/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:56:40,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:56:40,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:56:40,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:56:40,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:56:40,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:56:40,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:56:40,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:56:40,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:56:40,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:56:40,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:56:40,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:56:40,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:56:40,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:56:40,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:56:40,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:56:40,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:56:40,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:56:40,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:56:40,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:56:40,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:56:40,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:56:40,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:56:40,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:56:40,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:56:40,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:56:40,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:56:40,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:56:40,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:56:40,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 16:56:40,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:56:40,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:56:40,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:56:40,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:56:40,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:56:40,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:56:40,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:56:40,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:56:40,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:56:40,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:56:40,256 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:56:40,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:56:40,256 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:56:40,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:56:40,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:56:40,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:56:40,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:56:40,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:56:40,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:56:40,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:56:40,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:56:40,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:56:40,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:56:40,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:56:40,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:56:40,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:56:40,259 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:56:40,259 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:56:40,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:56:40,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:56:40,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:56:40,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:56:40,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:56:40,508 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:56:40,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-06 16:56:41,482 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:56:41,729 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:56:41,729 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-06 16:56:41,737 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd1ff698/bbeaef89a7be4d0c9401b42156fb0fe4/FLAGab1b0d31d [2022-12-06 16:56:41,750 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd1ff698/bbeaef89a7be4d0c9401b42156fb0fe4 [2022-12-06 16:56:41,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:56:41,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:56:41,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:56:41,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:56:41,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:56:41,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:41" (1/1) ... [2022-12-06 16:56:41,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6c7a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:41, skipping insertion in model container [2022-12-06 16:56:41,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:41" (1/1) ... [2022-12-06 16:56:41,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:56:41,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:56:41,970 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-06 16:56:42,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:56:42,105 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:56:42,114 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-06 16:56:42,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:56:42,171 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:56:42,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42 WrapperNode [2022-12-06 16:56:42,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:56:42,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:56:42,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:56:42,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:56:42,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,214 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-06 16:56:42,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:56:42,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:56:42,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:56:42,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:56:42,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,244 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:56:42,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:56:42,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:56:42,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:56:42,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (1/1) ... [2022-12-06 16:56:42,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:56:42,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:56:42,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:56:42,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:56:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:56:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:56:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:56:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:56:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:56:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:56:42,338 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:56:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:56:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:56:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:56:42,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:56:42,340 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:56:42,482 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:56:42,483 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:56:42,568 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:56:42,572 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:56:42,572 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:56:42,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:42 BoogieIcfgContainer [2022-12-06 16:56:42,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:56:42,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:56:42,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:56:42,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:56:42,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:56:41" (1/3) ... [2022-12-06 16:56:42,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2411ce5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:42, skipping insertion in model container [2022-12-06 16:56:42,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:42" (2/3) ... [2022-12-06 16:56:42,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2411ce5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:42, skipping insertion in model container [2022-12-06 16:56:42,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:42" (3/3) ... [2022-12-06 16:56:42,578 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-12-06 16:56:42,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:56:42,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:56:42,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:56:42,617 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 16:56:42,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-06 16:56:42,656 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-06 16:56:42,656 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:56:42,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-06 16:56:42,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-06 16:56:42,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-06 16:56:42,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:56:42,670 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;@39657f52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:56:42,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 16:56:42,679 INFO L130 PetriNetUnfolder]: 1/42 cut-off events. [2022-12-06 16:56:42,679 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:56:42,679 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:42,679 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:42,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-06 16:56:42,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:42,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1547985198, now seen corresponding path program 1 times [2022-12-06 16:56:42,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:42,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234780350] [2022-12-06 16:56:42,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:42,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:56:42,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:56:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:56:42,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:56:42,797 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:56:42,797 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 16:56:42,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 16:56:42,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-06 16:56:42,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:56:42,799 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 16:56:42,804 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:56:42,804 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:56:42,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:56:42 BasicIcfg [2022-12-06 16:56:42,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:56:42,821 INFO L158 Benchmark]: Toolchain (without parser) took 1068.77ms. Allocated memory is still 199.2MB. Free memory was 174.7MB in the beginning and 113.4MB in the end (delta: 61.3MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. [2022-12-06 16:56:42,822 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 199.2MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:56:42,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.38ms. Allocated memory is still 199.2MB. Free memory was 174.7MB in the beginning and 155.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:56:42,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.43ms. Allocated memory is still 199.2MB. Free memory was 155.8MB in the beginning and 153.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:56:42,823 INFO L158 Benchmark]: Boogie Preprocessor took 31.83ms. Allocated memory is still 199.2MB. Free memory was 153.7MB in the beginning and 152.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:56:42,823 INFO L158 Benchmark]: RCFGBuilder took 326.82ms. Allocated memory is still 199.2MB. Free memory was 152.2MB in the beginning and 140.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 16:56:42,823 INFO L158 Benchmark]: TraceAbstraction took 245.85ms. Allocated memory is still 199.2MB. Free memory was 139.1MB in the beginning and 113.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-12-06 16:56:42,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 199.2MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 408.38ms. Allocated memory is still 199.2MB. Free memory was 174.7MB in the beginning and 155.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.43ms. Allocated memory is still 199.2MB. Free memory was 155.8MB in the beginning and 153.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.83ms. Allocated memory is still 199.2MB. Free memory was 153.7MB in the beginning and 152.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 326.82ms. Allocated memory is still 199.2MB. Free memory was 152.2MB in the beginning and 140.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 245.85ms. Allocated memory is still 199.2MB. Free memory was 139.1MB in the beginning and 113.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; VAL [glob1=0] [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] COND FALSE 1 !(t == 42) VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 79 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-06 16:56:42,837 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...