/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-0612a5f-m [2022-09-20 20:44:40,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 20:44:40,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 20:44:40,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 20:44:40,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 20:44:40,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 20:44:40,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 20:44:40,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 20:44:40,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 20:44:40,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 20:44:40,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 20:44:40,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 20:44:40,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 20:44:40,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 20:44:40,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 20:44:40,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 20:44:40,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 20:44:40,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 20:44:40,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 20:44:40,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 20:44:40,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 20:44:40,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 20:44:40,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 20:44:40,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 20:44:40,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 20:44:40,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 20:44:40,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 20:44:40,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 20:44:40,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 20:44:40,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 20:44:40,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 20:44:40,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 20:44:40,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 20:44:40,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 20:44:40,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 20:44:40,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 20:44:40,529 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-NoLbe.epf [2022-09-20 20:44:40,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 20:44:40,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 20:44:40,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 20:44:40,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 20:44:40,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 20:44:40,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 20:44:40,555 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 20:44:40,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 20:44:40,555 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 20:44:40,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 20:44:40,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 20:44:40,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:44:40,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 20:44:40,558 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 20:44:40,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 20:44:40,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 20:44:40,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 20:44:40,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 20:44:40,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 20:44:40,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 20:44:40,741 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 20:44:40,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-09-20 20:44:40,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f24fd3d/82a18feb218044beb6e23d356fcde251/FLAG23016d642 [2022-09-20 20:44:41,234 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 20:44:41,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-09-20 20:44:41,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f24fd3d/82a18feb218044beb6e23d356fcde251/FLAG23016d642 [2022-09-20 20:44:41,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f24fd3d/82a18feb218044beb6e23d356fcde251 [2022-09-20 20:44:41,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 20:44:41,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 20:44:41,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 20:44:41,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 20:44:41,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 20:44:41,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a882e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41, skipping insertion in model container [2022-09-20 20:44:41,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 20:44:41,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 20:44:41,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-09-20 20:44:41,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:44:41,511 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 20:44:41,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-09-20 20:44:41,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:44:41,571 INFO L208 MainTranslator]: Completed translation [2022-09-20 20:44:41,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41 WrapperNode [2022-09-20 20:44:41,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 20:44:41,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 20:44:41,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 20:44:41,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 20:44:41,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,601 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2022-09-20 20:44:41,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 20:44:41,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 20:44:41,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 20:44:41,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 20:44:41,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 20:44:41,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 20:44:41,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 20:44:41,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 20:44:41,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (1/1) ... [2022-09-20 20:44:41,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:44:41,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 20:44:41,638 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) [2022-09-20 20:44:41,645 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 [2022-09-20 20:44:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 20:44:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 20:44:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 20:44:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 20:44:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 20:44:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-20 20:44:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-20 20:44:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 20:44:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 20:44:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 20:44:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 20:44:41,666 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 20:44:41,735 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 20:44:41,736 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 20:44:41,854 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 20:44:41,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 20:44:41,859 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 20:44:41,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:44:41 BoogieIcfgContainer [2022-09-20 20:44:41,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 20:44:41,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 20:44:41,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 20:44:41,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 20:44:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 08:44:41" (1/3) ... [2022-09-20 20:44:41,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63436ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:44:41, skipping insertion in model container [2022-09-20 20:44:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:44:41" (2/3) ... [2022-09-20 20:44:41,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63436ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:44:41, skipping insertion in model container [2022-09-20 20:44:41,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:44:41" (3/3) ... [2022-09-20 20:44:41,867 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2022-09-20 20:44:41,879 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 20:44:41,879 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-20 20:44:41,879 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 20:44:41,907 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-20 20:44:41,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 218 flow [2022-09-20 20:44:41,965 INFO L130 PetriNetUnfolder]: 4/104 cut-off events. [2022-09-20 20:44:41,965 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 20:44:41,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 104 events. 4/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-09-20 20:44:41,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 105 transitions, 218 flow [2022-09-20 20:44:41,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 96 transitions, 195 flow [2022-09-20 20:44:41,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 20:44:41,984 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=PETRI_NET, 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;@130dfed4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 20:44:41,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-09-20 20:44:41,992 INFO L130 PetriNetUnfolder]: 1/39 cut-off events. [2022-09-20 20:44:41,992 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:44:41,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:44:41,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:41,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 20:44:41,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:44:41,997 INFO L85 PathProgramCache]: Analyzing trace with hash -117580950, now seen corresponding path program 1 times [2022-09-20 20:44:42,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:44:42,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517945720] [2022-09-20 20:44:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:44:42,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:44:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:44:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:44:42,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:44:42,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517945720] [2022-09-20 20:44:42,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517945720] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:44:42,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:44:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 20:44:42,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693640279] [2022-09-20 20:44:42,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:44:42,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 20:44:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:44:42,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 20:44:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 20:44:42,236 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 105 [2022-09-20 20:44:42,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 96 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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) [2022-09-20 20:44:42,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:44:42,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 105 [2022-09-20 20:44:42,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:44:42,343 INFO L130 PetriNetUnfolder]: 36/209 cut-off events. [2022-09-20 20:44:42,344 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 20:44:42,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 209 events. 36/209 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 789 event pairs, 4 based on Foata normal form. 25/223 useless extension candidates. Maximal degree in co-relation 254. Up to 36 conditions per place. [2022-09-20 20:44:42,346 INFO L137 encePairwiseOnDemand]: 93/105 looper letters, 23 selfloop transitions, 8 changer transitions 0/98 dead transitions. [2022-09-20 20:44:42,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 98 transitions, 261 flow [2022-09-20 20:44:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 20:44:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 20:44:42,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 572 transitions. [2022-09-20 20:44:42,366 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7782312925170068 [2022-09-20 20:44:42,367 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 572 transitions. [2022-09-20 20:44:42,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 572 transitions. [2022-09-20 20:44:42,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:44:42,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 572 transitions. [2022-09-20 20:44:42,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 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) [2022-09-20 20:44:42,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 20:44:42,396 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 20:44:42,397 INFO L175 Difference]: Start difference. First operand has 96 places, 96 transitions, 195 flow. Second operand 7 states and 572 transitions. [2022-09-20 20:44:42,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 98 transitions, 261 flow [2022-09-20 20:44:42,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 98 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-20 20:44:42,402 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 201 flow [2022-09-20 20:44:42,413 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=201, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2022-09-20 20:44:42,416 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-09-20 20:44:42,416 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 201 flow [2022-09-20 20:44:42,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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) [2022-09-20 20:44:42,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:44:42,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:42,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 20:44:42,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 20:44:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:44:42,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1221049129, now seen corresponding path program 1 times [2022-09-20 20:44:42,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:44:42,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47183288] [2022-09-20 20:44:42,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:44:42,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:44:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:44:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:44:42,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:44:42,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47183288] [2022-09-20 20:44:42,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47183288] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:44:42,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:44:42,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 20:44:42,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876633970] [2022-09-20 20:44:42,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:44:42,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 20:44:42,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:44:42,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 20:44:42,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 20:44:42,578 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 105 [2022-09-20 20:44:42,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 201 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2022-09-20 20:44:42,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:44:42,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 105 [2022-09-20 20:44:42,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:44:42,793 INFO L130 PetriNetUnfolder]: 99/483 cut-off events. [2022-09-20 20:44:42,794 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-09-20 20:44:42,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 483 events. 99/483 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2761 event pairs, 31 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 762. Up to 69 conditions per place. [2022-09-20 20:44:42,797 INFO L137 encePairwiseOnDemand]: 92/105 looper letters, 51 selfloop transitions, 19 changer transitions 2/136 dead transitions. [2022-09-20 20:44:42,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 136 transitions, 470 flow [2022-09-20 20:44:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-20 20:44:42,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-09-20 20:44:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 962 transitions. [2022-09-20 20:44:42,801 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7634920634920634 [2022-09-20 20:44:42,801 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 962 transitions. [2022-09-20 20:44:42,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 962 transitions. [2022-09-20 20:44:42,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:44:42,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 962 transitions. [2022-09-20 20:44:42,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 80.16666666666667) internal successors, (962), 12 states have internal predecessors, (962), 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) [2022-09-20 20:44:42,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 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) [2022-09-20 20:44:42,809 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 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) [2022-09-20 20:44:42,809 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 201 flow. Second operand 12 states and 962 transitions. [2022-09-20 20:44:42,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 136 transitions, 470 flow [2022-09-20 20:44:42,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 136 transitions, 442 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-09-20 20:44:42,813 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 304 flow [2022-09-20 20:44:42,813 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=304, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2022-09-20 20:44:42,814 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 12 predicate places. [2022-09-20 20:44:42,814 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 304 flow [2022-09-20 20:44:42,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2022-09-20 20:44:42,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:44:42,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:42,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 20:44:42,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 20:44:42,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:44:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash 886861433, now seen corresponding path program 1 times [2022-09-20 20:44:42,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:44:42,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837026416] [2022-09-20 20:44:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:44:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:44:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:44:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:44:42,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:44:42,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837026416] [2022-09-20 20:44:42,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837026416] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:44:42,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:44:42,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:44:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047128992] [2022-09-20 20:44:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:44:42,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:44:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:44:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:44:42,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:44:42,967 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 105 [2022-09-20 20:44:42,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 304 flow. Second operand has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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) [2022-09-20 20:44:42,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:44:42,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 105 [2022-09-20 20:44:42,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:44:43,165 INFO L130 PetriNetUnfolder]: 94/585 cut-off events. [2022-09-20 20:44:43,165 INFO L131 PetriNetUnfolder]: For 281/305 co-relation queries the response was YES. [2022-09-20 20:44:43,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 585 events. 94/585 cut-off events. For 281/305 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3999 event pairs, 3 based on Foata normal form. 10/583 useless extension candidates. Maximal degree in co-relation 1089. Up to 96 conditions per place. [2022-09-20 20:44:43,171 INFO L137 encePairwiseOnDemand]: 91/105 looper letters, 46 selfloop transitions, 26 changer transitions 4/148 dead transitions. [2022-09-20 20:44:43,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 148 transitions, 655 flow [2022-09-20 20:44:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 20:44:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 20:44:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1025 transitions. [2022-09-20 20:44:43,173 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7509157509157509 [2022-09-20 20:44:43,173 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1025 transitions. [2022-09-20 20:44:43,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1025 transitions. [2022-09-20 20:44:43,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:44:43,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1025 transitions. [2022-09-20 20:44:43,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.84615384615384) internal successors, (1025), 13 states have internal predecessors, (1025), 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) [2022-09-20 20:44:43,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2022-09-20 20:44:43,178 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2022-09-20 20:44:43,178 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 304 flow. Second operand 13 states and 1025 transitions. [2022-09-20 20:44:43,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 148 transitions, 655 flow [2022-09-20 20:44:43,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 148 transitions, 651 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-09-20 20:44:43,187 INFO L231 Difference]: Finished difference. Result has 127 places, 119 transitions, 478 flow [2022-09-20 20:44:43,187 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=478, PETRI_PLACES=127, PETRI_TRANSITIONS=119} [2022-09-20 20:44:43,189 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 31 predicate places. [2022-09-20 20:44:43,189 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 119 transitions, 478 flow [2022-09-20 20:44:43,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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) [2022-09-20 20:44:43,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:44:43,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:43,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 20:44:43,191 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 20:44:43,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:44:43,191 INFO L85 PathProgramCache]: Analyzing trace with hash -482767075, now seen corresponding path program 1 times [2022-09-20 20:44:43,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:44:43,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90728858] [2022-09-20 20:44:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:44:43,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:44:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:44:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:44:43,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:44:43,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90728858] [2022-09-20 20:44:43,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90728858] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:44:43,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:44:43,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-20 20:44:43,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474718765] [2022-09-20 20:44:43,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:44:43,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 20:44:43,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:44:43,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 20:44:43,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 20:44:43,261 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 105 [2022-09-20 20:44:43,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-09-20 20:44:43,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:44:43,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 105 [2022-09-20 20:44:43,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:44:43,285 INFO L130 PetriNetUnfolder]: 0/124 cut-off events. [2022-09-20 20:44:43,285 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-09-20 20:44:43,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 124 events. 0/124 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 2/126 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-09-20 20:44:43,286 INFO L137 encePairwiseOnDemand]: 101/105 looper letters, 7 selfloop transitions, 4 changer transitions 4/103 dead transitions. [2022-09-20 20:44:43,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 103 transitions, 374 flow [2022-09-20 20:44:43,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 20:44:43,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 20:44:43,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2022-09-20 20:44:43,287 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8507936507936508 [2022-09-20 20:44:43,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2022-09-20 20:44:43,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2022-09-20 20:44:43,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:44:43,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2022-09-20 20:44:43,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-09-20 20:44:43,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2022-09-20 20:44:43,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2022-09-20 20:44:43,289 INFO L175 Difference]: Start difference. First operand has 127 places, 119 transitions, 478 flow. Second operand 3 states and 268 transitions. [2022-09-20 20:44:43,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 103 transitions, 374 flow [2022-09-20 20:44:43,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 103 transitions, 340 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-09-20 20:44:43,294 INFO L231 Difference]: Finished difference. Result has 118 places, 99 transitions, 308 flow [2022-09-20 20:44:43,295 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=118, PETRI_TRANSITIONS=99} [2022-09-20 20:44:43,296 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 22 predicate places. [2022-09-20 20:44:43,296 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 99 transitions, 308 flow [2022-09-20 20:44:43,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-09-20 20:44:43,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:44:43,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:43,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 20:44:43,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 20:44:43,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:44:43,300 INFO L85 PathProgramCache]: Analyzing trace with hash -33373823, now seen corresponding path program 1 times [2022-09-20 20:44:43,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:44:43,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242995829] [2022-09-20 20:44:43,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:44:43,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:44:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:44:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:44:43,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:44:43,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242995829] [2022-09-20 20:44:43,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242995829] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:44:43,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:44:43,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 20:44:43,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090865606] [2022-09-20 20:44:43,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:44:43,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 20:44:43,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:44:43,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 20:44:43,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 20:44:43,380 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 105 [2022-09-20 20:44:43,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 99 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2022-09-20 20:44:43,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:44:43,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 105 [2022-09-20 20:44:43,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:44:43,428 INFO L130 PetriNetUnfolder]: 0/107 cut-off events. [2022-09-20 20:44:43,428 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-09-20 20:44:43,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 107 events. 0/107 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2022-09-20 20:44:43,429 INFO L137 encePairwiseOnDemand]: 98/105 looper letters, 20 selfloop transitions, 6 changer transitions 4/97 dead transitions. [2022-09-20 20:44:43,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 97 transitions, 364 flow [2022-09-20 20:44:43,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 20:44:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 20:44:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 549 transitions. [2022-09-20 20:44:43,431 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.746938775510204 [2022-09-20 20:44:43,431 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 549 transitions. [2022-09-20 20:44:43,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 549 transitions. [2022-09-20 20:44:43,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:44:43,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 549 transitions. [2022-09-20 20:44:43,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 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) [2022-09-20 20:44:43,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 20:44:43,434 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 20:44:43,434 INFO L175 Difference]: Start difference. First operand has 118 places, 99 transitions, 308 flow. Second operand 7 states and 549 transitions. [2022-09-20 20:44:43,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 97 transitions, 364 flow [2022-09-20 20:44:43,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 97 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 20:44:43,438 INFO L231 Difference]: Finished difference. Result has 120 places, 93 transitions, 289 flow [2022-09-20 20:44:43,438 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=289, PETRI_PLACES=120, PETRI_TRANSITIONS=93} [2022-09-20 20:44:43,440 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 24 predicate places. [2022-09-20 20:44:43,440 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 93 transitions, 289 flow [2022-09-20 20:44:43,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2022-09-20 20:44:43,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:44:43,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:43,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 20:44:43,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 20:44:43,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:44:43,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1302835314, now seen corresponding path program 1 times [2022-09-20 20:44:43,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:44:43,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271329474] [2022-09-20 20:44:43,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:44:43,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:44:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:44:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:44:43,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:44:43,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271329474] [2022-09-20 20:44:43,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271329474] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:44:43,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:44:43,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-20 20:44:43,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143101883] [2022-09-20 20:44:43,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:44:43,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-20 20:44:43,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:44:43,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-20 20:44:43,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-09-20 20:44:43,588 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-09-20 20:44:43,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 93 transitions, 289 flow. Second operand has 9 states, 9 states have (on average 72.88888888888889) internal successors, (656), 9 states have internal predecessors, (656), 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) [2022-09-20 20:44:43,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:44:43,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-09-20 20:44:43,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:44:43,786 INFO L130 PetriNetUnfolder]: 7/117 cut-off events. [2022-09-20 20:44:43,787 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-09-20 20:44:43,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 117 events. 7/117 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 134 event pairs, 1 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 177. Up to 8 conditions per place. [2022-09-20 20:44:43,788 INFO L137 encePairwiseOnDemand]: 89/105 looper letters, 8 selfloop transitions, 12 changer transitions 21/96 dead transitions. [2022-09-20 20:44:43,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 96 transitions, 363 flow [2022-09-20 20:44:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-20 20:44:43,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-20 20:44:43,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1311 transitions. [2022-09-20 20:44:43,790 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6936507936507936 [2022-09-20 20:44:43,790 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1311 transitions. [2022-09-20 20:44:43,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1311 transitions. [2022-09-20 20:44:43,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:44:43,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1311 transitions. [2022-09-20 20:44:43,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 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) [2022-09-20 20:44:43,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 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) [2022-09-20 20:44:43,797 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 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) [2022-09-20 20:44:43,797 INFO L175 Difference]: Start difference. First operand has 120 places, 93 transitions, 289 flow. Second operand 18 states and 1311 transitions. [2022-09-20 20:44:43,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 96 transitions, 363 flow [2022-09-20 20:44:43,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 96 transitions, 337 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-09-20 20:44:43,799 INFO L231 Difference]: Finished difference. Result has 123 places, 75 transitions, 216 flow [2022-09-20 20:44:43,799 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=216, PETRI_PLACES=123, PETRI_TRANSITIONS=75} [2022-09-20 20:44:43,801 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 27 predicate places. [2022-09-20 20:44:43,801 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 75 transitions, 216 flow [2022-09-20 20:44:43,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.88888888888889) internal successors, (656), 9 states have internal predecessors, (656), 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) [2022-09-20 20:44:43,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:44:43,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:43,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 20:44:43,802 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 20:44:43,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:44:43,803 INFO L85 PathProgramCache]: Analyzing trace with hash 716605915, now seen corresponding path program 1 times [2022-09-20 20:44:43,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:44:43,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876143118] [2022-09-20 20:44:43,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:44:43,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:44:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:44:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:44:43,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:44:43,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876143118] [2022-09-20 20:44:43,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876143118] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:44:43,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:44:43,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 20:44:43,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377805835] [2022-09-20 20:44:43,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:44:43,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 20:44:43,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:44:43,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 20:44:43,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-09-20 20:44:43,928 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 105 [2022-09-20 20:44:43,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 75 transitions, 216 flow. Second operand has 8 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2022-09-20 20:44:43,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:44:43,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 105 [2022-09-20 20:44:43,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:44:44,047 INFO L130 PetriNetUnfolder]: 0/75 cut-off events. [2022-09-20 20:44:44,048 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-09-20 20:44:44,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 75 events. 0/75 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-09-20 20:44:44,049 INFO L137 encePairwiseOnDemand]: 93/105 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2022-09-20 20:44:44,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 73 transitions, 248 flow [2022-09-20 20:44:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-20 20:44:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-20 20:44:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 812 transitions. [2022-09-20 20:44:44,051 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.703030303030303 [2022-09-20 20:44:44,051 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 812 transitions. [2022-09-20 20:44:44,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 812 transitions. [2022-09-20 20:44:44,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:44:44,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 812 transitions. [2022-09-20 20:44:44,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.81818181818181) internal successors, (812), 11 states have internal predecessors, (812), 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) [2022-09-20 20:44:44,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 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) [2022-09-20 20:44:44,055 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 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) [2022-09-20 20:44:44,055 INFO L175 Difference]: Start difference. First operand has 123 places, 75 transitions, 216 flow. Second operand 11 states and 812 transitions. [2022-09-20 20:44:44,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 73 transitions, 248 flow [2022-09-20 20:44:44,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 73 transitions, 193 flow, removed 4 selfloop flow, removed 24 redundant places. [2022-09-20 20:44:44,056 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2022-09-20 20:44:44,056 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2022-09-20 20:44:44,057 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, -5 predicate places. [2022-09-20 20:44:44,057 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2022-09-20 20:44:44,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2022-09-20 20:44:44,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-09-20 20:44:44,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-09-20 20:44:44,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-09-20 20:44:44,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-09-20 20:44:44,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-09-20 20:44:44,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-09-20 20:44:44,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-09-20 20:44:44,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 20:44:44,060 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:44:44,064 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 20:44:44,064 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 20:44:44,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 08:44:44 BasicIcfg [2022-09-20 20:44:44,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 20:44:44,070 INFO L158 Benchmark]: Toolchain (without parser) took 2803.24ms. Allocated memory was 179.3MB in the beginning and 269.5MB in the end (delta: 90.2MB). Free memory was 149.4MB in the beginning and 153.2MB in the end (delta: -3.8MB). Peak memory consumption was 86.2MB. Max. memory is 8.0GB. [2022-09-20 20:44:44,072 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 20:44:44,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.32ms. Allocated memory was 179.3MB in the beginning and 269.5MB in the end (delta: 90.2MB). Free memory was 149.2MB in the beginning and 229.3MB in the end (delta: -80.1MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2022-09-20 20:44:44,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.30ms. Allocated memory is still 269.5MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 20:44:44,072 INFO L158 Benchmark]: Boogie Preprocessor took 14.51ms. Allocated memory is still 269.5MB. Free memory was 227.2MB in the beginning and 226.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 20:44:44,072 INFO L158 Benchmark]: RCFGBuilder took 244.16ms. Allocated memory is still 269.5MB. Free memory was 225.6MB in the beginning and 212.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-20 20:44:44,073 INFO L158 Benchmark]: TraceAbstraction took 2205.73ms. Allocated memory is still 269.5MB. Free memory was 212.0MB in the beginning and 153.2MB in the end (delta: 58.8MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. [2022-09-20 20:44:44,074 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 179.3MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 306.32ms. Allocated memory was 179.3MB in the beginning and 269.5MB in the end (delta: 90.2MB). Free memory was 149.2MB in the beginning and 229.3MB in the end (delta: -80.1MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.30ms. Allocated memory is still 269.5MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.51ms. Allocated memory is still 269.5MB. Free memory was 227.2MB in the beginning and 226.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 244.16ms. Allocated memory is still 269.5MB. Free memory was 225.6MB in the beginning and 212.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2205.73ms. Allocated memory is still 269.5MB. Free memory was 212.0MB in the beginning and 153.2MB in the end (delta: 58.8MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 132 locations, 7 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: 2.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 277 mSDsluCounter, 331 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 106 mSDtfsCounter, 353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=478occurred in iteration=3, InterpolantAutomatonStates: 71, 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, 0.7s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 1653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 20:44:44,100 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...