6/632b87cc3b0241ffaac515aa732843cc [2022-12-11 23:53:56,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:53:56,679 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:53:56,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:53:56,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:53:56,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:53:56,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:53:56" (1/1) ... [2022-12-11 23:53:56,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553c2b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:56, skipping insertion in model container [2022-12-11 23:53:56,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:53:56" (1/1) ... [2022-12-11 23:53:56,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:53:56,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:53:56,891 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_neg.i[1097,1110] [2022-12-11 23:53:57,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:53:57,070 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:53:57,082 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_neg.i[1097,1110] [2022-12-11 23:53:57,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:53:57,153 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:53:57,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57 WrapperNode [2022-12-11 23:53:57,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:53:57,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:53:57,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:53:57,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:53:57,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,213 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-11 23:53:57,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:53:57,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:53:57,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:53:57,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:53:57,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:53:57,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:53:57,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:53:57,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:53:57,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (1/1) ... [2022-12-11 23:53:57,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:53:57,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:53:57,274 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) [2022-12-11 23:53:57,283 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 [2022-12-11 23:53:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 23:53:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:53:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 23:53:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:53:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:53:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-11 23:53:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-11 23:53:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:53:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:53:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:53:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:53:57,318 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:53:57,471 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:53:57,472 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:53:57,614 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:53:57,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:53:57,619 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:53:57,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:53:57 BoogieIcfgContainer [2022-12-11 23:53:57,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:53:57,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:53:57,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:53:57,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:53:57,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:53:56" (1/3) ... [2022-12-11 23:53:57,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524708bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:53:57, skipping insertion in model container [2022-12-11 23:53:57,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:53:57" (2/3) ... [2022-12-11 23:53:57,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524708bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:53:57, skipping insertion in model container [2022-12-11 23:53:57,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:53:57" (3/3) ... [2022-12-11 23:53:57,629 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-12-11 23:53:57,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:53:57,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:53:57,648 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:53:57,704 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-11 23:53:57,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-11 23:53:57,778 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-11 23:53:57,779 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 23:53:57,782 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. [2022-12-11 23:53:57,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-11 23:53:57,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-11 23:53:57,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:53:57,810 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;@369c64f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:53:57,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-11 23:53:57,829 INFO L130 PetriNetUnfolder]: 1/42 cut-off events. [2022-12-11 23:53:57,830 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:53:57,830 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:53:57,831 INFO L214 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] [2022-12-11 23:53:57,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-11 23:53:57,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:53:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1547985198, now seen corresponding path program 1 times [2022-12-11 23:53:57,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:53:57,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102376788] [2022-12-11 23:53:57,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:53:57,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:53:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:53:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:53:58,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:53:58,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102376788] [2022-12-11 23:53:58,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102376788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:53:58,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:53:58,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:53:58,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11888252] [2022-12-11 23:53:58,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:53:58,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:53:58,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:53:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:53:58,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:53:58,300 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 58 [2022-12-11 23:53:58,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 89 flow. Second operand has 6 states, 6 states have (on average 43.5) internal successors, (261), 6 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:53:58,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:53:58,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 58 [2022-12-11 23:53:58,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:53:58,368 INFO L130 PetriNetUnfolder]: 0/47 cut-off events. [2022-12-11 23:53:58,369 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 23:53:58,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 47 events. 0/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-12-11 23:53:58,370 INFO L137 encePairwiseOnDemand]: 52/58 looper letters, 8 selfloop transitions, 2 changer transitions 5/47 dead transitions. [2022-12-11 23:53:58,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 47 transitions, 127 flow [2022-12-11 23:53:58,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 23:53:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 23:53:58,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 268 transitions. [2022-12-11 23:53:58,382 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7701149425287356 [2022-12-11 23:53:58,385 INFO L295 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2022-12-11 23:53:58,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 47 transitions, 127 flow [2022-12-11 23:53:58,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 42 transitions, 107 flow [2022-12-11 23:53:58,387 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 107 flow [2022-12-11 23:53:58,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.5) internal successors, (261), 6 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:53:58,388 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:53:58,389 INFO L214 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, 1] [2022-12-11 23:53:58,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:53:58,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-11 23:53:58,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:53:58,390 INFO L85 PathProgramCache]: Analyzing trace with hash 892169052, now seen corresponding path program 1 times [2022-12-11 23:53:58,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:53:58,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886713604] [2022-12-11 23:53:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:53:58,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:53:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 23:53:58,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-11 23:53:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 23:53:58,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-11 23:53:58,477 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-11 23:53:58,479 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-11 23:53:58,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-11 23:53:58,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-11 23:53:58,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:53:58,482 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-11 23:53:58,488 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:53:58,488 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:53:58,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:53:58 BasicIcfg [2022-12-11 23:53:58,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:53:58,517 INFO L158 Benchmark]: Toolchain (without parser) took 1837.58ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 179.6MB in the beginning and 215.6MB in the end (delta: -36.0MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. [2022-12-11 23:53:58,517 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 204.5MB. Free memory is still 181.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:53:58,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.85ms. Allocated memory is still 204.5MB. Free memory was 179.6MB in the beginning and 160.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-11 23:53:58,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.00ms. Allocated memory is still 204.5MB. Free memory was 160.8MB in the beginning and 158.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:53:58,518 INFO L158 Benchmark]: Boogie Preprocessor took 30.55ms. Allocated memory is still 204.5MB. Free memory was 158.7MB in the beginning and 157.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 23:53:58,519 INFO L158 Benchmark]: RCFGBuilder took 376.79ms. Allocated memory is still 204.5MB. Free memory was 157.1MB in the beginning and 145.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-11 23:53:58,519 INFO L158 Benchmark]: TraceAbstraction took 891.56ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 144.0MB in the beginning and 215.6MB in the end (delta: -71.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:53:58,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 204.5MB. Free memory is still 181.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 473.85ms. Allocated memory is still 204.5MB. Free memory was 179.6MB in the beginning and 160.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.00ms. Allocated memory is still 204.5MB. Free memory was 160.8MB in the beginning and 158.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.55ms. Allocated memory is still 204.5MB. Free memory was 158.7MB in the beginning and 157.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 376.79ms. Allocated memory is still 204.5MB. Free memory was 157.1MB in the beginning and 145.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 891.56ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 144.0MB in the beginning and 215.6MB in the end (delta: -71.6MB). There was no memory consumed. 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()=42, arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] COND TRUE 1 t == 42 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 glob1 = 1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-12-11 23:53:58,546 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...