/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:41:27,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:41:27,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:41:27,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:41:27,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:41:27,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:41:27,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:41:27,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:41:27,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:41:27,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:41:27,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:41:27,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:41:27,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:41:27,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:41:27,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:41:27,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:41:27,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:41:27,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:41:27,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:41:27,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:41:27,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:41:27,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:41:27,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:41:27,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:41:27,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:41:27,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:41:27,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:41:27,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:41:27,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:41:27,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:41:27,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:41:27,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:41:27,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:41:27,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:41:27,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:41:27,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:41:27,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:41:27,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:41:27,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:41:27,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:41:27,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:41:27,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 03:41:27,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:41:27,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:41:27,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:41:27,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:41:27,538 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:41:27,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:41:27,539 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:41:27,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:41:27,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:41:27,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:41:27,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:41:27,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:41:27,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:41:27,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:41:27,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:41:27,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:41:27,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:41:27,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:41:27,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:41:27,809 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:41:27,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-13 03:41:28,763 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:41:28,958 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:41:28,958 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-13 03:41:28,974 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139074755/115b533d830f43aab7500b72f4f8b94e/FLAG2be5899f7 [2022-12-13 03:41:28,988 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139074755/115b533d830f43aab7500b72f4f8b94e [2022-12-13 03:41:28,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:41:28,992 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:41:28,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:41:28,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:41:28,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:41:28,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:28" (1/1) ... [2022-12-13 03:41:28,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b55662d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:28, skipping insertion in model container [2022-12-13 03:41:28,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:28" (1/1) ... [2022-12-13 03:41:29,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:41:29,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:41:29,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-13 03:41:29,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:41:29,330 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:41:29,366 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-13 03:41:29,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:41:29,403 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:41:29,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29 WrapperNode [2022-12-13 03:41:29,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:41:29,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:41:29,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:41:29,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:41:29,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,445 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-13 03:41:29,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:41:29,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:41:29,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:41:29,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:41:29,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,463 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:41:29,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:41:29,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:41:29,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:41:29,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (1/1) ... [2022-12-13 03:41:29,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:41:29,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:41:29,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 03:41:29,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 03:41:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 03:41:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:41:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:41:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:41:29,521 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:41:29,649 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:41:29,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:41:29,837 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:41:29,842 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:41:29,842 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 03:41:29,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:29 BoogieIcfgContainer [2022-12-13 03:41:29,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:41:29,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:41:29,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:41:29,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:41:29,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:41:28" (1/3) ... [2022-12-13 03:41:29,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6187de46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:29, skipping insertion in model container [2022-12-13 03:41:29,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:29" (2/3) ... [2022-12-13 03:41:29,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6187de46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:29, skipping insertion in model container [2022-12-13 03:41:29,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:29" (3/3) ... [2022-12-13 03:41:29,850 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-13 03:41:29,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:41:29,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:41:29,863 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:41:29,934 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 03:41:29,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 216 flow [2022-12-13 03:41:30,021 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2022-12-13 03:41:30,022 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 03:41:30,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 9/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2022-12-13 03:41:30,026 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 216 flow [2022-12-13 03:41:30,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 94 transitions, 191 flow [2022-12-13 03:41:30,031 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:30,049 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 94 transitions, 191 flow [2022-12-13 03:41:30,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 94 transitions, 191 flow [2022-12-13 03:41:30,083 INFO L130 PetriNetUnfolder]: 9/94 cut-off events. [2022-12-13 03:41:30,083 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:41:30,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 9/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2022-12-13 03:41:30,088 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 94 transitions, 191 flow [2022-12-13 03:41:30,088 INFO L226 LiptonReduction]: Number of co-enabled transitions 1452 [2022-12-13 03:41:34,118 INFO L241 LiptonReduction]: Total number of compositions: 74 [2022-12-13 03:41:34,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:41:34,150 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;@2d5eee84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:41:34,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 03:41:34,155 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2022-12-13 03:41:34,155 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:41:34,155 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:41:34,156 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 03:41:34,156 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:41:34,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:41:34,159 INFO L85 PathProgramCache]: Analyzing trace with hash 379840527, now seen corresponding path program 1 times [2022-12-13 03:41:34,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:41:34,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495616044] [2022-12-13 03:41:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:41:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:41:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:41:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:41:34,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:41:34,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495616044] [2022-12-13 03:41:34,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495616044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:41:34,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:41:34,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:41:34,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679914354] [2022-12-13 03:41:34,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:41:34,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:41:34,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:41:34,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:41:34,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:41:34,476 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 48 [2022-12-13 03:41:34,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 48 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:34,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:41:34,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 48 [2022-12-13 03:41:34,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:41:34,614 INFO L130 PetriNetUnfolder]: 130/364 cut-off events. [2022-12-13 03:41:34,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:41:34,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 364 events. 130/364 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2054 event pairs, 41 based on Foata normal form. 6/259 useless extension candidates. Maximal degree in co-relation 673. Up to 175 conditions per place. [2022-12-13 03:41:34,616 INFO L137 encePairwiseOnDemand]: 27/48 looper letters, 19 selfloop transitions, 4 changer transitions 23/52 dead transitions. [2022-12-13 03:41:34,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 195 flow [2022-12-13 03:41:34,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:41:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:41:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2022-12-13 03:41:34,624 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2022-12-13 03:41:34,627 INFO L295 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2022-12-13 03:41:34,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 52 transitions, 195 flow [2022-12-13 03:41:34,628 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 29 transitions, 107 flow [2022-12-13 03:41:34,631 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:41:34,632 INFO L89 Accepts]: Start accepts. Operand has 33 places, 29 transitions, 107 flow [2022-12-13 03:41:34,634 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:41:34,634 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:34,634 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 29 transitions, 107 flow [2022-12-13 03:41:34,637 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 29 transitions, 107 flow [2022-12-13 03:41:34,637 INFO L226 LiptonReduction]: Number of co-enabled transitions 32 [2022-12-13 03:41:34,848 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 03:41:34,850 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 218 [2022-12-13 03:41:34,850 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 103 flow [2022-12-13 03:41:34,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:34,850 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:41:34,850 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:41:34,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:41:34,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:41:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:41:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1324440707, now seen corresponding path program 1 times [2022-12-13 03:41:34,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:41:34,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343915721] [2022-12-13 03:41:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:41:34,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:41:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:41:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:41:34,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:41:34,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343915721] [2022-12-13 03:41:34,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343915721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:41:34,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:41:34,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:41:34,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280641161] [2022-12-13 03:41:34,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:41:34,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:41:34,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:41:34,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:41:34,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:41:34,984 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 26 [2022-12-13 03:41:34,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:34,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:41:34,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 26 [2022-12-13 03:41:34,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:41:35,056 INFO L130 PetriNetUnfolder]: 23/85 cut-off events. [2022-12-13 03:41:35,056 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 03:41:35,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 85 events. 23/85 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 330 event pairs, 0 based on Foata normal form. 8/67 useless extension candidates. Maximal degree in co-relation 237. Up to 72 conditions per place. [2022-12-13 03:41:35,057 INFO L137 encePairwiseOnDemand]: 17/26 looper letters, 23 selfloop transitions, 9 changer transitions 5/38 dead transitions. [2022-12-13 03:41:35,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 38 transitions, 217 flow [2022-12-13 03:41:35,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:41:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:41:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2022-12-13 03:41:35,059 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2022-12-13 03:41:35,060 INFO L295 CegarLoopForPetriNet]: 40 programPoint places, -7 predicate places. [2022-12-13 03:41:35,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 38 transitions, 217 flow [2022-12-13 03:41:35,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 33 transitions, 191 flow [2022-12-13 03:41:35,061 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:41:35,062 INFO L89 Accepts]: Start accepts. Operand has 29 places, 33 transitions, 191 flow [2022-12-13 03:41:35,062 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:41:35,062 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:35,062 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 33 transitions, 191 flow [2022-12-13 03:41:35,063 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 33 transitions, 191 flow [2022-12-13 03:41:35,063 INFO L226 LiptonReduction]: Number of co-enabled transitions 6 [2022-12-13 03:41:35,992 INFO L241 LiptonReduction]: Total number of compositions: 4 [2022-12-13 03:41:35,993 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 932 [2022-12-13 03:41:35,993 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 30 transitions, 175 flow [2022-12-13 03:41:35,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:35,993 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:41:35,993 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 03:41:35,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:41:35,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:41:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:41:35,994 INFO L85 PathProgramCache]: Analyzing trace with hash 379866255, now seen corresponding path program 1 times [2022-12-13 03:41:35,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:41:35,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205806802] [2022-12-13 03:41:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:41:35,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:41:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:41:36,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:41:36,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:41:36,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205806802] [2022-12-13 03:41:36,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205806802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:41:36,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:41:36,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:41:36,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755783639] [2022-12-13 03:41:36,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:41:36,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:41:36,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:41:36,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:41:36,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:41:36,101 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-13 03:41:36,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 30 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:36,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:41:36,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-13 03:41:36,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:41:36,136 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-13 03:41:36,136 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 03:41:36,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 52 event pairs, 0 based on Foata normal form. 10/23 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2022-12-13 03:41:36,137 INFO L137 encePairwiseOnDemand]: 11/24 looper letters, 3 selfloop transitions, 6 changer transitions 9/18 dead transitions. [2022-12-13 03:41:36,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 139 flow [2022-12-13 03:41:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:41:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:41:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 03:41:36,138 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.22916666666666666 [2022-12-13 03:41:36,139 INFO L295 CegarLoopForPetriNet]: 40 programPoint places, -11 predicate places. [2022-12-13 03:41:36,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 18 transitions, 139 flow [2022-12-13 03:41:36,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 9 transitions, 75 flow [2022-12-13 03:41:36,140 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:41:36,140 INFO L89 Accepts]: Start accepts. Operand has 20 places, 9 transitions, 75 flow [2022-12-13 03:41:36,142 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:41:36,142 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:36,143 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 9 transitions, 75 flow [2022-12-13 03:41:36,143 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 9 transitions, 75 flow [2022-12-13 03:41:36,143 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 03:41:36,493 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 03:41:36,494 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 354 [2022-12-13 03:41:36,494 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 6 transitions, 51 flow [2022-12-13 03:41:36,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:36,494 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:41:36,494 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 03:41:36,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:41:36,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:41:36,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:41:36,495 INFO L85 PathProgramCache]: Analyzing trace with hash 12254145, now seen corresponding path program 1 times [2022-12-13 03:41:36,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:41:36,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993911004] [2022-12-13 03:41:36,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:41:36,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:41:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:41:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:41:36,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:41:36,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993911004] [2022-12-13 03:41:36,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993911004] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:41:36,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:41:36,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:41:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343905482] [2022-12-13 03:41:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:41:36,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:41:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:41:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:41:36,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:41:36,660 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 6 [2022-12-13 03:41:36,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 6 transitions, 51 flow. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:36,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:41:36,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 6 [2022-12-13 03:41:36,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:41:36,670 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 03:41:36,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:41:36,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 3 event pairs, 0 based on Foata normal form. 3/6 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-12-13 03:41:36,671 INFO L137 encePairwiseOnDemand]: 3/6 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2022-12-13 03:41:36,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 5 transitions, 53 flow [2022-12-13 03:41:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:41:36,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:41:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-12-13 03:41:36,671 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-13 03:41:36,672 INFO L295 CegarLoopForPetriNet]: 40 programPoint places, -23 predicate places. [2022-12-13 03:41:36,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 5 transitions, 53 flow [2022-12-13 03:41:36,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-13 03:41:36,672 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:36,672 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:41:36,673 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:41:36,673 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 03:41:36,673 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:41:36,674 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 03:41:36,674 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 03:41:36,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:41:36,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 03:41:36,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 03:41:36,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:41:36,677 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 03:41:36,678 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:41:36,679 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:41:36,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:41:36 BasicIcfg [2022-12-13 03:41:36,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:41:36,682 INFO L158 Benchmark]: Toolchain (without parser) took 7690.08ms. Allocated memory was 172.0MB in the beginning and 254.8MB in the end (delta: 82.8MB). Free memory was 147.0MB in the beginning and 171.2MB in the end (delta: -24.2MB). Peak memory consumption was 59.7MB. Max. memory is 8.0GB. [2022-12-13 03:41:36,682 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:41:36,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.41ms. Allocated memory is still 172.0MB. Free memory was 147.0MB in the beginning and 127.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-13 03:41:36,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.33ms. Allocated memory is still 172.0MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:41:36,683 INFO L158 Benchmark]: Boogie Preprocessor took 19.64ms. Allocated memory is still 172.0MB. Free memory was 125.0MB in the beginning and 123.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:41:36,683 INFO L158 Benchmark]: RCFGBuilder took 377.77ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 108.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 03:41:36,683 INFO L158 Benchmark]: TraceAbstraction took 6835.77ms. Allocated memory was 172.0MB in the beginning and 254.8MB in the end (delta: 82.8MB). Free memory was 107.7MB in the beginning and 171.2MB in the end (delta: -63.5MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. [2022-12-13 03:41:36,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 411.41ms. Allocated memory is still 172.0MB. Free memory was 147.0MB in the beginning and 127.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.33ms. Allocated memory is still 172.0MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.64ms. Allocated memory is still 172.0MB. Free memory was 125.0MB in the beginning and 123.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 377.77ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 108.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 6835.77ms. Allocated memory was 172.0MB in the beginning and 254.8MB in the end (delta: 82.8MB). Free memory was 107.7MB in the beginning and 171.2MB in the end (delta: -63.5MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 89 PlacesBefore, 40 PlacesAfterwards, 94 TransitionsBefore, 48 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 30 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1900, independent: 1788, independent conditional: 1788, independent unconditional: 0, dependent: 112, dependent conditional: 112, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1900, independent: 1788, independent conditional: 0, independent unconditional: 1788, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1900, independent: 1788, independent conditional: 0, independent unconditional: 1788, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1900, independent: 1788, independent conditional: 0, independent unconditional: 1788, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1322, independent: 1282, independent conditional: 0, independent unconditional: 1282, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1322, independent: 1192, independent conditional: 0, independent unconditional: 1192, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 130, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 156, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1900, independent: 506, independent conditional: 0, independent unconditional: 506, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 1322, unknown conditional: 0, unknown unconditional: 1322] , Statistics on independence cache: Total cache size (in pairs): 2240, Positive cache size: 2200, Positive conditional cache size: 0, Positive unconditional cache size: 2200, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, 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: 0.2s, 33 PlacesBefore, 31 PlacesAfterwards, 29 TransitionsBefore, 27 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18, independent: 17, independent conditional: 4, independent unconditional: 13, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 29 PlacesBefore, 26 PlacesAfterwards, 33 TransitionsBefore, 30 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 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): 9, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 20 PlacesBefore, 17 PlacesAfterwards, 9 TransitionsBefore, 6 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 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): 10, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 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): 10, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 691]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 125 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 1 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 03:41:36,711 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...