/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 02:16:28,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 02:16:28,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 02:16:28,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 02:16:28,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 02:16:28,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 02:16:28,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 02:16:28,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 02:16:28,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 02:16:28,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 02:16:28,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 02:16:28,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 02:16:28,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 02:16:28,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 02:16:28,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 02:16:28,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 02:16:28,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 02:16:28,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 02:16:28,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 02:16:28,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 02:16:28,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 02:16:28,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 02:16:28,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 02:16:28,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 02:16:28,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 02:16:28,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 02:16:28,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 02:16:28,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 02:16:28,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 02:16:28,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 02:16:28,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 02:16:28,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 02:16:28,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 02:16:28,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 02:16:28,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 02:16:28,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 02:16:28,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 02:16:28,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 02:16:28,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 02:16:28,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 02:16:28,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 02:16:28,553 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-VariableLbe.epf [2023-01-28 02:16:28,574 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 02:16:28,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 02:16:28,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 02:16:28,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 02:16:28,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 02:16:28,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 02:16:28,576 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 02:16:28,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 02:16:28,576 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 02:16:28,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 02:16:28,577 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 02:16:28,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:16:28,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 02:16:28,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 02:16:28,579 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 02:16:28,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 02:16:28,579 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 02:16:28,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 02:16:28,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 02:16:28,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 02:16:28,796 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 02:16:28,796 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 02:16:28,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2023-01-28 02:16:30,050 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 02:16:30,197 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 02:16:30,197 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2023-01-28 02:16:30,202 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c66c1609/6603baae0b8b415eb6a614e297176f49/FLAG4d88bcd2b [2023-01-28 02:16:30,211 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c66c1609/6603baae0b8b415eb6a614e297176f49 [2023-01-28 02:16:30,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 02:16:30,214 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 02:16:30,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 02:16:30,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 02:16:30,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 02:16:30,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c887de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30, skipping insertion in model container [2023-01-28 02:16:30,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 02:16:30,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 02:16:30,371 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2023-01-28 02:16:30,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:16:30,386 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 02:16:30,415 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2023-01-28 02:16:30,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:16:30,426 INFO L208 MainTranslator]: Completed translation [2023-01-28 02:16:30,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30 WrapperNode [2023-01-28 02:16:30,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 02:16:30,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 02:16:30,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 02:16:30,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 02:16:30,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,464 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-01-28 02:16:30,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 02:16:30,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 02:16:30,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 02:16:30,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 02:16:30,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 02:16:30,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 02:16:30,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 02:16:30,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 02:16:30,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (1/1) ... [2023-01-28 02:16:30,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:16:30,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:16:30,525 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) [2023-01-28 02:16:30,538 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 [2023-01-28 02:16:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 02:16:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 02:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 02:16:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 02:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 02:16:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 02:16:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 02:16:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-28 02:16:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-28 02:16:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 02:16:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 02:16:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 02:16:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 02:16:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 02:16:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 02:16:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 02:16:30,564 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 02:16:30,655 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 02:16:30,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 02:16:30,939 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 02:16:30,950 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 02:16:30,950 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-01-28 02:16:30,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:16:30 BoogieIcfgContainer [2023-01-28 02:16:30,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 02:16:30,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 02:16:30,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 02:16:30,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 02:16:30,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:16:30" (1/3) ... [2023-01-28 02:16:30,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56160ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:16:30, skipping insertion in model container [2023-01-28 02:16:30,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:16:30" (2/3) ... [2023-01-28 02:16:30,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56160ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:16:30, skipping insertion in model container [2023-01-28 02:16:30,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:16:30" (3/3) ... [2023-01-28 02:16:30,960 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2023-01-28 02:16:30,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 02:16:30,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 02:16:30,974 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 02:16:31,074 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-28 02:16:31,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 127 transitions, 286 flow [2023-01-28 02:16:31,160 INFO L130 PetriNetUnfolder]: 10/123 cut-off events. [2023-01-28 02:16:31,160 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 02:16:31,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 123 events. 10/123 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2023-01-28 02:16:31,165 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 127 transitions, 286 flow [2023-01-28 02:16:31,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 111 transitions, 246 flow [2023-01-28 02:16:31,172 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 02:16:31,188 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 111 transitions, 246 flow [2023-01-28 02:16:31,194 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 111 transitions, 246 flow [2023-01-28 02:16:31,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 111 transitions, 246 flow [2023-01-28 02:16:31,246 INFO L130 PetriNetUnfolder]: 10/111 cut-off events. [2023-01-28 02:16:31,246 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 02:16:31,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 111 events. 10/111 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2023-01-28 02:16:31,248 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-01-28 02:16:34,201 INFO L134 LiptonReduction]: Checked pairs total: 1649 [2023-01-28 02:16:34,201 INFO L136 LiptonReduction]: Total number of compositions: 99 [2023-01-28 02:16:34,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 02:16:34,220 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;@4934ae47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 02:16:34,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 02:16:34,232 INFO L130 PetriNetUnfolder]: 4/24 cut-off events. [2023-01-28 02:16:34,233 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 02:16:34,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:34,233 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] [2023-01-28 02:16:34,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:34,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:34,237 INFO L85 PathProgramCache]: Analyzing trace with hash 340783593, now seen corresponding path program 1 times [2023-01-28 02:16:34,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:34,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96724162] [2023-01-28 02:16:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:34,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:34,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:34,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96724162] [2023-01-28 02:16:34,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96724162] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:16:34,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:16:34,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 02:16:34,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666821911] [2023-01-28 02:16:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:16:34,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 02:16:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:16:34,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 02:16:34,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 02:16:34,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 226 [2023-01-28 02:16:34,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2023-01-28 02:16:34,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:16:34,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 226 [2023-01-28 02:16:34,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:16:34,944 INFO L130 PetriNetUnfolder]: 497/677 cut-off events. [2023-01-28 02:16:34,944 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-01-28 02:16:34,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1448 conditions, 677 events. 497/677 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1778 event pairs, 117 based on Foata normal form. 1/414 useless extension candidates. Maximal degree in co-relation 1016. Up to 471 conditions per place. [2023-01-28 02:16:34,949 INFO L137 encePairwiseOnDemand]: 220/226 looper letters, 41 selfloop transitions, 5 changer transitions 1/47 dead transitions. [2023-01-28 02:16:34,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 233 flow [2023-01-28 02:16:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 02:16:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 02:16:34,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-01-28 02:16:34,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45132743362831856 [2023-01-28 02:16:34,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-01-28 02:16:34,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-01-28 02:16:34,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:16:34,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-01-28 02:16:34,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2023-01-28 02:16:34,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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) [2023-01-28 02:16:34,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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) [2023-01-28 02:16:34,999 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 74 flow. Second operand 3 states and 306 transitions. [2023-01-28 02:16:35,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 47 transitions, 233 flow [2023-01-28 02:16:35,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 47 transitions, 203 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-01-28 02:16:35,004 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 91 flow [2023-01-28 02:16:35,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2023-01-28 02:16:35,007 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -5 predicate places. [2023-01-28 02:16:35,007 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 91 flow [2023-01-28 02:16:35,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2023-01-28 02:16:35,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:35,008 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] [2023-01-28 02:16:35,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 02:16:35,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:35,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:35,009 INFO L85 PathProgramCache]: Analyzing trace with hash -321644511, now seen corresponding path program 1 times [2023-01-28 02:16:35,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:35,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360017727] [2023-01-28 02:16:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:35,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:35,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:35,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360017727] [2023-01-28 02:16:35,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360017727] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:16:35,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:16:35,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 02:16:35,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506558240] [2023-01-28 02:16:35,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:16:35,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 02:16:35,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:16:35,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 02:16:35,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 02:16:35,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:16:35,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2023-01-28 02:16:35,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:16:35,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:16:35,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:16:35,334 INFO L130 PetriNetUnfolder]: 461/641 cut-off events. [2023-01-28 02:16:35,334 INFO L131 PetriNetUnfolder]: For 177/177 co-relation queries the response was YES. [2023-01-28 02:16:35,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1641 conditions, 641 events. 461/641 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1830 event pairs, 17 based on Foata normal form. 36/677 useless extension candidates. Maximal degree in co-relation 586. Up to 435 conditions per place. [2023-01-28 02:16:35,340 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 50 selfloop transitions, 9 changer transitions 1/60 dead transitions. [2023-01-28 02:16:35,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 60 transitions, 289 flow [2023-01-28 02:16:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 02:16:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 02:16:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2023-01-28 02:16:35,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44026548672566373 [2023-01-28 02:16:35,343 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2023-01-28 02:16:35,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2023-01-28 02:16:35,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:16:35,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2023-01-28 02:16:35,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 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) [2023-01-28 02:16:35,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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) [2023-01-28 02:16:35,348 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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) [2023-01-28 02:16:35,348 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 91 flow. Second operand 4 states and 398 transitions. [2023-01-28 02:16:35,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 60 transitions, 289 flow [2023-01-28 02:16:35,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 60 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 02:16:35,350 INFO L231 Difference]: Finished difference. Result has 32 places, 33 transitions, 127 flow [2023-01-28 02:16:35,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=32, PETRI_TRANSITIONS=33} [2023-01-28 02:16:35,351 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2023-01-28 02:16:35,351 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 33 transitions, 127 flow [2023-01-28 02:16:35,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2023-01-28 02:16:35,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:35,352 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] [2023-01-28 02:16:35,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 02:16:35,352 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:35,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1574738466, now seen corresponding path program 1 times [2023-01-28 02:16:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022726798] [2023-01-28 02:16:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:35,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:35,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:35,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022726798] [2023-01-28 02:16:35,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022726798] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:16:35,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:16:35,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 02:16:35,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283763450] [2023-01-28 02:16:35,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:16:35,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 02:16:35,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:16:35,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 02:16:35,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 02:16:35,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:16:35,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 33 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2023-01-28 02:16:35,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:16:35,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:16:35,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:16:35,726 INFO L130 PetriNetUnfolder]: 431/611 cut-off events. [2023-01-28 02:16:35,726 INFO L131 PetriNetUnfolder]: For 478/478 co-relation queries the response was YES. [2023-01-28 02:16:35,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 611 events. 431/611 cut-off events. For 478/478 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1711 event pairs, 47 based on Foata normal form. 30/641 useless extension candidates. Maximal degree in co-relation 523. Up to 405 conditions per place. [2023-01-28 02:16:35,730 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 44 selfloop transitions, 11 changer transitions 11/66 dead transitions. [2023-01-28 02:16:35,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 66 transitions, 359 flow [2023-01-28 02:16:35,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 02:16:35,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 02:16:35,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2023-01-28 02:16:35,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44026548672566373 [2023-01-28 02:16:35,732 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2023-01-28 02:16:35,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2023-01-28 02:16:35,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:16:35,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2023-01-28 02:16:35,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 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) [2023-01-28 02:16:35,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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) [2023-01-28 02:16:35,736 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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) [2023-01-28 02:16:35,736 INFO L175 Difference]: Start difference. First operand has 32 places, 33 transitions, 127 flow. Second operand 4 states and 398 transitions. [2023-01-28 02:16:35,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 66 transitions, 359 flow [2023-01-28 02:16:35,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 66 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 02:16:35,739 INFO L231 Difference]: Finished difference. Result has 34 places, 37 transitions, 162 flow [2023-01-28 02:16:35,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=34, PETRI_TRANSITIONS=37} [2023-01-28 02:16:35,740 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-01-28 02:16:35,740 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 162 flow [2023-01-28 02:16:35,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2023-01-28 02:16:35,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:35,740 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] [2023-01-28 02:16:35,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 02:16:35,741 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:35,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash 763566634, now seen corresponding path program 1 times [2023-01-28 02:16:35,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:35,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081673616] [2023-01-28 02:16:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:35,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:35,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081673616] [2023-01-28 02:16:35,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081673616] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:16:35,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777049951] [2023-01-28 02:16:35,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:35,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:16:35,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:16:35,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:16:35,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 02:16:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:36,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 02:16:36,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:16:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:36,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:16:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:36,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777049951] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:16:36,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:16:36,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-28 02:16:36,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540272366] [2023-01-28 02:16:36,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:16:36,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 02:16:36,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:16:36,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 02:16:36,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-01-28 02:16:36,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:16:36,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 37 transitions, 162 flow. Second operand has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2023-01-28 02:16:36,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:16:36,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:16:36,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:16:36,865 INFO L130 PetriNetUnfolder]: 809/1129 cut-off events. [2023-01-28 02:16:36,869 INFO L131 PetriNetUnfolder]: For 716/716 co-relation queries the response was YES. [2023-01-28 02:16:36,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3396 conditions, 1129 events. 809/1129 cut-off events. For 716/716 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3542 event pairs, 185 based on Foata normal form. 30/1159 useless extension candidates. Maximal degree in co-relation 819. Up to 422 conditions per place. [2023-01-28 02:16:36,875 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 85 selfloop transitions, 14 changer transitions 3/102 dead transitions. [2023-01-28 02:16:36,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 102 transitions, 567 flow [2023-01-28 02:16:36,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 02:16:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 02:16:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 600 transitions. [2023-01-28 02:16:36,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424778761061947 [2023-01-28 02:16:36,876 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 600 transitions. [2023-01-28 02:16:36,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 600 transitions. [2023-01-28 02:16:36,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:16:36,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 600 transitions. [2023-01-28 02:16:36,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2023-01-28 02:16:36,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 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) [2023-01-28 02:16:36,880 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 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) [2023-01-28 02:16:36,880 INFO L175 Difference]: Start difference. First operand has 34 places, 37 transitions, 162 flow. Second operand 6 states and 600 transitions. [2023-01-28 02:16:36,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 102 transitions, 567 flow [2023-01-28 02:16:36,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 102 transitions, 558 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 02:16:36,884 INFO L231 Difference]: Finished difference. Result has 41 places, 42 transitions, 224 flow [2023-01-28 02:16:36,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=41, PETRI_TRANSITIONS=42} [2023-01-28 02:16:36,885 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-01-28 02:16:36,885 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 42 transitions, 224 flow [2023-01-28 02:16:36,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2023-01-28 02:16:36,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:36,885 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] [2023-01-28 02:16:36,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-01-28 02:16:37,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:16:37,091 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:37,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:37,092 INFO L85 PathProgramCache]: Analyzing trace with hash -266488156, now seen corresponding path program 2 times [2023-01-28 02:16:37,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:37,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752562346] [2023-01-28 02:16:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:37,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:37,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:37,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752562346] [2023-01-28 02:16:37,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752562346] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:16:37,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:16:37,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 02:16:37,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444012053] [2023-01-28 02:16:37,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:16:37,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 02:16:37,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:16:37,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 02:16:37,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 02:16:37,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:16:37,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 42 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2023-01-28 02:16:37,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:16:37,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:16:37,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:16:37,436 INFO L130 PetriNetUnfolder]: 897/1245 cut-off events. [2023-01-28 02:16:37,437 INFO L131 PetriNetUnfolder]: For 1855/1855 co-relation queries the response was YES. [2023-01-28 02:16:37,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4386 conditions, 1245 events. 897/1245 cut-off events. For 1855/1855 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3982 event pairs, 229 based on Foata normal form. 28/1273 useless extension candidates. Maximal degree in co-relation 2498. Up to 937 conditions per place. [2023-01-28 02:16:37,445 INFO L137 encePairwiseOnDemand]: 220/226 looper letters, 59 selfloop transitions, 10 changer transitions 3/72 dead transitions. [2023-01-28 02:16:37,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 72 transitions, 473 flow [2023-01-28 02:16:37,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 02:16:37,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 02:16:37,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 396 transitions. [2023-01-28 02:16:37,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43805309734513276 [2023-01-28 02:16:37,447 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 396 transitions. [2023-01-28 02:16:37,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 396 transitions. [2023-01-28 02:16:37,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:16:37,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 396 transitions. [2023-01-28 02:16:37,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2023-01-28 02:16:37,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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) [2023-01-28 02:16:37,451 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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) [2023-01-28 02:16:37,451 INFO L175 Difference]: Start difference. First operand has 41 places, 42 transitions, 224 flow. Second operand 4 states and 396 transitions. [2023-01-28 02:16:37,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 72 transitions, 473 flow [2023-01-28 02:16:37,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 462 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 02:16:37,458 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 246 flow [2023-01-28 02:16:37,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2023-01-28 02:16:37,460 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2023-01-28 02:16:37,460 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 246 flow [2023-01-28 02:16:37,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2023-01-28 02:16:37,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:37,461 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] [2023-01-28 02:16:37,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 02:16:37,461 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:37,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:37,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1410911463, now seen corresponding path program 2 times [2023-01-28 02:16:37,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:37,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346502589] [2023-01-28 02:16:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:37,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:37,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:37,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346502589] [2023-01-28 02:16:37,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346502589] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:16:37,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565124255] [2023-01-28 02:16:37,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 02:16:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:16:37,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:16:37,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:16:37,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 02:16:37,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 02:16:37,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 02:16:37,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 02:16:37,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:16:37,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:37,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:16:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565124255] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:16:37,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:16:37,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-28 02:16:37,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632508519] [2023-01-28 02:16:37,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:16:37,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 02:16:37,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:16:37,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 02:16:37,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-01-28 02:16:37,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:16:37,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 246 flow. Second operand has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 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) [2023-01-28 02:16:37,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:16:37,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:16:37,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:16:38,101 INFO L130 PetriNetUnfolder]: 1793/2461 cut-off events. [2023-01-28 02:16:38,101 INFO L131 PetriNetUnfolder]: For 4636/4636 co-relation queries the response was YES. [2023-01-28 02:16:38,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9082 conditions, 2461 events. 1793/2461 cut-off events. For 4636/4636 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9125 event pairs, 325 based on Foata normal form. 104/2565 useless extension candidates. Maximal degree in co-relation 4890. Up to 1139 conditions per place. [2023-01-28 02:16:38,116 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 111 selfloop transitions, 14 changer transitions 3/128 dead transitions. [2023-01-28 02:16:38,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 128 transitions, 880 flow [2023-01-28 02:16:38,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 02:16:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 02:16:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 604 transitions. [2023-01-28 02:16:38,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44542772861356933 [2023-01-28 02:16:38,118 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 604 transitions. [2023-01-28 02:16:38,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 604 transitions. [2023-01-28 02:16:38,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:16:38,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 604 transitions. [2023-01-28 02:16:38,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 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) [2023-01-28 02:16:38,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 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) [2023-01-28 02:16:38,121 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 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) [2023-01-28 02:16:38,122 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 246 flow. Second operand 6 states and 604 transitions. [2023-01-28 02:16:38,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 128 transitions, 880 flow [2023-01-28 02:16:38,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 128 transitions, 844 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-01-28 02:16:38,133 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 296 flow [2023-01-28 02:16:38,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=296, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-01-28 02:16:38,134 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 16 predicate places. [2023-01-28 02:16:38,134 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 296 flow [2023-01-28 02:16:38,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 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) [2023-01-28 02:16:38,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:38,135 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] [2023-01-28 02:16:38,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 02:16:38,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-01-28 02:16:38,344 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:38,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:38,344 INFO L85 PathProgramCache]: Analyzing trace with hash -115641799, now seen corresponding path program 1 times [2023-01-28 02:16:38,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:38,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286378661] [2023-01-28 02:16:38,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:38,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:38,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286378661] [2023-01-28 02:16:38,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286378661] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:16:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479325031] [2023-01-28 02:16:38,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:38,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:16:38,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:16:38,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:16:38,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 02:16:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:38,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 02:16:38,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:16:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:38,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:16:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:38,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479325031] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:16:38,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:16:38,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-28 02:16:38,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165677015] [2023-01-28 02:16:38,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:16:38,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 02:16:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:16:38,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 02:16:38,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-01-28 02:16:38,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:16:38,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 296 flow. Second operand has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 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) [2023-01-28 02:16:38,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:16:38,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:16:38,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:16:39,006 INFO L130 PetriNetUnfolder]: 2267/3107 cut-off events. [2023-01-28 02:16:39,006 INFO L131 PetriNetUnfolder]: For 8064/8064 co-relation queries the response was YES. [2023-01-28 02:16:39,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12686 conditions, 3107 events. 2267/3107 cut-off events. For 8064/8064 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11984 event pairs, 505 based on Foata normal form. 76/3183 useless extension candidates. Maximal degree in co-relation 6978. Up to 1779 conditions per place. [2023-01-28 02:16:39,024 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 114 selfloop transitions, 14 changer transitions 3/131 dead transitions. [2023-01-28 02:16:39,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 131 transitions, 935 flow [2023-01-28 02:16:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 02:16:39,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 02:16:39,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 604 transitions. [2023-01-28 02:16:39,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44542772861356933 [2023-01-28 02:16:39,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 604 transitions. [2023-01-28 02:16:39,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 604 transitions. [2023-01-28 02:16:39,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:16:39,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 604 transitions. [2023-01-28 02:16:39,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 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) [2023-01-28 02:16:39,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 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) [2023-01-28 02:16:39,030 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 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) [2023-01-28 02:16:39,030 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 296 flow. Second operand 6 states and 604 transitions. [2023-01-28 02:16:39,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 131 transitions, 935 flow [2023-01-28 02:16:39,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 131 transitions, 924 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 02:16:39,045 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 348 flow [2023-01-28 02:16:39,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=348, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2023-01-28 02:16:39,046 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 22 predicate places. [2023-01-28 02:16:39,046 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 348 flow [2023-01-28 02:16:39,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 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) [2023-01-28 02:16:39,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:16:39,046 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] [2023-01-28 02:16:39,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 02:16:39,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:16:39,252 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:16:39,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:16:39,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1691541935, now seen corresponding path program 1 times [2023-01-28 02:16:39,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:16:39,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445775178] [2023-01-28 02:16:39,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:39,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:16:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:39,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:16:39,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445775178] [2023-01-28 02:16:39,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445775178] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:16:39,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440071186] [2023-01-28 02:16:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:16:39,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:16:39,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:16:39,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:16:39,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 02:16:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:16:40,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 16 conjunts are in the unsatisfiable core [2023-01-28 02:16:40,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:16:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:16:48,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:17:00,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:17:00,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440071186] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:17:00,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:17:00,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2023-01-28 02:17:00,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968407228] [2023-01-28 02:17:00,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:17:00,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-28 02:17:00,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:17:00,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-28 02:17:00,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=116, Unknown=6, NotChecked=0, Total=156 [2023-01-28 02:17:00,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:17:00,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 348 flow. Second operand has 13 states, 13 states have (on average 89.0) internal successors, (1157), 13 states have internal predecessors, (1157), 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) [2023-01-28 02:17:00,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:17:00,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:17:00,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:17:02,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:09,133 WARN L222 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 68 DAG size of output: 31 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 02:17:12,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:14,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:16,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:23,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:26,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:28,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:30,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:32,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:36,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:38,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:42,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:44,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:48,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:50,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:53,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:55,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:57,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:17:59,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:01,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:03,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:05,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:08,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:10,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:12,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:18,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:21,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:23,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:26,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:28,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:31,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:33,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:35,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:38,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:40,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:42,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:18:42,366 INFO L130 PetriNetUnfolder]: 3161/4327 cut-off events. [2023-01-28 02:18:42,366 INFO L131 PetriNetUnfolder]: For 15732/15732 co-relation queries the response was YES. [2023-01-28 02:18:42,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19260 conditions, 4327 events. 3161/4327 cut-off events. For 15732/15732 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 17741 event pairs, 629 based on Foata normal form. 2/4329 useless extension candidates. Maximal degree in co-relation 16271. Up to 3231 conditions per place. [2023-01-28 02:18:42,402 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 142 selfloop transitions, 41 changer transitions 5/188 dead transitions. [2023-01-28 02:18:42,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 188 transitions, 1442 flow [2023-01-28 02:18:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 02:18:42,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 02:18:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1091 transitions. [2023-01-28 02:18:42,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43885760257441675 [2023-01-28 02:18:42,406 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1091 transitions. [2023-01-28 02:18:42,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1091 transitions. [2023-01-28 02:18:42,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:18:42,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1091 transitions. [2023-01-28 02:18:42,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 99.18181818181819) internal successors, (1091), 11 states have internal predecessors, (1091), 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) [2023-01-28 02:18:42,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 226.0) internal successors, (2712), 12 states have internal predecessors, (2712), 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) [2023-01-28 02:18:42,411 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 226.0) internal successors, (2712), 12 states have internal predecessors, (2712), 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) [2023-01-28 02:18:42,411 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 348 flow. Second operand 11 states and 1091 transitions. [2023-01-28 02:18:42,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 188 transitions, 1442 flow [2023-01-28 02:18:42,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 188 transitions, 1377 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-01-28 02:18:42,425 INFO L231 Difference]: Finished difference. Result has 69 places, 83 transitions, 696 flow [2023-01-28 02:18:42,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=696, PETRI_PLACES=69, PETRI_TRANSITIONS=83} [2023-01-28 02:18:42,426 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2023-01-28 02:18:42,426 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 83 transitions, 696 flow [2023-01-28 02:18:42,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 89.0) internal successors, (1157), 13 states have internal predecessors, (1157), 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) [2023-01-28 02:18:42,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:18:42,427 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] [2023-01-28 02:18:42,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 02:18:42,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:18:42,632 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:18:42,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:18:42,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1719575699, now seen corresponding path program 2 times [2023-01-28 02:18:42,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:18:42,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610415253] [2023-01-28 02:18:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:18:42,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:18:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:18:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:18:43,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:18:43,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610415253] [2023-01-28 02:18:43,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610415253] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:18:43,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565492027] [2023-01-28 02:18:43,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 02:18:43,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:18:43,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:18:43,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:18:43,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 02:18:48,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 02:18:48,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 02:18:48,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2023-01-28 02:18:48,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:19:36,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:19:36,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:19:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:19:47,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565492027] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:19:47,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:19:47,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2023-01-28 02:19:47,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85446790] [2023-01-28 02:19:47,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:19:47,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-28 02:19:47,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:19:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-28 02:19:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=155, Unknown=13, NotChecked=0, Total=240 [2023-01-28 02:19:47,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:19:47,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 83 transitions, 696 flow. Second operand has 16 states, 16 states have (on average 88.0625) internal successors, (1409), 16 states have internal predecessors, (1409), 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) [2023-01-28 02:19:47,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:19:47,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:19:47,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:20:26,696 WARN L222 SmtUtils]: Spent 34.87s on a formula simplification. DAG size of input: 84 DAG size of output: 78 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 02:20:28,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:31,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:33,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:35,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:37,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:39,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:46,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:48,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:50,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:53,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:56,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:20:59,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:02,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:04,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:06,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:08,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:10,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:12,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:15,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:16,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:17,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:19,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:21,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:32,309 WARN L222 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 54 DAG size of output: 49 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 02:21:34,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:36,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:38,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:41,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:43,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:45,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:47,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:49,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:51,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:54,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:56,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:21:58,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:00,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:03,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:12,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:14,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:16,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:19,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:21,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:23,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:25,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:31,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:33,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:35,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:37,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:40,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:43,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:46,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:48,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:50,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:52,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:54,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:57,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:22:59,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:01,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:03,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:05,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:08,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:10,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:12,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:14,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:17,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:19,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:21,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:24,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:26,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:28,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:23:30,345 INFO L130 PetriNetUnfolder]: 5232/7225 cut-off events. [2023-01-28 02:23:30,345 INFO L131 PetriNetUnfolder]: For 28921/28921 co-relation queries the response was YES. [2023-01-28 02:23:30,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35072 conditions, 7225 events. 5232/7225 cut-off events. For 28921/28921 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 33388 event pairs, 383 based on Foata normal form. 55/7280 useless extension candidates. Maximal degree in co-relation 34366. Up to 4590 conditions per place. [2023-01-28 02:23:30,454 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 191 selfloop transitions, 111 changer transitions 19/321 dead transitions. [2023-01-28 02:23:30,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 321 transitions, 2795 flow [2023-01-28 02:23:30,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-01-28 02:23:30,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-01-28 02:23:30,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1491 transitions. [2023-01-28 02:23:30,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398230088495575 [2023-01-28 02:23:30,459 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1491 transitions. [2023-01-28 02:23:30,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1491 transitions. [2023-01-28 02:23:30,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:23:30,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1491 transitions. [2023-01-28 02:23:30,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 99.4) internal successors, (1491), 15 states have internal predecessors, (1491), 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) [2023-01-28 02:23:30,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 226.0) internal successors, (3616), 16 states have internal predecessors, (3616), 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) [2023-01-28 02:23:30,465 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 226.0) internal successors, (3616), 16 states have internal predecessors, (3616), 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) [2023-01-28 02:23:30,465 INFO L175 Difference]: Start difference. First operand has 69 places, 83 transitions, 696 flow. Second operand 15 states and 1491 transitions. [2023-01-28 02:23:30,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 321 transitions, 2795 flow [2023-01-28 02:23:30,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 321 transitions, 2686 flow, removed 50 selfloop flow, removed 1 redundant places. [2023-01-28 02:23:30,509 INFO L231 Difference]: Finished difference. Result has 93 places, 174 transitions, 1874 flow [2023-01-28 02:23:30,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1874, PETRI_PLACES=93, PETRI_TRANSITIONS=174} [2023-01-28 02:23:30,510 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 59 predicate places. [2023-01-28 02:23:30,510 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 174 transitions, 1874 flow [2023-01-28 02:23:30,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 88.0625) internal successors, (1409), 16 states have internal predecessors, (1409), 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) [2023-01-28 02:23:30,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:23:30,510 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] [2023-01-28 02:23:30,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 02:23:30,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:23:30,717 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:23:30,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:23:30,717 INFO L85 PathProgramCache]: Analyzing trace with hash 428160059, now seen corresponding path program 1 times [2023-01-28 02:23:30,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:23:30,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717460373] [2023-01-28 02:23:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:23:30,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:23:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:23:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:23:31,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:23:31,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717460373] [2023-01-28 02:23:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717460373] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:23:31,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94956193] [2023-01-28 02:23:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:23:31,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:23:31,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:23:31,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:23:31,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 02:23:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:23:31,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2023-01-28 02:23:31,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:24:04,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:24:04,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:24:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:24:19,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94956193] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:24:19,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:24:19,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2023-01-28 02:24:19,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853655558] [2023-01-28 02:24:19,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:24:19,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-28 02:24:19,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:24:19,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-28 02:24:19,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=166, Unknown=15, NotChecked=0, Total=240 [2023-01-28 02:24:19,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:24:19,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 174 transitions, 1874 flow. Second operand has 16 states, 16 states have (on average 87.9375) internal successors, (1407), 16 states have internal predecessors, (1407), 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) [2023-01-28 02:24:19,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:24:19,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:24:19,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:24:47,166 WARN L222 SmtUtils]: Spent 25.50s on a formula simplification. DAG size of input: 101 DAG size of output: 61 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 02:24:48,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:24:51,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:24:58,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:00,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:02,679 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse2 (mod c_~x1~0 4294967296)) (.cse7 (mod c_~x3~0 4294967296)) (.cse0 (mod (div (- c_~x1~0) (- 4)) 4294967296)) (.cse1 (mod c_~n~0 4294967296))) (and (= .cse0 (mod c_~x2~0 4294967296)) (<= .cse1 .cse2) (let ((.cse4 (+ .cse2 1))) (or (< (let ((.cse3 (mod c_~x1~0 1073741824))) (+ (* .cse3 4) (* (div .cse3 1073741824) 4294967296))) .cse4) (< (* (mod c_~x2~0 1073741824) 4) .cse4) (let ((.cse6 (* 1073741824 (div (* c_~x2~0 4) 4294967296))) (.cse5 (+ c_~x2~0 (* 1073741824 (div (* c_~x1~0 4) 4294967296))))) (and (= (+ (* 4294967296 (div c_~x3~0 4294967296)) c_~x4~0) (+ c_~x3~0 (* (div c_~x4~0 4294967296) 4294967296))) (< .cse5 (+ .cse6 c_~x1~0 1)) (<= (+ .cse6 c_~x1~0) .cse5))))) (= .cse7 (mod c_~x4~0 4294967296)) (< 0 .cse7) (= (mod (* c_~x1~0 3) 4) 0) (< .cse0 .cse1))) is different from false [2023-01-28 02:25:04,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:07,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:08,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:11,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:13,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:15,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:17,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:20,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:22,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:25,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:27,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:29,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:47,480 WARN L222 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 63 DAG size of output: 57 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 02:25:50,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:25:59,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:01,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:03,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:05,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:07,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:09,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:11,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:13,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:16,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:18,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:19,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:21,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:23,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:25,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:30,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:32,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:35,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:42,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:44,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:46,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:48,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:50,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:52,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:54,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:26:56,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:00,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:01,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:03,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:05,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:07,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:09,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:12,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:14,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:15,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:17,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:19,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:22,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:24,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:26,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:28,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:31,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:33,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:35,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:37,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:39,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:41,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:44,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:47,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:48,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:50,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:52,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:54,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:27:57,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:00,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:02,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:04,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:06,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:10,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:13,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:15,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:19,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:20,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:24,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:26,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:28,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:29,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:28:30,147 INFO L130 PetriNetUnfolder]: 6420/8862 cut-off events. [2023-01-28 02:28:30,147 INFO L131 PetriNetUnfolder]: For 80890/80890 co-relation queries the response was YES. [2023-01-28 02:28:30,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57149 conditions, 8862 events. 6420/8862 cut-off events. For 80890/80890 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 42269 event pairs, 552 based on Foata normal form. 32/8894 useless extension candidates. Maximal degree in co-relation 55669. Up to 7209 conditions per place. [2023-01-28 02:28:30,198 INFO L137 encePairwiseOnDemand]: 207/226 looper letters, 316 selfloop transitions, 101 changer transitions 5/422 dead transitions. [2023-01-28 02:28:30,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 422 transitions, 4683 flow [2023-01-28 02:28:30,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-01-28 02:28:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-01-28 02:28:30,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1770 transitions. [2023-01-28 02:28:30,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4351032448377581 [2023-01-28 02:28:30,202 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1770 transitions. [2023-01-28 02:28:30,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1770 transitions. [2023-01-28 02:28:30,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:28:30,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1770 transitions. [2023-01-28 02:28:30,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 98.33333333333333) internal successors, (1770), 18 states have internal predecessors, (1770), 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) [2023-01-28 02:28:30,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 226.0) internal successors, (4294), 19 states have internal predecessors, (4294), 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) [2023-01-28 02:28:30,210 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 226.0) internal successors, (4294), 19 states have internal predecessors, (4294), 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) [2023-01-28 02:28:30,210 INFO L175 Difference]: Start difference. First operand has 93 places, 174 transitions, 1874 flow. Second operand 18 states and 1770 transitions. [2023-01-28 02:28:30,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 422 transitions, 4683 flow [2023-01-28 02:28:30,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 422 transitions, 4403 flow, removed 132 selfloop flow, removed 2 redundant places. [2023-01-28 02:28:30,370 INFO L231 Difference]: Finished difference. Result has 119 places, 266 transitions, 2885 flow [2023-01-28 02:28:30,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1634, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2885, PETRI_PLACES=119, PETRI_TRANSITIONS=266} [2023-01-28 02:28:30,370 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 85 predicate places. [2023-01-28 02:28:30,371 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 266 transitions, 2885 flow [2023-01-28 02:28:30,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 87.9375) internal successors, (1407), 16 states have internal predecessors, (1407), 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) [2023-01-28 02:28:30,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:28:30,371 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] [2023-01-28 02:28:30,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 02:28:30,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:28:30,577 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 02:28:30,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:28:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2065491341, now seen corresponding path program 2 times [2023-01-28 02:28:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:28:30,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601125003] [2023-01-28 02:28:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:28:30,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:28:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:28:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:28:30,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:28:30,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601125003] [2023-01-28 02:28:30,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601125003] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 02:28:30,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810347814] [2023-01-28 02:28:30,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 02:28:30,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:28:30,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:28:30,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 02:28:30,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 02:30:00,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 02:30:00,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 02:30:00,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2023-01-28 02:30:00,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 02:30:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:30:11,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 02:30:12,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:30:12,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810347814] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 02:30:12,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 02:30:12,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-01-28 02:30:12,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974694234] [2023-01-28 02:30:12,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 02:30:12,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-01-28 02:30:12,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:30:12,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-01-28 02:30:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=147, Unknown=1, NotChecked=0, Total=210 [2023-01-28 02:30:12,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 226 [2023-01-28 02:30:12,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 266 transitions, 2885 flow. Second operand has 15 states, 15 states have (on average 87.53333333333333) internal successors, (1313), 15 states have internal predecessors, (1313), 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) [2023-01-28 02:30:12,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:30:12,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 226 [2023-01-28 02:30:12,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:30:20,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:23,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:27,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:35,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:38,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:39,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:41,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:45,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:46,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:48,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:51,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:54,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:57,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:30:58,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:31:01,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 02:31:03,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-01-28 02:31:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-28 02:31:03,369 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 02:31:03,375 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 02:31:03,375 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 02:31:03,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-28 02:31:03,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 02:31:03,576 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 84/226 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43611 conditions, 5863 events (4458/5862 cut-off events. For 86757/86757 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 27393 event pairs, 224 based on Foata normal form. 14/6313 useless extension candidates. Maximal degree in co-relation 43122. Up to 4061 conditions per place.). [2023-01-28 02:31:03,577 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-01-28 02:31:03,578 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 02:31:03,578 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 02:31:03,578 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-28 02:31:03,578 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1] [2023-01-28 02:31:03,580 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 02:31:03,580 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 02:31:03,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:31:03 BasicIcfg [2023-01-28 02:31:03,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 02:31:03,582 INFO L158 Benchmark]: Toolchain (without parser) took 873368.06ms. Allocated memory was 465.6MB in the beginning and 675.3MB in the end (delta: 209.7MB). Free memory was 415.4MB in the beginning and 390.9MB in the end (delta: 24.6MB). Peak memory consumption was 472.8MB. Max. memory is 16.0GB. [2023-01-28 02:31:03,582 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 329.3MB. Free memory is still 277.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 02:31:03,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.16ms. Allocated memory is still 465.6MB. Free memory was 415.1MB in the beginning and 403.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 02:31:03,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.95ms. Allocated memory is still 465.6MB. Free memory was 403.1MB in the beginning and 401.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:31:03,582 INFO L158 Benchmark]: Boogie Preprocessor took 27.07ms. Allocated memory is still 465.6MB. Free memory was 401.1MB in the beginning and 399.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:31:03,582 INFO L158 Benchmark]: RCFGBuilder took 459.71ms. Allocated memory is still 465.6MB. Free memory was 399.7MB in the beginning and 384.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 02:31:03,582 INFO L158 Benchmark]: TraceAbstraction took 872627.48ms. Allocated memory was 465.6MB in the beginning and 675.3MB in the end (delta: 209.7MB). Free memory was 384.0MB in the beginning and 390.9MB in the end (delta: -6.9MB). Peak memory consumption was 441.3MB. Max. memory is 16.0GB. [2023-01-28 02:31:03,583 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 329.3MB. Free memory is still 277.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 213.16ms. Allocated memory is still 465.6MB. Free memory was 415.1MB in the beginning and 403.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.95ms. Allocated memory is still 465.6MB. Free memory was 403.1MB in the beginning and 401.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.07ms. Allocated memory is still 465.6MB. Free memory was 401.1MB in the beginning and 399.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 459.71ms. Allocated memory is still 465.6MB. Free memory was 399.7MB in the beginning and 384.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 872627.48ms. Allocated memory was 465.6MB in the beginning and 675.3MB in the end (delta: 209.7MB). Free memory was 384.0MB in the beginning and 390.9MB in the end (delta: -6.9MB). Peak memory consumption was 441.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 114 PlacesBefore, 34 PlacesAfterwards, 111 TransitionsBefore, 25 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 6 FixpointIterations, 50 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 99 TotalNumberOfCompositions, 1649 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1649, independent: 1649, independent conditional: 0, independent unconditional: 1649, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 814, independent: 814, independent conditional: 0, independent unconditional: 814, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1649, independent: 835, independent conditional: 0, independent unconditional: 835, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 814, unknown conditional: 0, unknown unconditional: 814] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 84/226 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43611 conditions, 5863 events (4458/5862 cut-off events. For 86757/86757 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 27393 event pairs, 224 based on Foata normal form. 14/6313 useless extension candidates. Maximal degree in co-relation 43122. Up to 4061 conditions per place.). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 84/226 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43611 conditions, 5863 events (4458/5862 cut-off events. For 86757/86757 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 27393 event pairs, 224 based on Foata normal form. 14/6313 useless extension candidates. Maximal degree in co-relation 43122. Up to 4061 conditions per place.). - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 84/226 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43611 conditions, 5863 events (4458/5862 cut-off events. For 86757/86757 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 27393 event pairs, 224 based on Foata normal form. 14/6313 useless extension candidates. Maximal degree in co-relation 43122. Up to 4061 conditions per place.). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 84/226 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43611 conditions, 5863 events (4458/5862 cut-off events. For 86757/86757 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 27393 event pairs, 224 based on Foata normal form. 14/6313 useless extension candidates. Maximal degree in co-relation 43122. Up to 4061 conditions per place.). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 84/226 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43611 conditions, 5863 events (4458/5862 cut-off events. For 86757/86757 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 27393 event pairs, 224 based on Foata normal form. 14/6313 useless extension candidates. Maximal degree in co-relation 43122. Up to 4061 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 146 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 872.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 627.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 171 mSolverCounterUnknown, 947 SdHoareTripleChecker+Valid, 482.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 947 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 479.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 152 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3663 IncrementalHoareTripleChecker+Invalid, 4078 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 0 mSDtfsCounter, 3663 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 374 GetRequests, 258 SyntacticMatches, 14 SemanticMatches, 102 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 252.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2885occurred in iteration=10, InterpolantAutomatonStates: 77, 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: 0.1s SsaConstructionTime, 97.6s SatisfiabilityAnalysisTime, 142.2s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 20368 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1412 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 25 InterpolantComputations, 4 PerfectInterpolantSequences, 3/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown