/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:45:23,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:45:23,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:45:23,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:45:23,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:45:23,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:45:23,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:45:23,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:45:23,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:45:23,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:45:23,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:45:23,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:45:23,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:45:23,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:45:23,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:45:23,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:45:23,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:45:23,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:45:23,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:45:23,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:45:23,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:45:23,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:45:23,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:45:23,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:45:23,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:45:23,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:45:23,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:45:23,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:45:23,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:45:23,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-05 20:45:23,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:45:23,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:45:23,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:45:23,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:45:23,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:45:23,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:45:23,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:45:23,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:45:23,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:45:23,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:45:23,171 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:45:23,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:45:23,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:45:23,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:45:23,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:45:23,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:45:23,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:45:23,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:45:23,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:45:23,173 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:45:23,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:45:23,173 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:45:23,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:45:23,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:45:23,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:45:23,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:45:23,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:45:23,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:45:23,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:45:23,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:45:23,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:45:23,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:45:23,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:45:23,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:45:23,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:45:23,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:45:23,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:45:23,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:45:23,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:45:23,504 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:45:23,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2022-12-05 20:45:24,373 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:45:24,567 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:45:24,568 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2022-12-05 20:45:24,575 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afa3085eb/a9f3e32672d84251ba699e42943e0dd5/FLAGe0fd7f2f3 [2022-12-05 20:45:24,584 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afa3085eb/a9f3e32672d84251ba699e42943e0dd5 [2022-12-05 20:45:24,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:45:24,586 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:45:24,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:45:24,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:45:24,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:45:24,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b75075d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24, skipping insertion in model container [2022-12-05 20:45:24,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:45:24,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:45:24,705 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2022-12-05 20:45:24,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:45:24,780 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:45:24,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2022-12-05 20:45:24,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:45:24,831 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:45:24,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24 WrapperNode [2022-12-05 20:45:24,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:45:24,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:45:24,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:45:24,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:45:24,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,858 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-05 20:45:24,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:45:24,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:45:24,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:45:24,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:45:24,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:45:24,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:45:24,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:45:24,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:45:24,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (1/1) ... [2022-12-05 20:45:24,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:45:24,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:45:24,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:45:24,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:45:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:45:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:45:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:45:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:45:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:45:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:45:24,934 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:45:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:45:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:45:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:45:24,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:45:24,935 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:45:25,041 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:45:25,043 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:45:25,173 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:45:25,177 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:45:25,177 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:45:25,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:45:25 BoogieIcfgContainer [2022-12-05 20:45:25,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:45:25,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:45:25,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:45:25,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:45:25,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:45:24" (1/3) ... [2022-12-05 20:45:25,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e831d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:45:25, skipping insertion in model container [2022-12-05 20:45:25,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:45:24" (2/3) ... [2022-12-05 20:45:25,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e831d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:45:25, skipping insertion in model container [2022-12-05 20:45:25,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:45:25" (3/3) ... [2022-12-05 20:45:25,184 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2022-12-05 20:45:25,196 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:45:25,196 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:45:25,196 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:45:25,238 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:45:25,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 20:45:25,320 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-05 20:45:25,320 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:45:25,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-05 20:45:25,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 20:45:25,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:25,327 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:45:25,351 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:25,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:25,365 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-05 20:45:25,365 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:45:25,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-05 20:45:25,366 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 20:45:25,367 INFO L188 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-05 20:45:27,234 INFO L203 LiptonReduction]: Total number of compositions: 39 [2022-12-05 20:45:27,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:45:27,247 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;@3b39a2fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:45:27,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 20:45:27,248 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-05 20:45:27,248 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:45:27,249 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:45:27,249 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 20:45:27,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-05 20:45:27,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:45:27,252 INFO L85 PathProgramCache]: Analyzing trace with hash 218122, now seen corresponding path program 1 times [2022-12-05 20:45:27,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:45:27,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913067180] [2022-12-05 20:45:27,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:45:27,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:45:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:45:27,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:45:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:45:27,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:45:27,367 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:45:27,368 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 20:45:27,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 20:45:27,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-05 20:45:27,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:45:27,370 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 20:45:27,377 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:45:27,377 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:45:27,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:45:27 BasicIcfg [2022-12-05 20:45:27,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:45:27,393 INFO L158 Benchmark]: Toolchain (without parser) took 2805.85ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 163.0MB in the beginning and 125.5MB in the end (delta: 37.5MB). Peak memory consumption was 76.8MB. Max. memory is 8.0GB. [2022-12-05 20:45:27,399 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory was 110.6MB in the beginning and 110.6MB in the end (delta: 54.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:45:27,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.64ms. Allocated memory is still 188.7MB. Free memory was 162.7MB in the beginning and 143.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 20:45:27,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.61ms. Allocated memory is still 188.7MB. Free memory was 143.8MB in the beginning and 141.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:45:27,400 INFO L158 Benchmark]: Boogie Preprocessor took 13.27ms. Allocated memory is still 188.7MB. Free memory was 141.7MB in the beginning and 140.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:45:27,400 INFO L158 Benchmark]: RCFGBuilder took 306.10ms. Allocated memory is still 188.7MB. Free memory was 140.4MB in the beginning and 160.2MB in the end (delta: -19.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-05 20:45:27,401 INFO L158 Benchmark]: TraceAbstraction took 2211.34ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 159.7MB in the beginning and 125.5MB in the end (delta: 34.2MB). Peak memory consumption was 73.0MB. Max. memory is 8.0GB. [2022-12-05 20:45:27,402 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 127.9MB. Free memory was 110.6MB in the beginning and 110.6MB in the end (delta: 54.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.64ms. Allocated memory is still 188.7MB. Free memory was 162.7MB in the beginning and 143.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.61ms. Allocated memory is still 188.7MB. Free memory was 143.8MB in the beginning and 141.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.27ms. Allocated memory is still 188.7MB. Free memory was 141.7MB in the beginning and 140.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 306.10ms. Allocated memory is still 188.7MB. Free memory was 140.4MB in the beginning and 160.2MB in the end (delta: -19.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2211.34ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 159.7MB in the beginning and 125.5MB in the end (delta: 34.2MB). Peak memory consumption was 73.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 46 PlacesBefore, 9 PlacesAfterwards, 43 TransitionsBefore, 5 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 100, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 100, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 100, unknown conditional: 0, unknown unconditional: 100] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [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: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-05 20:45:27,416 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...