/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 03:52:00,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 03:52:00,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 03:52:00,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 03:52:00,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 03:52:00,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 03:52:00,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 03:52:00,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 03:52:00,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 03:52:00,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 03:52:00,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 03:52:00,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 03:52:00,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 03:52:00,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 03:52:00,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 03:52:00,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 03:52:00,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 03:52:00,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 03:52:00,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 03:52:00,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 03:52:00,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 03:52:00,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 03:52:00,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 03:52:00,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 03:52:00,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 03:52:00,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 03:52:00,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 03:52:00,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 03:52:00,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 03:52:00,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 03:52:00,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 03:52:00,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 03:52:00,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 03:52:00,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 03:52:00,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 03:52:00,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 03:52:00,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 03:52:00,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 03:52:00,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 03:52:00,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 03:52:00,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 03:52:00,896 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 03:52:00,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 03:52:00,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 03:52:00,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 03:52:00,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 03:52:00,927 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 03:52:00,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 03:52:00,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 03:52:00,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 03:52:00,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 03:52:00,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 03:52:00,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 03:52:01,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 03:52:01,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 03:52:01,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 03:52:01,187 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 03:52:01,188 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 03:52:01,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2022-12-06 03:52:02,551 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 03:52:02,814 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 03:52:02,815 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2022-12-06 03:52:02,835 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429e9b7dd/4ddd8e6eded248febb93ca6020f51393/FLAG0f0b609fc [2022-12-06 03:52:02,853 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429e9b7dd/4ddd8e6eded248febb93ca6020f51393 [2022-12-06 03:52:02,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 03:52:02,857 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 03:52:02,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 03:52:02,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 03:52:02,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 03:52:02,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:52:02" (1/1) ... [2022-12-06 03:52:02,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1259626e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:02, skipping insertion in model container [2022-12-06 03:52:02,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:52:02" (1/1) ... [2022-12-06 03:52:02,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 03:52:02,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 03:52:03,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2022-12-06 03:52:03,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 03:52:03,196 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 03:52:03,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2022-12-06 03:52:03,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 03:52:03,260 INFO L208 MainTranslator]: Completed translation [2022-12-06 03:52:03,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03 WrapperNode [2022-12-06 03:52:03,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 03:52:03,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 03:52:03,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 03:52:03,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 03:52:03,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,292 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-12-06 03:52:03,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 03:52:03,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 03:52:03,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 03:52:03,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 03:52:03,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 03:52:03,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 03:52:03,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 03:52:03,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 03:52:03,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (1/1) ... [2022-12-06 03:52:03,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 03:52:03,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 03:52:03,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 03:52:03,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 03:52:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 03:52:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 03:52:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 03:52:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 03:52:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 03:52:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 03:52:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 03:52:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 03:52:03,392 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 03:52:03,469 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 03:52:03,470 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 03:52:03,640 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 03:52:03,645 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 03:52:03,645 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 03:52:03,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:52:03 BoogieIcfgContainer [2022-12-06 03:52:03,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 03:52:03,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 03:52:03,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 03:52:03,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 03:52:03,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 03:52:02" (1/3) ... [2022-12-06 03:52:03,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7071eb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 03:52:03, skipping insertion in model container [2022-12-06 03:52:03,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:52:03" (2/3) ... [2022-12-06 03:52:03,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7071eb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 03:52:03, skipping insertion in model container [2022-12-06 03:52:03,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:52:03" (3/3) ... [2022-12-06 03:52:03,651 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2022-12-06 03:52:03,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 03:52:03,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 03:52:03,663 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 03:52:03,749 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 03:52:03,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 87 transitions, 198 flow [2022-12-06 03:52:03,829 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-12-06 03:52:03,830 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 03:52:03,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 84 events. 1/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-06 03:52:03,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 87 transitions, 198 flow [2022-12-06 03:52:03,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 149 flow [2022-12-06 03:52:03,838 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 03:52:03,852 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 67 transitions, 149 flow [2022-12-06 03:52:03,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 67 transitions, 149 flow [2022-12-06 03:52:03,884 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-12-06 03:52:03,884 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 03:52:03,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 67 events. 0/67 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-06 03:52:03,887 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 67 transitions, 149 flow [2022-12-06 03:52:03,887 INFO L188 LiptonReduction]: Number of co-enabled transitions 814 [2022-12-06 03:52:06,499 INFO L203 LiptonReduction]: Total number of compositions: 47 [2022-12-06 03:52:06,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 03:52:06,513 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;@3eb73db0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 03:52:06,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 03:52:06,515 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-06 03:52:06,516 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 03:52:06,516 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 03:52:06,516 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 03:52:06,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 03:52:06,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 03:52:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1467362048, now seen corresponding path program 1 times [2022-12-06 03:52:06,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 03:52:06,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660032375] [2022-12-06 03:52:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 03:52:06,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 03:52:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 03:52:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 03:52:06,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 03:52:06,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660032375] [2022-12-06 03:52:06,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660032375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 03:52:06,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 03:52:06,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 03:52:06,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369569585] [2022-12-06 03:52:06,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 03:52:06,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 03:52:06,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 03:52:06,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 03:52:06,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 03:52:06,769 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 22 [2022-12-06 03:52:06,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-06 03:52:06,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 03:52:06,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 22 [2022-12-06 03:52:06,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 03:52:06,859 INFO L130 PetriNetUnfolder]: 285/477 cut-off events. [2022-12-06 03:52:06,859 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-06 03:52:06,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 477 events. 285/477 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1695 event pairs, 103 based on Foata normal form. 12/489 useless extension candidates. Maximal degree in co-relation 861. Up to 385 conditions per place. [2022-12-06 03:52:06,863 INFO L137 encePairwiseOnDemand]: 18/22 looper letters, 28 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2022-12-06 03:52:06,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 149 flow [2022-12-06 03:52:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 03:52:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 03:52:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-12-06 03:52:06,871 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2022-12-06 03:52:06,872 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 59 flow. Second operand 3 states and 38 transitions. [2022-12-06 03:52:06,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 149 flow [2022-12-06 03:52:06,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 137 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-06 03:52:06,875 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 69 flow [2022-12-06 03:52:06,876 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2022-12-06 03:52:06,879 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2022-12-06 03:52:06,879 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 03:52:06,879 INFO L89 Accepts]: Start accepts. Operand has 30 places, 24 transitions, 69 flow [2022-12-06 03:52:06,881 INFO L95 Accepts]: Finished accepts. [2022-12-06 03:52:06,881 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 03:52:06,881 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 24 transitions, 69 flow [2022-12-06 03:52:06,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 24 transitions, 69 flow [2022-12-06 03:52:06,885 INFO L130 PetriNetUnfolder]: 3/32 cut-off events. [2022-12-06 03:52:06,885 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 03:52:06,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 32 events. 3/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 37. Up to 10 conditions per place. [2022-12-06 03:52:06,886 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 24 transitions, 69 flow [2022-12-06 03:52:06,886 INFO L188 LiptonReduction]: Number of co-enabled transitions 196 [2022-12-06 03:52:06,896 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 03:52:06,897 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-06 03:52:06,897 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 69 flow [2022-12-06 03:52:06,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-06 03:52:06,897 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 03:52:06,897 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 03:52:06,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 03:52:06,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 03:52:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 03:52:06,898 INFO L85 PathProgramCache]: Analyzing trace with hash 946169125, now seen corresponding path program 1 times [2022-12-06 03:52:06,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 03:52:06,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141555011] [2022-12-06 03:52:06,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 03:52:06,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 03:52:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 03:52:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 03:52:06,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 03:52:06,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141555011] [2022-12-06 03:52:06,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141555011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 03:52:06,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 03:52:06,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 03:52:06,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161565275] [2022-12-06 03:52:06,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 03:52:06,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 03:52:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 03:52:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 03:52:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 03:52:06,969 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2022-12-06 03:52:06,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-06 03:52:06,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 03:52:06,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2022-12-06 03:52:06,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 03:52:07,008 INFO L130 PetriNetUnfolder]: 68/174 cut-off events. [2022-12-06 03:52:07,009 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 03:52:07,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 174 events. 68/174 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 656 event pairs, 13 based on Foata normal form. 52/226 useless extension candidates. Maximal degree in co-relation 185. Up to 117 conditions per place. [2022-12-06 03:52:07,010 INFO L137 encePairwiseOnDemand]: 17/22 looper letters, 24 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2022-12-06 03:52:07,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 150 flow [2022-12-06 03:52:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 03:52:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 03:52:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-12-06 03:52:07,011 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2022-12-06 03:52:07,011 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 69 flow. Second operand 3 states and 40 transitions. [2022-12-06 03:52:07,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 150 flow [2022-12-06 03:52:07,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 147 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 03:52:07,012 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 76 flow [2022-12-06 03:52:07,012 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2022-12-06 03:52:07,013 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2022-12-06 03:52:07,013 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 03:52:07,013 INFO L89 Accepts]: Start accepts. Operand has 31 places, 24 transitions, 76 flow [2022-12-06 03:52:07,013 INFO L95 Accepts]: Finished accepts. [2022-12-06 03:52:07,014 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 03:52:07,014 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 24 transitions, 76 flow [2022-12-06 03:52:07,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 24 transitions, 76 flow [2022-12-06 03:52:07,017 INFO L130 PetriNetUnfolder]: 1/34 cut-off events. [2022-12-06 03:52:07,017 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 03:52:07,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 34 events. 1/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 47. Up to 8 conditions per place. [2022-12-06 03:52:07,018 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 24 transitions, 76 flow [2022-12-06 03:52:07,018 INFO L188 LiptonReduction]: Number of co-enabled transitions 146 [2022-12-06 03:52:07,365 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-06 03:52:07,366 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 353 [2022-12-06 03:52:07,366 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 64 flow [2022-12-06 03:52:07,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-06 03:52:07,367 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 03:52:07,367 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 03:52:07,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 03:52:07,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 03:52:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 03:52:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1467768690, now seen corresponding path program 1 times [2022-12-06 03:52:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 03:52:07,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847671949] [2022-12-06 03:52:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 03:52:07,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 03:52:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 03:52:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 03:52:07,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 03:52:07,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847671949] [2022-12-06 03:52:07,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847671949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 03:52:07,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 03:52:07,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 03:52:07,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024383030] [2022-12-06 03:52:07,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 03:52:07,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 03:52:07,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 03:52:07,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 03:52:07,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 03:52:07,408 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-06 03:52:07,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-06 03:52:07,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 03:52:07,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-06 03:52:07,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 03:52:07,436 INFO L130 PetriNetUnfolder]: 22/57 cut-off events. [2022-12-06 03:52:07,436 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-12-06 03:52:07,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 57 events. 22/57 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 125 event pairs, 2 based on Foata normal form. 6/63 useless extension candidates. Maximal degree in co-relation 96. Up to 29 conditions per place. [2022-12-06 03:52:07,437 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 21 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2022-12-06 03:52:07,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 142 flow [2022-12-06 03:52:07,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 03:52:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 03:52:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-06 03:52:07,438 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2022-12-06 03:52:07,438 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 64 flow. Second operand 4 states and 35 transitions. [2022-12-06 03:52:07,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 142 flow [2022-12-06 03:52:07,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 138 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-06 03:52:07,439 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 76 flow [2022-12-06 03:52:07,439 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2022-12-06 03:52:07,440 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2022-12-06 03:52:07,440 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 03:52:07,440 INFO L89 Accepts]: Start accepts. Operand has 29 places, 18 transitions, 76 flow [2022-12-06 03:52:07,440 INFO L95 Accepts]: Finished accepts. [2022-12-06 03:52:07,440 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 03:52:07,440 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 18 transitions, 76 flow [2022-12-06 03:52:07,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 76 flow [2022-12-06 03:52:07,442 INFO L130 PetriNetUnfolder]: 1/18 cut-off events. [2022-12-06 03:52:07,442 INFO L131 PetriNetUnfolder]: For 17/25 co-relation queries the response was YES. [2022-12-06 03:52:07,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 18 events. 1/18 cut-off events. For 17/25 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 27. Up to 6 conditions per place. [2022-12-06 03:52:07,443 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 18 transitions, 76 flow [2022-12-06 03:52:07,443 INFO L188 LiptonReduction]: Number of co-enabled transitions 68 [2022-12-06 03:52:07,443 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 03:52:07,444 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4 [2022-12-06 03:52:07,444 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 76 flow [2022-12-06 03:52:07,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-06 03:52:07,444 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 03:52:07,444 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 03:52:07,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 03:52:07,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 03:52:07,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 03:52:07,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1756382312, now seen corresponding path program 1 times [2022-12-06 03:52:07,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 03:52:07,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444585880] [2022-12-06 03:52:07,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 03:52:07,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 03:52:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 03:52:07,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 03:52:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 03:52:07,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 03:52:07,495 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 03:52:07,496 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 03:52:07,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-06 03:52:07,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 03:52:07,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 03:52:07,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 03:52:07,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 03:52:07,497 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-06 03:52:07,501 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 03:52:07,501 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 03:52:07,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 03:52:07 BasicIcfg [2022-12-06 03:52:07,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 03:52:07,517 INFO L158 Benchmark]: Toolchain (without parser) took 4660.09ms. Allocated memory was 189.8MB in the beginning and 246.4MB in the end (delta: 56.6MB). Free memory was 163.7MB in the beginning and 169.1MB in the end (delta: -5.4MB). Peak memory consumption was 52.2MB. Max. memory is 8.0GB. [2022-12-06 03:52:07,517 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory was 167.1MB in the beginning and 167.0MB in the end (delta: 85.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 03:52:07,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.61ms. Allocated memory is still 189.8MB. Free memory was 163.1MB in the beginning and 143.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 03:52:07,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.43ms. Allocated memory is still 189.8MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 03:52:07,518 INFO L158 Benchmark]: Boogie Preprocessor took 37.20ms. Allocated memory is still 189.8MB. Free memory was 141.6MB in the beginning and 140.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 03:52:07,518 INFO L158 Benchmark]: RCFGBuilder took 314.62ms. Allocated memory is still 189.8MB. Free memory was 140.1MB in the beginning and 126.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 03:52:07,518 INFO L158 Benchmark]: TraceAbstraction took 3868.63ms. Allocated memory was 189.8MB in the beginning and 246.4MB in the end (delta: 56.6MB). Free memory was 125.9MB in the beginning and 169.1MB in the end (delta: -43.2MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2022-12-06 03:52:07,519 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 189.8MB. Free memory was 167.1MB in the beginning and 167.0MB in the end (delta: 85.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 403.61ms. Allocated memory is still 189.8MB. Free memory was 163.1MB in the beginning and 143.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.43ms. Allocated memory is still 189.8MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.20ms. Allocated memory is still 189.8MB. Free memory was 141.6MB in the beginning and 140.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 314.62ms. Allocated memory is still 189.8MB. Free memory was 140.1MB in the beginning and 126.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3868.63ms. Allocated memory was 189.8MB in the beginning and 246.4MB in the end (delta: 56.6MB). Free memory was 125.9MB in the beginning and 169.1MB in the end (delta: -43.2MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 77 PlacesBefore, 32 PlacesAfterwards, 67 TransitionsBefore, 22 TransitionsAfterwards, 814 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 23 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 537, independent: 507, independent conditional: 507, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 537, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 537, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 537, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 452, independent conditional: 0, independent unconditional: 452, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 537, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 483, unknown conditional: 0, unknown unconditional: 483] , Statistics on independence cache: Total cache size (in pairs): 635, Positive cache size: 613, Positive conditional cache size: 0, Positive unconditional cache size: 613, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, 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, 30 PlacesBefore, 30 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 69, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 69, independent: 60, independent conditional: 4, independent unconditional: 56, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 69, independent: 60, independent conditional: 1, independent unconditional: 59, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 69, independent: 60, independent conditional: 1, independent unconditional: 59, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 41, independent: 36, independent conditional: 1, independent unconditional: 35, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 41, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 41, unknown conditional: 3, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 36, Positive conditional cache size: 1, Positive unconditional cache size: 35, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 31 PlacesBefore, 25 PlacesAfterwards, 24 TransitionsBefore, 18 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 61, independent: 61, independent conditional: 61, 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: 61, independent: 61, independent conditional: 24, independent unconditional: 37, 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: 61, independent: 61, independent conditional: 18, independent unconditional: 43, 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: 61, independent: 61, independent conditional: 18, independent unconditional: 43, 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: 30, independent: 30, independent conditional: 12, independent unconditional: 18, 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: 30, independent: 30, independent conditional: 0, independent unconditional: 30, 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: 61, independent: 31, independent conditional: 6, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 30, unknown conditional: 12, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 76, Positive conditional cache size: 13, Positive unconditional cache size: 63, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 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): 81, Positive cache size: 76, Positive conditional cache size: 13, Positive unconditional cache size: 63, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={3:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={5:0}, t3={7:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={5:0}, t3={7:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t3, 0, thread3, 0)=0, t1={6:0}, t2={5:0}, t3={7:0}] [L707] 1 data++ [L709] 1 return 0; [L714] 2 data+=2 [L716] 2 return 0; [L721] COND TRUE 3 data >= 3 [L722] 3 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 734]: 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. - UnprovableResult [Line: 733]: 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. - UnprovableResult [Line: 732]: 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 7 procedures, 119 locations, 5 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: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-06 03:52:07,534 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...