/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/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 12:28:55,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:28:55,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:28:55,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:28:55,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:28:55,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:28:55,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:28:55,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:28:55,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:28:55,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:28:55,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:28:55,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:28:55,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:28:55,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:28:55,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:28:55,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:28:55,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:28:55,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:28:55,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:28:55,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:28:55,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:28:55,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:28:55,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:28:55,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:28:55,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:28:55,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:28:55,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:28:55,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:28:55,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:28:55,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:28:55,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:28:55,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:28:55,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:28:55,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:28:55,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:28:55,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:28:55,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:28:55,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:28:55,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:28:55,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:28:55,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:28:55,534 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 [2022-12-13 12:28:55,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:28:55,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:28:55,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:28:55,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:28:55,561 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:28:55,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:28:55,561 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:28:55,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:28:55,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:28:55,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:28:55,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:28:55,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:28:55,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 12:28:55,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:28:55,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:28:55,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:28:55,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:28:55,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:28:55,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:28:55,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:28:55,564 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 12:28:55,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 12:28:55,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:28:55,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:28:55,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:28:55,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:28:55,857 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:28:55,857 INFO L432 ainManager$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 12:28:56,756 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:28:56,940 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:28:56,941 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-13 12:28:56,950 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21b2fd33/b26c35a60a6348c6ba1e7306166e4558/FLAGcf533d7b5 [2022-12-13 12:28:56,965 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21b2fd33/b26c35a60a6348c6ba1e7306166e4558 [2022-12-13 12:28:56,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:28:56,967 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 12:28:56,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:28:56,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:28:56,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:28:56,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:28:56" (1/1) ... [2022-12-13 12:28:56,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb18271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:56, skipping insertion in model container [2022-12-13 12:28:56,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:28:56" (1/1) ... [2022-12-13 12:28:56,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:28:57,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:28:57,177 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 12:28:57,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:28:57,208 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:28:57,246 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 12:28:57,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:28:57,284 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:28:57,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57 WrapperNode [2022-12-13 12:28:57,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:28:57,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:28:57,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:28:57,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:28:57,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,334 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-13 12:28:57,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:28:57,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:28:57,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:28:57,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:28:57,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,357 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:28:57,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:28:57,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:28:57,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:28:57,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (1/1) ... [2022-12-13 12:28:57,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:28:57,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 12:28:57,388 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 12:28:57,407 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 12:28:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:28:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:28:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 12:28:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:28:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:28:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 12:28:57,431 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 12:28:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:28:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:28:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:28:57,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:28:57,432 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 12:28:57,554 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 12:28:57,555 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:28:57,715 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 12:28:57,720 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:28:57,720 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 12:28:57,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:28:57 BoogieIcfgContainer [2022-12-13 12:28:57,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:28:57,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:28:57,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:28:57,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:28:57,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:28:56" (1/3) ... [2022-12-13 12:28:57,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f4667a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:28:57, skipping insertion in model container [2022-12-13 12:28:57,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:28:57" (2/3) ... [2022-12-13 12:28:57,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f4667a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:28:57, skipping insertion in model container [2022-12-13 12:28:57,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:28:57" (3/3) ... [2022-12-13 12:28:57,727 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-13 12:28:57,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:28:57,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:28:57,740 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:28:57,808 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 12:28:57,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 216 flow [2022-12-13 12:28:57,889 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2022-12-13 12:28:57,889 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 12:28:57,894 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 12:28:57,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 216 flow [2022-12-13 12:28:57,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 94 transitions, 191 flow [2022-12-13 12:28:57,899 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:28:57,919 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 94 transitions, 191 flow [2022-12-13 12:28:57,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 94 transitions, 191 flow [2022-12-13 12:28:57,958 INFO L130 PetriNetUnfolder]: 9/94 cut-off events. [2022-12-13 12:28:57,958 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:28:57,960 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 12:28:57,962 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 94 transitions, 191 flow [2022-12-13 12:28:57,962 INFO L226 LiptonReduction]: Number of co-enabled transitions 1452 [2022-12-13 12:29:01,926 INFO L241 LiptonReduction]: Total number of compositions: 74 [2022-12-13 12:29:01,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:29:01,940 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;@591330ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 12:29:01,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:29:01,943 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2022-12-13 12:29:01,943 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:01,944 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:01,944 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:29:01,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 12:29:01,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:01,947 INFO L85 PathProgramCache]: Analyzing trace with hash 379840527, now seen corresponding path program 1 times [2022-12-13 12:29:01,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:01,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054806229] [2022-12-13 12:29:01,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:01,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:02,236 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 12:29:02,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:02,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054806229] [2022-12-13 12:29:02,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054806229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:02,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:02,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:29:02,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890384250] [2022-12-13 12:29:02,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:02,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:29:02,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:02,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:29:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:29:02,257 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 48 [2022-12-13 12:29:02,257 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 12:29:02,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:02,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 48 [2022-12-13 12:29:02,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:02,340 INFO L130 PetriNetUnfolder]: 130/364 cut-off events. [2022-12-13 12:29:02,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:02,341 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 12:29:02,342 INFO L137 encePairwiseOnDemand]: 27/48 looper letters, 19 selfloop transitions, 4 changer transitions 23/52 dead transitions. [2022-12-13 12:29:02,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 195 flow [2022-12-13 12:29:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:29:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:29:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2022-12-13 12:29:02,352 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2022-12-13 12:29:02,353 INFO L175 Difference]: Start difference. First operand has 40 places, 48 transitions, 99 flow. Second operand 3 states and 87 transitions. [2022-12-13 12:29:02,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 195 flow [2022-12-13 12:29:02,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:29:02,357 INFO L231 Difference]: Finished difference. Result has 42 places, 27 transitions, 76 flow [2022-12-13 12:29:02,358 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=42, PETRI_TRANSITIONS=27} [2022-12-13 12:29:02,362 INFO L295 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2022-12-13 12:29:02,362 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:02,363 INFO L89 Accepts]: Start accepts. Operand has 42 places, 27 transitions, 76 flow [2022-12-13 12:29:02,364 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:02,365 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:02,365 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 27 transitions, 76 flow [2022-12-13 12:29:02,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 27 transitions, 76 flow [2022-12-13 12:29:02,376 INFO L130 PetriNetUnfolder]: 3/35 cut-off events. [2022-12-13 12:29:02,376 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:02,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 101 event pairs, 3 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 51. Up to 16 conditions per place. [2022-12-13 12:29:02,378 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 27 transitions, 76 flow [2022-12-13 12:29:02,379 INFO L226 LiptonReduction]: Number of co-enabled transitions 112 [2022-12-13 12:29:03,214 INFO L241 LiptonReduction]: Total number of compositions: 7 [2022-12-13 12:29:03,216 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 854 [2022-12-13 12:29:03,216 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 71 flow [2022-12-13 12:29:03,216 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 12:29:03,216 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:03,216 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:29:03,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:29:03,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 12:29:03,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:03,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1109843963, now seen corresponding path program 1 times [2022-12-13 12:29:03,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:03,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465726150] [2022-12-13 12:29:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:03,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:03,331 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 12:29:03,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:03,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465726150] [2022-12-13 12:29:03,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465726150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:03,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:03,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:29:03,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337437762] [2022-12-13 12:29:03,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:03,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:29:03,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:03,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:29:03,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:29:03,333 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 23 [2022-12-13 12:29:03,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 12:29:03,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:03,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 23 [2022-12-13 12:29:03,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:03,371 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-12-13 12:29:03,371 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:29:03,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 31 events. 0/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 94 event pairs, 0 based on Foata normal form. 19/37 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2022-12-13 12:29:03,372 INFO L137 encePairwiseOnDemand]: 11/23 looper letters, 4 selfloop transitions, 6 changer transitions 13/23 dead transitions. [2022-12-13 12:29:03,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 117 flow [2022-12-13 12:29:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:29:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:29:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2022-12-13 12:29:03,373 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.33695652173913043 [2022-12-13 12:29:03,373 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 71 flow. Second operand 4 states and 31 transitions. [2022-12-13 12:29:03,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 117 flow [2022-12-13 12:29:03,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 103 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:29:03,374 INFO L231 Difference]: Finished difference. Result has 30 places, 10 transitions, 38 flow [2022-12-13 12:29:03,374 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=38, PETRI_PLACES=30, PETRI_TRANSITIONS=10} [2022-12-13 12:29:03,374 INFO L295 CegarLoopForPetriNet]: 40 programPoint places, -10 predicate places. [2022-12-13 12:29:03,374 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:03,374 INFO L89 Accepts]: Start accepts. Operand has 30 places, 10 transitions, 38 flow [2022-12-13 12:29:03,375 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:03,375 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:03,375 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 10 transitions, 38 flow [2022-12-13 12:29:03,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 10 transitions, 38 flow [2022-12-13 12:29:03,377 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-13 12:29:03,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:03,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-13 12:29:03,378 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 10 transitions, 38 flow [2022-12-13 12:29:03,378 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 12:29:03,673 INFO L241 LiptonReduction]: Total number of compositions: 4 [2022-12-13 12:29:03,675 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 301 [2022-12-13 12:29:03,675 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 6 transitions, 30 flow [2022-12-13 12:29:03,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 12:29:03,675 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:03,675 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 12:29:03,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:29:03,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 12:29:03,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:03,676 INFO L85 PathProgramCache]: Analyzing trace with hash 12253957, now seen corresponding path program 1 times [2022-12-13 12:29:03,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:03,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286243374] [2022-12-13 12:29:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:03,793 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 12:29:03,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:03,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286243374] [2022-12-13 12:29:03,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286243374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:03,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:03,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:29:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247263201] [2022-12-13 12:29:03,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:03,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:29:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:29:03,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:29:03,794 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 6 [2022-12-13 12:29:03,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 6 transitions, 30 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 12:29:03,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:03,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 6 [2022-12-13 12:29:03,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:03,805 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 12:29:03,806 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:03,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 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 4 conditions per place. [2022-12-13 12:29:03,806 INFO L137 encePairwiseOnDemand]: 3/6 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2022-12-13 12:29:03,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 5 transitions, 34 flow [2022-12-13 12:29:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:29:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:29:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-12-13 12:29:03,807 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-13 12:29:03,807 INFO L175 Difference]: Start difference. First operand has 13 places, 6 transitions, 30 flow. Second operand 4 states and 6 transitions. [2022-12-13 12:29:03,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 5 transitions, 34 flow [2022-12-13 12:29:03,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 5 transitions, 22 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 12:29:03,807 INFO L231 Difference]: Finished difference. Result has 11 places, 0 transitions, 0 flow [2022-12-13 12:29:03,807 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=6, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=11, PETRI_TRANSITIONS=0} [2022-12-13 12:29:03,808 INFO L295 CegarLoopForPetriNet]: 40 programPoint places, -29 predicate places. [2022-12-13 12:29:03,808 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:03,808 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 0 transitions, 0 flow [2022-12-13 12:29:03,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 12:29:03,808 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:29:03,808 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:03,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 12:29:03,809 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 12:29:03,809 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 12:29:03,809 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:29:03,809 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-13 12:29:03,810 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 12:29:03,810 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 12:29:03,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 12:29:03,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 12:29:03,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:29:03,812 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 12:29:03,814 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:29:03,814 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:29:03,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:29:03 BasicIcfg [2022-12-13 12:29:03,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:29:03,817 INFO L158 Benchmark]: Toolchain (without parser) took 6849.25ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 185.7MB in the beginning and 85.6MB in the end (delta: 100.1MB). Peak memory consumption was 141.8MB. Max. memory is 8.0GB. [2022-12-13 12:29:03,817 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory is still 186.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 12:29:03,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.10ms. Allocated memory is still 209.7MB. Free memory was 185.5MB in the beginning and 165.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-13 12:29:03,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.36ms. Allocated memory is still 209.7MB. Free memory was 165.0MB in the beginning and 163.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 12:29:03,818 INFO L158 Benchmark]: Boogie Preprocessor took 25.35ms. Allocated memory is still 209.7MB. Free memory was 163.5MB in the beginning and 161.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 12:29:03,818 INFO L158 Benchmark]: RCFGBuilder took 359.36ms. Allocated memory is still 209.7MB. Free memory was 161.4MB in the beginning and 146.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 12:29:03,818 INFO L158 Benchmark]: TraceAbstraction took 6093.08ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 145.1MB in the beginning and 85.6MB in the end (delta: 59.5MB). Peak memory consumption was 100.9MB. Max. memory is 8.0GB. [2022-12-13 12:29:03,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory is still 186.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 317.10ms. Allocated memory is still 209.7MB. Free memory was 185.5MB in the beginning and 165.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.36ms. Allocated memory is still 209.7MB. Free memory was 165.0MB in the beginning and 163.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.35ms. Allocated memory is still 209.7MB. Free memory was 163.5MB in the beginning and 161.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 359.36ms. Allocated memory is still 209.7MB. Free memory was 161.4MB in the beginning and 146.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 6093.08ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 145.1MB in the beginning and 85.6MB in the end (delta: 59.5MB). Peak memory consumption was 100.9MB. 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: 150, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 93, dependent conditional: 0, dependent unconditional: 93, 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: 0.8s, 33 PlacesBefore, 29 PlacesAfterwards, 27 TransitionsBefore, 23 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 160, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 53, dependent conditional: 53, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 160, independent: 107, independent conditional: 15, independent unconditional: 92, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 160, independent: 107, independent conditional: 15, independent unconditional: 92, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 160, independent: 107, independent conditional: 15, independent unconditional: 92, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 69, independent: 54, independent conditional: 11, independent unconditional: 43, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 24, independent conditional: 2, independent unconditional: 22, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, independent: 28, independent conditional: 3, independent unconditional: 25, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 160, independent: 53, independent conditional: 4, independent unconditional: 49, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 69, unknown conditional: 11, unknown unconditional: 58] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 67, Positive conditional cache size: 11, Positive unconditional cache size: 56, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 17 PlacesBefore, 13 PlacesAfterwards, 10 TransitionsBefore, 6 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 4 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): 111, Positive cache size: 96, Positive conditional cache size: 15, Positive unconditional cache size: 81, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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): 111, Positive cache size: 96, Positive conditional cache size: 15, Positive unconditional cache size: 81, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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: 6.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 0 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 12:29:03,866 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...