/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:40:54,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:40:54,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:40:54,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:40:54,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:40:54,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:40:54,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:40:54,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:40:54,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:40:54,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:40:54,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:40:54,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:40:54,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:40:54,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:40:54,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:40:54,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:40:54,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:40:54,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:40:54,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:40:54,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:40:54,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:40:54,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:40:54,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:40:54,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:40:54,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 01:40:54,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:40:54,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:40:54,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:40:54,166 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-RepeatedSemanticLbe.epf [2022-12-06 01:40:54,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:40:54,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:40:54,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:40:54,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:40:54,196 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:40:54,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:40:54,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:40:54,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:40:54,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:40:54,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:40:54,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:40:54,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:40:54,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:40:54,197 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:40:54,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:40:54,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:40:54,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:40:54,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:40:54,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:40:54,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:40:54,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:40:54,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:40:54,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:40:54,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:40:54,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:40:54,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:40:54,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:40:54,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:40:54,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:40:54,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:40:54,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:40:54,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:40:54,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:40:54,495 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:40:54,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 01:40:55,466 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:40:55,738 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:40:55,738 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 01:40:55,757 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae37a703/de8f30d22be44c45a13f93a061d71608/FLAG5ce3ff068 [2022-12-06 01:40:55,774 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae37a703/de8f30d22be44c45a13f93a061d71608 [2022-12-06 01:40:55,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:40:55,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:40:55,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:40:55,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:40:55,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:40:55,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:40:55" (1/1) ... [2022-12-06 01:40:55,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50189aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55, skipping insertion in model container [2022-12-06 01:40:55,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:40:55" (1/1) ... [2022-12-06 01:40:55,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:40:55,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:40:55,961 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-06 01:40:56,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:40:56,093 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:40:56,103 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-06 01:40:56,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:40:56,160 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:40:56,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56 WrapperNode [2022-12-06 01:40:56,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:40:56,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:40:56,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:40:56,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:40:56,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,204 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-06 01:40:56,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:40:56,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:40:56,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:40:56,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:40:56,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:40:56,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:40:56,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:40:56,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:40:56,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (1/1) ... [2022-12-06 01:40:56,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:40:56,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:40:56,271 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 01:40:56,278 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 01:40:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:40:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 01:40:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:40:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:40:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 01:40:56,300 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 01:40:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:40:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:40:56,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:40:56,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:40:56,302 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 01:40:56,377 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:40:56,378 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:40:56,528 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:40:56,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:40:56,533 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 01:40:56,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:56 BoogieIcfgContainer [2022-12-06 01:40:56,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:40:56,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:40:56,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:40:56,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:40:56,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:40:55" (1/3) ... [2022-12-06 01:40:56,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d9a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:40:56, skipping insertion in model container [2022-12-06 01:40:56,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:56" (2/3) ... [2022-12-06 01:40:56,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d9a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:40:56, skipping insertion in model container [2022-12-06 01:40:56,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:56" (3/3) ... [2022-12-06 01:40:56,539 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 01:40:56,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:40:56,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:40:56,567 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:40:56,625 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 01:40:56,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2022-12-06 01:40:56,706 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2022-12-06 01:40:56,706 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:40:56,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-12-06 01:40:56,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2022-12-06 01:40:56,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2022-12-06 01:40:56,716 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:40:56,731 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2022-12-06 01:40:56,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2022-12-06 01:40:56,750 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-12-06 01:40:56,750 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:40:56,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 01:40:56,751 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2022-12-06 01:40:56,751 INFO L188 LiptonReduction]: Number of co-enabled transitions 240 [2022-12-06 01:40:58,802 INFO L203 LiptonReduction]: Total number of compositions: 43 [2022-12-06 01:40:58,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:40:58,816 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=REPEATED_LIPTON_PN, 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;@17297d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:40:58,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 01:40:58,818 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-06 01:40:58,818 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:40:58,818 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:40:58,819 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 01:40:58,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:40:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:40:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash 196294938, now seen corresponding path program 1 times [2022-12-06 01:40:58,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:40:58,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045590444] [2022-12-06 01:40:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:40:58,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:40:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:40:58,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 01:40:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:40:58,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 01:40:58,928 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 01:40:58,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 01:40:58,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 01:40:58,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:40:58,930 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 01:40:58,933 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:40:58,933 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:40:58,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:40:58 BasicIcfg [2022-12-06 01:40:58,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:40:58,945 INFO L158 Benchmark]: Toolchain (without parser) took 3168.60ms. Allocated memory was 196.1MB in the beginning and 246.4MB in the end (delta: 50.3MB). Free memory was 170.1MB in the beginning and 185.3MB in the end (delta: -15.1MB). Peak memory consumption was 36.3MB. Max. memory is 8.0GB. [2022-12-06 01:40:58,946 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory was 172.1MB in the beginning and 172.0MB in the end (delta: 88.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:40:58,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.55ms. Allocated memory is still 196.1MB. Free memory was 170.1MB in the beginning and 151.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 01:40:58,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.91ms. Allocated memory is still 196.1MB. Free memory was 151.2MB in the beginning and 149.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:40:58,947 INFO L158 Benchmark]: Boogie Preprocessor took 24.92ms. Allocated memory is still 196.1MB. Free memory was 149.2MB in the beginning and 148.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 01:40:58,947 INFO L158 Benchmark]: RCFGBuilder took 304.03ms. Allocated memory is still 196.1MB. Free memory was 148.1MB in the beginning and 135.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 01:40:58,947 INFO L158 Benchmark]: TraceAbstraction took 2409.34ms. Allocated memory was 196.1MB in the beginning and 246.4MB in the end (delta: 50.3MB). Free memory was 134.5MB in the beginning and 185.3MB in the end (delta: -50.8MB). Peak memory consumption was 609.9kB. Max. memory is 8.0GB. [2022-12-06 01:40:58,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory was 172.1MB in the beginning and 172.0MB in the end (delta: 88.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 381.55ms. Allocated memory is still 196.1MB. Free memory was 170.1MB in the beginning and 151.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.91ms. Allocated memory is still 196.1MB. Free memory was 151.2MB in the beginning and 149.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.92ms. Allocated memory is still 196.1MB. Free memory was 149.2MB in the beginning and 148.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 304.03ms. Allocated memory is still 196.1MB. Free memory was 148.1MB in the beginning and 135.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2409.34ms. Allocated memory was 196.1MB in the beginning and 246.4MB in the end (delta: 50.3MB). Free memory was 134.5MB in the beginning and 185.3MB in the end (delta: -50.8MB). Peak memory consumption was 609.9kB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 55 PlacesBefore, 15 PlacesAfterwards, 51 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 15 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 178, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 171, independent: 145, independent conditional: 0, independent unconditional: 145, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 171, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 217, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 252, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, 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 g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: 694]: 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, 72 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: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 5 NumberOfCodeBlocks, 5 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 01:40:58,974 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...