/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_19-publish-precision_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:00:30,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:00:30,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:00:30,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:00:30,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:00:30,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:00:30,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:00:30,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:00:30,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:00:30,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:00:30,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:00:30,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:00:30,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:00:30,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:00:30,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:00:30,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:00:30,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:00:30,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:00:30,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:00:30,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:00:30,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:00:30,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:00:30,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:00:30,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:00:30,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-12 15:00:30,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:00:30,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:00:30,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:00:30,673 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 [2022-12-12 15:00:30,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:00:30,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:00:30,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:00:30,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:00:30,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:00:30,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:00:30,713 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:00:30,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:00:30,714 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:00:30,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:00:30,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:00:30,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:00:30,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:00:30,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:00:30,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:00:30,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:00:30,717 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:00:30,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:00:30,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:00:30,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:00:30,998 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:00:30,999 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:00:31,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-12 15:00:32,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:00:32,317 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:00:32,318 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-12 15:00:32,362 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70d62c28d/684a8101dc514aba91ab67da2d063b14/FLAG44b9bbbf0 [2022-12-12 15:00:32,384 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70d62c28d/684a8101dc514aba91ab67da2d063b14 [2022-12-12 15:00:32,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:00:32,388 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:00:32,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:00:32,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:00:32,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:00:32,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf82661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32, skipping insertion in model container [2022-12-12 15:00:32,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:00:32,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:00:32,602 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_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-12 15:00:32,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:00:32,683 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:00:32,691 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_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-12 15:00:32,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:00:32,742 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:00:32,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32 WrapperNode [2022-12-12 15:00:32,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:00:32,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:00:32,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:00:32,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:00:32,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,791 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-12 15:00:32,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:00:32,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:00:32,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:00:32,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:00:32,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,804 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:00:32,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:00:32,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:00:32,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:00:32,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (1/1) ... [2022-12-12 15:00:32,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:00:32,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:00:32,840 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) [2022-12-12 15:00:32,843 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 [2022-12-12 15:00:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 15:00:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:00:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 15:00:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:00:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:00:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 15:00:32,874 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 15:00:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:00:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:00:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:00:32,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:00:32,878 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 15:00:32,994 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:00:32,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:00:33,142 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:00:33,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:00:33,147 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 15:00:33,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:00:33 BoogieIcfgContainer [2022-12-12 15:00:33,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:00:33,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:00:33,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:00:33,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:00:33,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:00:32" (1/3) ... [2022-12-12 15:00:33,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f34082f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:00:33, skipping insertion in model container [2022-12-12 15:00:33,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:00:32" (2/3) ... [2022-12-12 15:00:33,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f34082f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:00:33, skipping insertion in model container [2022-12-12 15:00:33,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:00:33" (3/3) ... [2022-12-12 15:00:33,155 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-12 15:00:33,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:00:33,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:00:33,169 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:00:33,229 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-12 15:00:33,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 15:00:33,302 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-12 15:00:33,302 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 15:00:33,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-12 15:00:33,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 15:00:33,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:33,310 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:00:33,325 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:33,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:33,351 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-12 15:00:33,351 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:00:33,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 15:00:33,353 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 15:00:33,353 INFO L226 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-12 15:00:35,737 INFO L241 LiptonReduction]: Total number of compositions: 45 [2022-12-12 15:00:35,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:00:35,751 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;@7c1458a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:00:35,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 15:00:35,759 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-12 15:00:35,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:00:35,759 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:00:35,760 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 15:00:35,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:00:35,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:00:35,764 INFO L85 PathProgramCache]: Analyzing trace with hash 6971877, now seen corresponding path program 1 times [2022-12-12 15:00:35,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:00:35,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044468858] [2022-12-12 15:00:35,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:00:35,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:00:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:00:35,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 15:00:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:00:35,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 15:00:35,940 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 15:00:35,941 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 15:00:35,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 15:00:35,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:00:35,943 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 15:00:35,947 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:00:35,947 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:00:35,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:00:35 BasicIcfg [2022-12-12 15:00:35,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:00:35,964 INFO L158 Benchmark]: Toolchain (without parser) took 3576.10ms. Allocated memory was 202.4MB in the beginning and 245.4MB in the end (delta: 43.0MB). Free memory was 176.7MB in the beginning and 177.7MB in the end (delta: -1.1MB). Peak memory consumption was 41.4MB. Max. memory is 8.0GB. [2022-12-12 15:00:35,965 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 202.4MB. Free memory is still 178.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:00:35,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.78ms. Allocated memory is still 202.4MB. Free memory was 176.7MB in the beginning and 157.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 15:00:35,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.72ms. Allocated memory is still 202.4MB. Free memory was 157.7MB in the beginning and 155.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 15:00:35,966 INFO L158 Benchmark]: Boogie Preprocessor took 14.53ms. Allocated memory is still 202.4MB. Free memory was 155.7MB in the beginning and 154.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 15:00:35,966 INFO L158 Benchmark]: RCFGBuilder took 341.70ms. Allocated memory is still 202.4MB. Free memory was 154.6MB in the beginning and 141.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 15:00:35,966 INFO L158 Benchmark]: TraceAbstraction took 2813.85ms. Allocated memory was 202.4MB in the beginning and 245.4MB in the end (delta: 43.0MB). Free memory was 140.0MB in the beginning and 177.7MB in the end (delta: -37.8MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. [2022-12-12 15:00:35,968 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 202.4MB. Free memory is still 178.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 352.78ms. Allocated memory is still 202.4MB. Free memory was 176.7MB in the beginning and 157.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.72ms. Allocated memory is still 202.4MB. Free memory was 157.7MB in the beginning and 155.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.53ms. Allocated memory is still 202.4MB. Free memory was 155.7MB in the beginning and 154.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 341.70ms. Allocated memory is still 202.4MB. Free memory was 154.6MB in the beginning and 141.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2813.85ms. Allocated memory was 202.4MB in the beginning and 245.4MB in the end (delta: 43.0MB). Free memory was 140.0MB in the beginning and 177.7MB in the end (delta: -37.8MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 56 PlacesBefore, 22 PlacesAfterwards, 52 TransitionsBefore, 18 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 280, independent: 244, independent conditional: 244, independent unconditional: 0, dependent: 36, dependent conditional: 36, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 280, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 280, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 280, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 191, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 191, independent: 161, independent conditional: 0, independent unconditional: 161, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 280, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 191, unknown conditional: 0, unknown unconditional: 191] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 329, Positive conditional cache size: 0, Positive unconditional cache size: 329, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-12 15:00:35,984 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...