/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 --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:01:53,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:01:53,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:01:53,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:01:53,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:01:53,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:01:53,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:01:53,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:01:53,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:01:53,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:01:53,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:01:53,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:01:53,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:01:53,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:01:53,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:01:53,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:01:53,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:01:53,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:01:53,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:01:53,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:01:53,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:01:53,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:01:53,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:01:53,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:01:53,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:01:53,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:01:53,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:01:53,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:01:53,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:01:53,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-12 19:01:53,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:01:53,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:01:53,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:01:53,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 19:01:53,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:01:53,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:01:53,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:01:53,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:01:53,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:01:53,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:01:53,352 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:01:53,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:01:53,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:01:53,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:01:53,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:01:53,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:01:53,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:01:53,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:01:53,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:01:53,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:01:53,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:01:53,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:01:53,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:01:53,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:01:53,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:01:53,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:01:53,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:01:53,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:01:53,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:01:53,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:01:53,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:01:53,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:01:53,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:01:53,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:01:53,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:01:53,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:01:53,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:01:53,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:01:53,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:01:53,649 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:01:53,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-12 19:01:54,664 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:01:54,851 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:01:54,851 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-12 19:01:54,859 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe0a7be1/493fa972cf66437380b71774c568ac00/FLAG5baf1a9af [2022-12-12 19:01:54,870 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe0a7be1/493fa972cf66437380b71774c568ac00 [2022-12-12 19:01:54,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:01:54,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:01:54,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:01:54,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:01:54,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:01:54,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:01:54" (1/1) ... [2022-12-12 19:01:54,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2d4fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:54, skipping insertion in model container [2022-12-12 19:01:54,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:01:54" (1/1) ... [2022-12-12 19:01:54,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:01:54,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:01:55,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-12 19:01:55,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:01:55,164 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:01:55,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-12 19:01:55,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:01:55,238 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:01:55,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55 WrapperNode [2022-12-12 19:01:55,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:01:55,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:01:55,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:01:55,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:01:55,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,273 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-12 19:01:55,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:01:55,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:01:55,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:01:55,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:01:55,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,286 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:01:55,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:01:55,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:01:55,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:01:55,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (1/1) ... [2022-12-12 19:01:55,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:01:55,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:01:55,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 19:01:55,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 19:01:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:01:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:01:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 19:01:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:01:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:01:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 19:01:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 19:01:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:01:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:01:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:01:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:01:55,357 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:01:55,448 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:01:55,449 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:01:55,549 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:01:55,554 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:01:55,554 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:01:55,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:01:55 BoogieIcfgContainer [2022-12-12 19:01:55,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:01:55,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:01:55,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:01:55,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:01:55,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:01:54" (1/3) ... [2022-12-12 19:01:55,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5f81a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:01:55, skipping insertion in model container [2022-12-12 19:01:55,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:01:55" (2/3) ... [2022-12-12 19:01:55,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5f81a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:01:55, skipping insertion in model container [2022-12-12 19:01:55,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:01:55" (3/3) ... [2022-12-12 19:01:55,561 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-12 19:01:55,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:01:55,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:01:55,573 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:01:55,604 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-12 19:01:55,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 19:01:55,678 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-12 19:01:55,678 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 19:01:55,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-12 19:01:55,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 19:01:55,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-12 19:01:55,685 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:01:55,696 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 19:01:55,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-12 19:01:55,709 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-12 19:01:55,710 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:01:55,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 19:01:55,711 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 19:01:55,711 INFO L226 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-12 19:01:57,987 INFO L241 LiptonReduction]: Total number of compositions: 45 [2022-12-12 19:01:57,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:01:58,001 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;@4369dfa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:01:58,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 19:01:58,004 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-12 19:01:58,004 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:01:58,004 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:01:58,005 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 19:01:58,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 19:01:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:01:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash 6971877, now seen corresponding path program 1 times [2022-12-12 19:01:58,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:01:58,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236211319] [2022-12-12 19:01:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:01:58,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:01:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:01:58,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 19:01:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:01:58,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 19:01:58,155 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 19:01:58,155 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 19:01:58,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 19:01:58,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:01:58,157 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 19:01:58,163 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:01:58,163 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:01:58,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:01:58 BasicIcfg [2022-12-12 19:01:58,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:01:58,178 INFO L158 Benchmark]: Toolchain (without parser) took 3305.43ms. Allocated memory was 199.2MB in the beginning and 254.8MB in the end (delta: 55.6MB). Free memory was 158.2MB in the beginning and 151.7MB in the end (delta: 6.5MB). Peak memory consumption was 63.2MB. Max. memory is 8.0GB. [2022-12-12 19:01:58,178 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 175.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:01:58,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.96ms. Allocated memory is still 199.2MB. Free memory was 158.2MB in the beginning and 138.2MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 19:01:58,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.97ms. Allocated memory is still 199.2MB. Free memory was 138.2MB in the beginning and 136.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:01:58,179 INFO L158 Benchmark]: Boogie Preprocessor took 14.33ms. Allocated memory is still 199.2MB. Free memory was 136.2MB in the beginning and 135.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 19:01:58,180 INFO L158 Benchmark]: RCFGBuilder took 266.21ms. Allocated memory is still 199.2MB. Free memory was 134.6MB in the beginning and 122.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 19:01:58,180 INFO L158 Benchmark]: TraceAbstraction took 2620.24ms. Allocated memory was 199.2MB in the beginning and 254.8MB in the end (delta: 55.6MB). Free memory was 121.0MB in the beginning and 151.7MB in the end (delta: -30.7MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. [2022-12-12 19:01:58,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 175.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.96ms. Allocated memory is still 199.2MB. Free memory was 158.2MB in the beginning and 138.2MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.97ms. Allocated memory is still 199.2MB. Free memory was 138.2MB in the beginning and 136.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.33ms. Allocated memory is still 199.2MB. Free memory was 136.2MB in the beginning and 135.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 266.21ms. Allocated memory is still 199.2MB. Free memory was 134.6MB in the beginning and 122.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2620.24ms. Allocated memory was 199.2MB in the beginning and 254.8MB in the end (delta: 55.6MB). Free memory was 121.0MB in the beginning and 151.7MB in the end (delta: -30.7MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 56 PlacesBefore, 22 PlacesAfterwards, 52 TransitionsBefore, 18 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 280, independent: 244, independent conditional: 244, independent unconditional: 0, dependent: 36, dependent conditional: 36, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 280, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 280, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 280, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 191, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 191, independent: 161, independent conditional: 0, independent unconditional: 161, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 56, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 280, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 191, unknown conditional: 0, unknown unconditional: 191] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 329, Positive conditional cache size: 0, Positive unconditional cache size: 329, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-12 19:01:58,195 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...