/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:40:07,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:40:07,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:40:07,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:40:07,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:40:07,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:40:07,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:40:07,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:40:07,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:40:07,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:40:07,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:40:07,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:40:07,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:40:07,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:40:07,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:40:07,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:40:07,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:40:07,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:40:07,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:40:07,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:40:07,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:40:07,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:40:07,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:40:07,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:40:07,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:40:07,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:40:07,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:40:07,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:40:07,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:40:07,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:40:07,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:40:07,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:40:07,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:40:07,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:40:07,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:40:07,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:40:07,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:40:07,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:40:07,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:40:07,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:40:07,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:40:07,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 03:40:07,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:40:07,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:40:07,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:40:07,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:40:07,397 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:40:07,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:40:07,398 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:40:07,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:40:07,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:40:07,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:40:07,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:40:07,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:40:07,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:40:07,399 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:40:07,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:40:07,399 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:40:07,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:40:07,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:40:07,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:40:07,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:40:07,401 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:40:07,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:40:07,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:40:07,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:40:07,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:40:07,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:40:07,675 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:40:07,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 03:40:08,581 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:40:08,827 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:40:08,828 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 03:40:08,841 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48a9dcea/7e9ae6c1c85e4ae78b3263ac9ae94fc5/FLAG6540f1bcd [2022-12-13 03:40:08,857 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48a9dcea/7e9ae6c1c85e4ae78b3263ac9ae94fc5 [2022-12-13 03:40:08,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:40:08,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:40:08,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:40:08,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:40:08,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:40:08,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:40:08" (1/1) ... [2022-12-13 03:40:08,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148ff604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:08, skipping insertion in model container [2022-12-13 03:40:08,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:40:08" (1/1) ... [2022-12-13 03:40:08,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:40:08,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:40:09,035 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_2_neg.i[1103,1116] [2022-12-13 03:40:09,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:40:09,169 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:40:09,179 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_2_neg.i[1103,1116] [2022-12-13 03:40:09,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:40:09,237 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:40:09,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09 WrapperNode [2022-12-13 03:40:09,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:40:09,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:40:09,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:40:09,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:40:09,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,274 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-13 03:40:09,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:40:09,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:40:09,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:40:09,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:40:09,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:40:09,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:40:09,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:40:09,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:40:09,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (1/1) ... [2022-12-13 03:40:09,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:40:09,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:40:09,346 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) [2022-12-13 03:40:09,349 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 [2022-12-13 03:40:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 03:40:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:40:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 03:40:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:40:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:40:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 03:40:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 03:40:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:40:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:40:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:40:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:40:09,378 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:40:09,461 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:40:09,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:40:09,640 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:40:09,645 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:40:09,645 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:40:09,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:40:09 BoogieIcfgContainer [2022-12-13 03:40:09,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:40:09,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:40:09,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:40:09,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:40:09,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:40:08" (1/3) ... [2022-12-13 03:40:09,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e416cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:40:09, skipping insertion in model container [2022-12-13 03:40:09,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:09" (2/3) ... [2022-12-13 03:40:09,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e416cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:40:09, skipping insertion in model container [2022-12-13 03:40:09,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:40:09" (3/3) ... [2022-12-13 03:40:09,652 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 03:40:09,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:40:09,666 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:40:09,666 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:40:09,708 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 03:40:09,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-13 03:40:09,777 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-13 03:40:09,777 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 03:40:09,780 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. [2022-12-13 03:40:09,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-13 03:40:09,786 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-13 03:40:09,788 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:40:09,810 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-13 03:40:09,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-13 03:40:09,847 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-13 03:40:09,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:40:09,848 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. [2022-12-13 03:40:09,849 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-13 03:40:09,850 INFO L226 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-13 03:40:12,168 INFO L241 LiptonReduction]: Total number of compositions: 45 [2022-12-13 03:40:12,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:40:12,182 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78ced1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:40:12,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 03:40:12,189 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 03:40:12,189 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:40:12,189 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:40:12,190 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 03:40:12,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:40:12,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:40:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash 6971877, now seen corresponding path program 1 times [2022-12-13 03:40:12,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:40:12,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554070616] [2022-12-13 03:40:12,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:40:12,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:40:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:40:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:40:12,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:40:12,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554070616] [2022-12-13 03:40:12,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554070616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:40:12,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:40:12,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:40:12,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755504435] [2022-12-13 03:40:12,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:40:12,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:40:12,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:40:12,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:40:12,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:40:12,501 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-13 03:40:12,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:40:12,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:40:12,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-13 03:40:12,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:40:12,542 INFO L130 PetriNetUnfolder]: 13/51 cut-off events. [2022-12-13 03:40:12,542 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:40:12,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 51 events. 13/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 184 event pairs, 10 based on Foata normal form. 9/40 useless extension candidates. Maximal degree in co-relation 92. Up to 31 conditions per place. [2022-12-13 03:40:12,543 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 8 selfloop transitions, 4 changer transitions 5/19 dead transitions. [2022-12-13 03:40:12,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 73 flow [2022-12-13 03:40:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:40:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:40:12,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2022-12-13 03:40:12,551 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2022-12-13 03:40:12,553 INFO L295 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2022-12-13 03:40:12,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 19 transitions, 73 flow [2022-12-13 03:40:12,554 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 55 flow [2022-12-13 03:40:12,555 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:40:12,555 INFO L89 Accepts]: Start accepts. Operand has 19 places, 14 transitions, 55 flow [2022-12-13 03:40:12,557 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:40:12,557 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:40:12,557 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 55 flow [2022-12-13 03:40:12,562 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 55 flow [2022-12-13 03:40:12,563 INFO L226 LiptonReduction]: Number of co-enabled transitions 6 [2022-12-13 03:40:12,605 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:40:12,606 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 51 [2022-12-13 03:40:12,606 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 14 transitions, 55 flow [2022-12-13 03:40:12,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:40:12,607 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:40:12,607 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 03:40:12,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:40:12,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:40:12,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:40:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash 216127854, now seen corresponding path program 1 times [2022-12-13 03:40:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:40:12,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733831690] [2022-12-13 03:40:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:40:12,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:40:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:40:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:40:12,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:40:12,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733831690] [2022-12-13 03:40:12,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733831690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:40:12,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:40:12,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:40:12,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420242078] [2022-12-13 03:40:12,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:40:12,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:40:12,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:40:12,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:40:12,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:40:12,787 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-13 03:40:12,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:40:12,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:40:12,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-13 03:40:12,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:40:12,821 INFO L130 PetriNetUnfolder]: 3/20 cut-off events. [2022-12-13 03:40:12,822 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 03:40:12,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 20 events. 3/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 54 event pairs, 0 based on Foata normal form. 5/20 useless extension candidates. Maximal degree in co-relation 51. Up to 13 conditions per place. [2022-12-13 03:40:12,822 INFO L137 encePairwiseOnDemand]: 8/14 looper letters, 1 selfloop transitions, 4 changer transitions 11/16 dead transitions. [2022-12-13 03:40:12,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 93 flow [2022-12-13 03:40:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:40:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:40:12,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-12-13 03:40:12,824 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3392857142857143 [2022-12-13 03:40:12,824 INFO L295 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 03:40:12,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 16 transitions, 93 flow [2022-12-13 03:40:12,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 14 places, 5 transitions, 31 flow [2022-12-13 03:40:12,825 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:40:12,826 INFO L89 Accepts]: Start accepts. Operand has 14 places, 5 transitions, 31 flow [2022-12-13 03:40:12,826 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:40:12,826 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:40:12,826 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 5 transitions, 31 flow [2022-12-13 03:40:12,828 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 5 transitions, 31 flow [2022-12-13 03:40:12,828 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 03:40:12,869 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:40:12,870 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 45 [2022-12-13 03:40:12,870 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 4 transitions, 27 flow [2022-12-13 03:40:12,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:40:12,870 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:40:12,870 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 03:40:12,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:40:12,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:40:12,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:40:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash 6972720, now seen corresponding path program 1 times [2022-12-13 03:40:12,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:40:12,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212322417] [2022-12-13 03:40:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:40:12,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:40:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:40:12,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 03:40:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:40:12,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 03:40:12,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 03:40:12,908 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 03:40:12,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 03:40:12,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:40:12,913 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 03:40:12,917 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:40:12,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:40:12,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:40:12 BasicIcfg [2022-12-13 03:40:12,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:40:12,932 INFO L158 Benchmark]: Toolchain (without parser) took 4071.84ms. Allocated memory was 196.1MB in the beginning and 243.3MB in the end (delta: 47.2MB). Free memory was 170.8MB in the beginning and 130.2MB in the end (delta: 40.6MB). Peak memory consumption was 88.3MB. Max. memory is 8.0GB. [2022-12-13 03:40:12,932 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory was 172.7MB in the beginning and 172.6MB in the end (delta: 100.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:40:12,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.63ms. Allocated memory is still 196.1MB. Free memory was 170.8MB in the beginning and 151.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 03:40:12,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.42ms. Allocated memory is still 196.1MB. Free memory was 151.9MB in the beginning and 149.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:40:12,933 INFO L158 Benchmark]: Boogie Preprocessor took 31.25ms. Allocated memory is still 196.1MB. Free memory was 149.8MB in the beginning and 148.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:40:12,933 INFO L158 Benchmark]: RCFGBuilder took 339.29ms. Allocated memory is still 196.1MB. Free memory was 148.2MB in the beginning and 135.1MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-13 03:40:12,934 INFO L158 Benchmark]: TraceAbstraction took 3283.45ms. Allocated memory was 196.1MB in the beginning and 243.3MB in the end (delta: 47.2MB). Free memory was 134.1MB in the beginning and 130.2MB in the end (delta: 3.9MB). Peak memory consumption was 51.6MB. Max. memory is 8.0GB. [2022-12-13 03:40:12,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory was 172.7MB in the beginning and 172.6MB in the end (delta: 100.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 376.63ms. Allocated memory is still 196.1MB. Free memory was 170.8MB in the beginning and 151.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.42ms. Allocated memory is still 196.1MB. Free memory was 151.9MB in the beginning and 149.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.25ms. Allocated memory is still 196.1MB. Free memory was 149.8MB in the beginning and 148.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 339.29ms. Allocated memory is still 196.1MB. Free memory was 148.2MB in the beginning and 135.1MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3283.45ms. Allocated memory was 196.1MB in the beginning and 243.3MB in the end (delta: 47.2MB). Free memory was 134.1MB in the beginning and 130.2MB in the end (delta: 3.9MB). Peak memory consumption was 51.6MB. 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: 292, independent: 242, independent conditional: 242, independent unconditional: 0, dependent: 50, dependent conditional: 50, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 189, independent: 164, independent conditional: 0, independent unconditional: 164, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 189, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 292, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 189, unknown conditional: 0, unknown unconditional: 189] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 296, Positive conditional cache size: 0, Positive unconditional cache size: 296, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 19 PlacesBefore, 19 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 1, 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: 2, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 2, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 2, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 2, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 14 PlacesBefore, 13 PlacesAfterwards, 5 TransitionsBefore, 4 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, 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: [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] [L687] 1 glob1 = 5 [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, 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: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 0 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-12-13 03:40:12,949 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...