/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-RepeatedSemanticLbeWithDisjunctivePredicates.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 06:01:24,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 06:01:24,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 06:01:24,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 06:01:24,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 06:01:24,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 06:01:24,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 06:01:24,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 06:01:24,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 06:01:24,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 06:01:24,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 06:01:24,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 06:01:24,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 06:01:24,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 06:01:24,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 06:01:24,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 06:01:24,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 06:01:24,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 06:01:24,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 06:01:24,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 06:01:24,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 06:01:24,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 06:01:24,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 06:01:24,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 06:01:24,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 06:01:24,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 06:01:24,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 06:01:24,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 06:01:24,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 06:01:24,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 06:01:24,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 06:01:24,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 06:01:24,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 06:01:24,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 06:01:24,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 06:01:24,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 06:01:24,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 06:01:24,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 06:01:24,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 06:01:24,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 06:01:24,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 06:01:24,370 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 06:01:24,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 06:01:24,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 06:01:24,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 06:01:24,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 06:01:24,423 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 06:01:24,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 06:01:24,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 06:01:24,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 06:01:24,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 06:01:24,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 06:01:24,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 06:01:24,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 06:01:24,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 06:01:24,436 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 06:01:24,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 06:01:24,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 06:01:24,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 06:01:24,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 06:01:24,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 06:01:24,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 06:01:24,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 06:01:24,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:01:24,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 06:01:24,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 06:01:24,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 06:01:24,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 06:01:24,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 06:01:24,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 06:01:24,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 06:01:24,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 06:01:25,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 06:01:25,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 06:01:25,003 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 06:01:25,003 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 06:01:25,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2022-12-06 06:01:26,494 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 06:01:26,808 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 06:01:26,809 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2022-12-06 06:01:26,833 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb92f267/39201454a7ab4426a21d9a17664d06e4/FLAGb67058cbf [2022-12-06 06:01:26,868 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb92f267/39201454a7ab4426a21d9a17664d06e4 [2022-12-06 06:01:26,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 06:01:26,875 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 06:01:26,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 06:01:26,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 06:01:26,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 06:01:26,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:01:26" (1/1) ... [2022-12-06 06:01:26,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f7d830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:26, skipping insertion in model container [2022-12-06 06:01:26,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:01:26" (1/1) ... [2022-12-06 06:01:26,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 06:01:26,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 06:01:27,147 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 06:01:27,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:01:27,161 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 06:01:27,185 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 06:01:27,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:01:27,211 INFO L208 MainTranslator]: Completed translation [2022-12-06 06:01:27,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27 WrapperNode [2022-12-06 06:01:27,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 06:01:27,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 06:01:27,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 06:01:27,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 06:01:27,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,240 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-12-06 06:01:27,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 06:01:27,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 06:01:27,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 06:01:27,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 06:01:27,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,254 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 06:01:27,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 06:01:27,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 06:01:27,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 06:01:27,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (1/1) ... [2022-12-06 06:01:27,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:01:27,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 06:01:27,280 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 06:01:27,297 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 06:01:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 06:01:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 06:01:27,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 06:01:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 06:01:27,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 06:01:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 06:01:27,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 06:01:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 06:01:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 06:01:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 06:01:27,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 06:01:27,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 06:01:27,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 06:01:27,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 06:01:27,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 06:01:27,310 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 06:01:27,410 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 06:01:27,411 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 06:01:27,595 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 06:01:27,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 06:01:27,601 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 06:01:27,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:01:27 BoogieIcfgContainer [2022-12-06 06:01:27,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 06:01:27,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 06:01:27,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 06:01:27,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 06:01:27,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:01:26" (1/3) ... [2022-12-06 06:01:27,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf54d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:01:27, skipping insertion in model container [2022-12-06 06:01:27,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:01:27" (2/3) ... [2022-12-06 06:01:27,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf54d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:01:27, skipping insertion in model container [2022-12-06 06:01:27,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:01:27" (3/3) ... [2022-12-06 06:01:27,609 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2022-12-06 06:01:27,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 06:01:27,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 06:01:27,623 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 06:01:27,703 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 06:01:27,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 87 transitions, 198 flow [2022-12-06 06:01:27,790 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-12-06 06:01:27,791 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 06:01:27,794 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 06:01:27,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 87 transitions, 198 flow [2022-12-06 06:01:27,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 149 flow [2022-12-06 06:01:27,801 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:01:27,824 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 67 transitions, 149 flow [2022-12-06 06:01:27,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 67 transitions, 149 flow [2022-12-06 06:01:27,853 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-12-06 06:01:27,854 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 06:01:27,854 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 06:01:27,856 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 67 transitions, 149 flow [2022-12-06 06:01:27,856 INFO L188 LiptonReduction]: Number of co-enabled transitions 814 [2022-12-06 06:01:29,930 INFO L203 LiptonReduction]: Total number of compositions: 47 [2022-12-06 06:01:29,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 06:01:29,968 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;@77597157, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 06:01:29,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 06:01:29,974 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-06 06:01:29,975 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:01:29,975 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:01:29,975 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:01:29,976 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 06:01:29,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:01:29,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1467362048, now seen corresponding path program 1 times [2022-12-06 06:01:30,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:01:30,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210899563] [2022-12-06 06:01:30,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:01:30,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:01:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:01:30,385 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 06:01:30,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:01:30,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210899563] [2022-12-06 06:01:30,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210899563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:01:30,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:01:30,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 06:01:30,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477394000] [2022-12-06 06:01:30,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:01:30,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:01:30,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:01:30,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:01:30,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:01:30,441 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 22 [2022-12-06 06:01:30,442 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 06:01:30,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:01:30,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 22 [2022-12-06 06:01:30,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:01:30,590 INFO L130 PetriNetUnfolder]: 285/477 cut-off events. [2022-12-06 06:01:30,590 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-06 06:01:30,592 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 06:01:30,604 INFO L137 encePairwiseOnDemand]: 18/22 looper letters, 28 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2022-12-06 06:01:30,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 149 flow [2022-12-06 06:01:30,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:01:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:01:30,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-12-06 06:01:30,628 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2022-12-06 06:01:30,629 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 59 flow. Second operand 3 states and 38 transitions. [2022-12-06 06:01:30,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 149 flow [2022-12-06 06:01:30,632 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 06:01:30,633 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 69 flow [2022-12-06 06:01:30,634 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 06:01:30,636 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2022-12-06 06:01:30,636 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:01:30,637 INFO L89 Accepts]: Start accepts. Operand has 30 places, 24 transitions, 69 flow [2022-12-06 06:01:30,638 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:01:30,639 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:01:30,639 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 24 transitions, 69 flow [2022-12-06 06:01:30,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 24 transitions, 69 flow [2022-12-06 06:01:30,643 INFO L130 PetriNetUnfolder]: 3/32 cut-off events. [2022-12-06 06:01:30,643 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:01:30,651 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 06:01:30,652 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 24 transitions, 69 flow [2022-12-06 06:01:30,652 INFO L188 LiptonReduction]: Number of co-enabled transitions 196 [2022-12-06 06:01:30,693 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:01:30,694 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 58 [2022-12-06 06:01:30,694 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 69 flow [2022-12-06 06:01:30,695 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 06:01:30,695 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:01:30,695 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:01:30,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 06:01:30,695 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 06:01:30,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:01:30,695 INFO L85 PathProgramCache]: Analyzing trace with hash 946169125, now seen corresponding path program 1 times [2022-12-06 06:01:30,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:01:30,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016733687] [2022-12-06 06:01:30,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:01:30,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:01:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:01:30,911 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 06:01:30,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:01:30,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016733687] [2022-12-06 06:01:30,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016733687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:01:30,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:01:30,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 06:01:30,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459707032] [2022-12-06 06:01:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:01:30,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:01:30,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:01:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:01:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:01:30,916 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2022-12-06 06:01:30,916 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 06:01:30,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:01:30,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2022-12-06 06:01:30,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:01:30,992 INFO L130 PetriNetUnfolder]: 68/174 cut-off events. [2022-12-06 06:01:30,993 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 06:01:30,993 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 06:01:30,994 INFO L137 encePairwiseOnDemand]: 17/22 looper letters, 24 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2022-12-06 06:01:30,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 150 flow [2022-12-06 06:01:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:01:30,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:01:30,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-12-06 06:01:30,997 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2022-12-06 06:01:30,997 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 69 flow. Second operand 3 states and 40 transitions. [2022-12-06 06:01:30,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 150 flow [2022-12-06 06:01:30,998 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 06:01:30,998 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 76 flow [2022-12-06 06:01:30,998 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 06:01:30,999 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2022-12-06 06:01:30,999 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:01:30,999 INFO L89 Accepts]: Start accepts. Operand has 31 places, 24 transitions, 76 flow [2022-12-06 06:01:31,000 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:01:31,000 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:01:31,000 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 24 transitions, 76 flow [2022-12-06 06:01:31,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 24 transitions, 76 flow [2022-12-06 06:01:31,003 INFO L130 PetriNetUnfolder]: 1/34 cut-off events. [2022-12-06 06:01:31,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:01:31,005 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 06:01:31,006 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 24 transitions, 76 flow [2022-12-06 06:01:31,006 INFO L188 LiptonReduction]: Number of co-enabled transitions 146 [2022-12-06 06:01:31,250 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-06 06:01:31,251 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 252 [2022-12-06 06:01:31,251 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 64 flow [2022-12-06 06:01:31,251 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 06:01:31,251 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:01:31,251 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:01:31,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 06:01:31,252 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 06:01:31,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:01:31,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1467768690, now seen corresponding path program 1 times [2022-12-06 06:01:31,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:01:31,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892348230] [2022-12-06 06:01:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:01:31,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:01:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:01:31,335 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 06:01:31,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:01:31,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892348230] [2022-12-06 06:01:31,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892348230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:01:31,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:01:31,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:01:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278580237] [2022-12-06 06:01:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:01:31,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:01:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:01:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:01:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:01:31,337 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-06 06:01:31,337 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 06:01:31,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:01:31,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-06 06:01:31,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:01:31,370 INFO L130 PetriNetUnfolder]: 22/57 cut-off events. [2022-12-06 06:01:31,370 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-12-06 06:01:31,370 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 06:01:31,371 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 21 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2022-12-06 06:01:31,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 142 flow [2022-12-06 06:01:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 06:01:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 06:01:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-06 06:01:31,389 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2022-12-06 06:01:31,389 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 64 flow. Second operand 4 states and 35 transitions. [2022-12-06 06:01:31,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 142 flow [2022-12-06 06:01:31,390 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 06:01:31,390 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 76 flow [2022-12-06 06:01:31,391 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 06:01:31,392 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2022-12-06 06:01:31,392 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:01:31,392 INFO L89 Accepts]: Start accepts. Operand has 29 places, 18 transitions, 76 flow [2022-12-06 06:01:31,393 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:01:31,393 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:01:31,393 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 18 transitions, 76 flow [2022-12-06 06:01:31,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 76 flow [2022-12-06 06:01:31,398 INFO L130 PetriNetUnfolder]: 1/18 cut-off events. [2022-12-06 06:01:31,398 INFO L131 PetriNetUnfolder]: For 17/25 co-relation queries the response was YES. [2022-12-06 06:01:31,399 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 06:01:31,399 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 18 transitions, 76 flow [2022-12-06 06:01:31,399 INFO L188 LiptonReduction]: Number of co-enabled transitions 68 [2022-12-06 06:01:31,401 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:01:31,402 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 06:01:31,402 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 76 flow [2022-12-06 06:01:31,402 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 06:01:31,403 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:01:31,403 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:01:31,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 06:01:31,403 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 06:01:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:01:31,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1756382312, now seen corresponding path program 1 times [2022-12-06 06:01:31,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:01:31,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419308383] [2022-12-06 06:01:31,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:01:31,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:01:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 06:01:31,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 06:01:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 06:01:31,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 06:01:31,532 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 06:01:31,533 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 06:01:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-06 06:01:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 06:01:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 06:01:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 06:01:31,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 06:01:31,536 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-06 06:01:31,541 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 06:01:31,541 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 06:01:31,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:01:31 BasicIcfg [2022-12-06 06:01:31,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 06:01:31,599 INFO L158 Benchmark]: Toolchain (without parser) took 4724.12ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 152.8MB in the beginning and 106.5MB in the end (delta: 46.3MB). Peak memory consumption was 83.0MB. Max. memory is 8.0GB. [2022-12-06 06:01:31,602 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:01:31,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.73ms. Allocated memory is still 178.3MB. Free memory was 152.3MB in the beginning and 132.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 06:01:31,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.11ms. Allocated memory is still 178.3MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 06:01:31,606 INFO L158 Benchmark]: Boogie Preprocessor took 14.72ms. Allocated memory is still 178.3MB. Free memory was 130.8MB in the beginning and 129.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 06:01:31,607 INFO L158 Benchmark]: RCFGBuilder took 346.75ms. Allocated memory is still 178.3MB. Free memory was 129.7MB in the beginning and 115.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 06:01:31,607 INFO L158 Benchmark]: TraceAbstraction took 3994.03ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 115.0MB in the beginning and 106.5MB in the end (delta: 8.5MB). Peak memory consumption was 45.3MB. Max. memory is 8.0GB. [2022-12-06 06:01:31,608 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 178.3MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 335.73ms. Allocated memory is still 178.3MB. Free memory was 152.3MB in the beginning and 132.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.11ms. Allocated memory is still 178.3MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.72ms. Allocated memory is still 178.3MB. Free memory was 130.8MB in the beginning and 129.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 346.75ms. Allocated memory is still 178.3MB. Free memory was 129.7MB in the beginning and 115.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3994.03ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 115.0MB in the beginning and 106.5MB in the end (delta: 8.5MB). Peak memory consumption was 45.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 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: 59, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 52, dependent conditional: 0, dependent unconditional: 52, 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: 39, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 26, dependent conditional: 2, dependent unconditional: 24, 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: 0.2s, 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: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, 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, 0.4s 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 06:01:31,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...