/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/queue_longest.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:09:40,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:09:40,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:09:40,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:09:40,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:09:40,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:09:40,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:09:40,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:09:40,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:09:40,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:09:40,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:09:40,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:09:40,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:09:40,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:09:40,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:09:40,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:09:40,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:09:40,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:09:40,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:09:40,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:09:40,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:09:40,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:09:40,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:09:40,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:09:40,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:09:40,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:09:40,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:09:40,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:09:40,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:09:40,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:09:40,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:09:40,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:09:40,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:09:40,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:09:40,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:09:40,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:09:40,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:09:40,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:09:40,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:09:40,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:09:40,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:09:40,545 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-SemanticLbe.epf [2022-12-05 20:09:40,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:09:40,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:09:40,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:09:40,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:09:40,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:09:40,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:09:40,575 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:09:40,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:09:40,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:09:40,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:09:40,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:09:40,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:09:40,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:09:40,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:09:40,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:09:40,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:09:40,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:09:40,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:09:40,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:09:40,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:09:40,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:09:40,875 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:09:40,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longest.i [2022-12-05 20:09:41,786 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:09:41,971 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:09:41,971 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2022-12-05 20:09:41,997 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1450ae38/89ccf3834e51415e8f735a35c0840d1a/FLAG28cd98242 [2022-12-05 20:09:42,008 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1450ae38/89ccf3834e51415e8f735a35c0840d1a [2022-12-05 20:09:42,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:09:42,012 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:09:42,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:09:42,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:09:42,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:09:42,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73abd825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42, skipping insertion in model container [2022-12-05 20:09:42,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:09:42,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:09:42,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43296,43309] [2022-12-05 20:09:42,340 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43503,43516] [2022-12-05 20:09:42,342 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43783,43796] [2022-12-05 20:09:42,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:09:42,353 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:09:42,405 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43296,43309] [2022-12-05 20:09:42,406 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43503,43516] [2022-12-05 20:09:42,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43783,43796] [2022-12-05 20:09:42,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:09:42,462 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:09:42,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42 WrapperNode [2022-12-05 20:09:42,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:09:42,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:09:42,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:09:42,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:09:42,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,526 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 241 [2022-12-05 20:09:42,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:09:42,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:09:42,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:09:42,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:09:42,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,551 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:09:42,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:09:42,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:09:42,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:09:42,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (1/1) ... [2022-12-05 20:09:42,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:09:42,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:09:42,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:09:42,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:09:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-05 20:09:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-05 20:09:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:09:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:09:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:09:42,611 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:09:42,733 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:09:42,734 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:09:43,036 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:09:43,042 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:09:43,042 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-05 20:09:43,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:09:43 BoogieIcfgContainer [2022-12-05 20:09:43,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:09:43,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:09:43,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:09:43,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:09:43,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:09:42" (1/3) ... [2022-12-05 20:09:43,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125d47b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:09:43, skipping insertion in model container [2022-12-05 20:09:43,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:09:42" (2/3) ... [2022-12-05 20:09:43,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125d47b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:09:43, skipping insertion in model container [2022-12-05 20:09:43,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:09:43" (3/3) ... [2022-12-05 20:09:43,052 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2022-12-05 20:09:43,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:09:43,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 20:09:43,067 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:09:43,202 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:09:43,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 256 transitions, 528 flow [2022-12-05 20:09:43,327 INFO L130 PetriNetUnfolder]: 15/254 cut-off events. [2022-12-05 20:09:43,328 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:09:43,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 254 events. 15/254 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 363 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 183. Up to 2 conditions per place. [2022-12-05 20:09:43,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 256 transitions, 528 flow [2022-12-05 20:09:43,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 245 transitions, 499 flow [2022-12-05 20:09:43,344 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:09:43,366 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 245 transitions, 499 flow [2022-12-05 20:09:43,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 245 transitions, 499 flow [2022-12-05 20:09:43,419 INFO L130 PetriNetUnfolder]: 15/245 cut-off events. [2022-12-05 20:09:43,419 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:09:43,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 245 events. 15/245 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 332 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 183. Up to 2 conditions per place. [2022-12-05 20:09:43,432 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 245 transitions, 499 flow [2022-12-05 20:09:43,432 INFO L188 LiptonReduction]: Number of co-enabled transitions 15600 [2022-12-05 20:09:50,938 INFO L203 LiptonReduction]: Total number of compositions: 192 [2022-12-05 20:09:50,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:09:50,952 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;@2fc4bcc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:09:50,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-05 20:09:50,953 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-05 20:09:50,953 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:09:50,953 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:50,954 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-05 20:09:50,954 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 4 more)] === [2022-12-05 20:09:50,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:50,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1001, now seen corresponding path program 1 times [2022-12-05 20:09:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:50,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275964977] [2022-12-05 20:09:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:50,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:51,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:51,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275964977] [2022-12-05 20:09:51,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275964977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:51,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:51,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-05 20:09:51,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565852627] [2022-12-05 20:09:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:51,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:09:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:09:51,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:09:51,076 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 72 [2022-12-05 20:09:51,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 72 transitions, 153 flow. Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:51,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:51,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 72 [2022-12-05 20:09:51,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:51,339 INFO L130 PetriNetUnfolder]: 1465/2555 cut-off events. [2022-12-05 20:09:51,339 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-05 20:09:51,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4904 conditions, 2555 events. 1465/2555 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12526 event pairs, 1167 based on Foata normal form. 28/2017 useless extension candidates. Maximal degree in co-relation 4773. Up to 2271 conditions per place. [2022-12-05 20:09:51,349 INFO L137 encePairwiseOnDemand]: 66/72 looper letters, 54 selfloop transitions, 0 changer transitions 0/66 dead transitions. [2022-12-05 20:09:51,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 249 flow [2022-12-05 20:09:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:09:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:09:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2022-12-05 20:09:51,357 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-05 20:09:51,358 INFO L175 Difference]: Start difference. First operand has 68 places, 72 transitions, 153 flow. Second operand 2 states and 84 transitions. [2022-12-05 20:09:51,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 249 flow [2022-12-05 20:09:51,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 66 transitions, 244 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:09:51,362 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 136 flow [2022-12-05 20:09:51,363 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=136, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2022-12-05 20:09:51,365 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, -5 predicate places. [2022-12-05 20:09:51,365 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 136 flow [2022-12-05 20:09:51,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:51,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:51,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:51,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:09:51,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:51,367 INFO L85 PathProgramCache]: Analyzing trace with hash 21675408, now seen corresponding path program 1 times [2022-12-05 20:09:51,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:51,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931346583] [2022-12-05 20:09:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:51,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:51,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931346583] [2022-12-05 20:09:51,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931346583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:51,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:51,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:09:51,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850845044] [2022-12-05 20:09:51,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:51,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:09:51,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:51,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:09:51,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:09:51,576 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 72 [2022-12-05 20:09:51,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:51,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:51,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 72 [2022-12-05 20:09:51,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:51,794 INFO L130 PetriNetUnfolder]: 1308/2308 cut-off events. [2022-12-05 20:09:51,794 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 20:09:51,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4521 conditions, 2308 events. 1308/2308 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9614 event pairs, 668 based on Foata normal form. 62/1833 useless extension candidates. Maximal degree in co-relation 4518. Up to 1123 conditions per place. [2022-12-05 20:09:51,801 INFO L137 encePairwiseOnDemand]: 68/72 looper letters, 74 selfloop transitions, 3 changer transitions 5/92 dead transitions. [2022-12-05 20:09:51,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 92 transitions, 355 flow [2022-12-05 20:09:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:09:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:09:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2022-12-05 20:09:51,804 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5231481481481481 [2022-12-05 20:09:51,804 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 136 flow. Second operand 3 states and 113 transitions. [2022-12-05 20:09:51,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 92 transitions, 355 flow [2022-12-05 20:09:51,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 92 transitions, 355 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:09:51,808 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 143 flow [2022-12-05 20:09:51,808 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2022-12-05 20:09:51,808 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, -2 predicate places. [2022-12-05 20:09:51,809 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 143 flow [2022-12-05 20:09:51,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:51,812 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:51,812 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:51,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:09:51,812 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:51,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash 466572166, now seen corresponding path program 1 times [2022-12-05 20:09:51,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:51,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600842089] [2022-12-05 20:09:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:52,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:52,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600842089] [2022-12-05 20:09:52,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600842089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:52,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:52,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:09:52,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260953243] [2022-12-05 20:09:52,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:52,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:09:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:09:52,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:09:52,422 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:09:52,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 143 flow. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:52,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:52,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:09:52,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:53,336 INFO L130 PetriNetUnfolder]: 1321/2310 cut-off events. [2022-12-05 20:09:53,336 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-12-05 20:09:53,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4602 conditions, 2310 events. 1321/2310 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9432 event pairs, 975 based on Foata normal form. 12/1842 useless extension candidates. Maximal degree in co-relation 4597. Up to 2071 conditions per place. [2022-12-05 20:09:53,344 INFO L137 encePairwiseOnDemand]: 64/72 looper letters, 56 selfloop transitions, 9 changer transitions 9/84 dead transitions. [2022-12-05 20:09:53,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 335 flow [2022-12-05 20:09:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:09:53,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:09:53,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2022-12-05 20:09:53,346 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2569444444444444 [2022-12-05 20:09:53,346 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 143 flow. Second operand 8 states and 148 transitions. [2022-12-05 20:09:53,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 335 flow [2022-12-05 20:09:53,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 84 transitions, 332 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:09:53,348 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 202 flow [2022-12-05 20:09:53,348 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=202, PETRI_PLACES=74, PETRI_TRANSITIONS=71} [2022-12-05 20:09:53,349 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 6 predicate places. [2022-12-05 20:09:53,349 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 202 flow [2022-12-05 20:09:53,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:53,349 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:53,349 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:53,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:09:53,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:53,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:53,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1669633027, now seen corresponding path program 1 times [2022-12-05 20:09:53,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:53,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972613277] [2022-12-05 20:09:53,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:53,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:53,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:53,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972613277] [2022-12-05 20:09:53,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972613277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:53,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:53,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:09:53,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35331752] [2022-12-05 20:09:53,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:53,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:09:53,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:53,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:09:53,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:09:53,873 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:09:53,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 202 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:53,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:53,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:09:53,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:54,266 INFO L130 PetriNetUnfolder]: 1304/2279 cut-off events. [2022-12-05 20:09:54,266 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2022-12-05 20:09:54,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4644 conditions, 2279 events. 1304/2279 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9267 event pairs, 256 based on Foata normal form. 11/1826 useless extension candidates. Maximal degree in co-relation 4633. Up to 1820 conditions per place. [2022-12-05 20:09:54,275 INFO L137 encePairwiseOnDemand]: 65/72 looper letters, 78 selfloop transitions, 9 changer transitions 8/105 dead transitions. [2022-12-05 20:09:54,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 105 transitions, 466 flow [2022-12-05 20:09:54,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:09:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:09:54,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2022-12-05 20:09:54,277 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30753968253968256 [2022-12-05 20:09:54,277 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 202 flow. Second operand 7 states and 155 transitions. [2022-12-05 20:09:54,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 105 transitions, 466 flow [2022-12-05 20:09:54,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 105 transitions, 466 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:09:54,279 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 210 flow [2022-12-05 20:09:54,279 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=210, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2022-12-05 20:09:54,279 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 10 predicate places. [2022-12-05 20:09:54,280 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 210 flow [2022-12-05 20:09:54,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:54,280 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:54,280 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:54,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:09:54,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:54,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:54,280 INFO L85 PathProgramCache]: Analyzing trace with hash -825444950, now seen corresponding path program 1 times [2022-12-05 20:09:54,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:54,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557416999] [2022-12-05 20:09:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:54,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:54,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:54,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:54,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557416999] [2022-12-05 20:09:54,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557416999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:54,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:54,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 20:09:54,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690393796] [2022-12-05 20:09:54,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:54,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-05 20:09:54,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:54,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-05 20:09:54,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-05 20:09:54,727 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:09:54,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 210 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:54,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:54,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:09:54,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:55,156 INFO L130 PetriNetUnfolder]: 1287/2250 cut-off events. [2022-12-05 20:09:55,156 INFO L131 PetriNetUnfolder]: For 164/164 co-relation queries the response was YES. [2022-12-05 20:09:55,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4622 conditions, 2250 events. 1287/2250 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9158 event pairs, 957 based on Foata normal form. 0/1791 useless extension candidates. Maximal degree in co-relation 4610. Up to 2021 conditions per place. [2022-12-05 20:09:55,166 INFO L137 encePairwiseOnDemand]: 60/72 looper letters, 58 selfloop transitions, 18 changer transitions 1/87 dead transitions. [2022-12-05 20:09:55,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 87 transitions, 409 flow [2022-12-05 20:09:55,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:09:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:09:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 168 transitions. [2022-12-05 20:09:55,168 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.23333333333333334 [2022-12-05 20:09:55,168 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 210 flow. Second operand 10 states and 168 transitions. [2022-12-05 20:09:55,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 87 transitions, 409 flow [2022-12-05 20:09:55,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 87 transitions, 391 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 20:09:55,170 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 283 flow [2022-12-05 20:09:55,170 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=283, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2022-12-05 20:09:55,171 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 16 predicate places. [2022-12-05 20:09:55,171 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 283 flow [2022-12-05 20:09:55,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:55,171 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:55,171 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:55,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:09:55,172 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:55,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1671670803, now seen corresponding path program 1 times [2022-12-05 20:09:55,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:55,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486843447] [2022-12-05 20:09:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:55,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:55,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:55,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486843447] [2022-12-05 20:09:55,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486843447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:55,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:55,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-05 20:09:55,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730489718] [2022-12-05 20:09:55,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:55,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-05 20:09:55,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:55,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-05 20:09:55,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-05 20:09:55,601 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:09:55,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 283 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:55,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:55,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:09:55,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:56,230 INFO L130 PetriNetUnfolder]: 1452/2526 cut-off events. [2022-12-05 20:09:56,230 INFO L131 PetriNetUnfolder]: For 208/208 co-relation queries the response was YES. [2022-12-05 20:09:56,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5354 conditions, 2526 events. 1452/2526 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 10724 event pairs, 314 based on Foata normal form. 0/2005 useless extension candidates. Maximal degree in co-relation 5338. Up to 1808 conditions per place. [2022-12-05 20:09:56,241 INFO L137 encePairwiseOnDemand]: 60/72 looper letters, 103 selfloop transitions, 22 changer transitions 11/146 dead transitions. [2022-12-05 20:09:56,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 146 transitions, 716 flow [2022-12-05 20:09:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:09:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:09:56,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 218 transitions. [2022-12-05 20:09:56,243 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30277777777777776 [2022-12-05 20:09:56,243 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 283 flow. Second operand 10 states and 218 transitions. [2022-12-05 20:09:56,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 146 transitions, 716 flow [2022-12-05 20:09:56,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 146 transitions, 688 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-12-05 20:09:56,247 INFO L231 Difference]: Finished difference. Result has 91 places, 82 transitions, 344 flow [2022-12-05 20:09:56,247 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=91, PETRI_TRANSITIONS=82} [2022-12-05 20:09:56,249 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 23 predicate places. [2022-12-05 20:09:56,249 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 82 transitions, 344 flow [2022-12-05 20:09:56,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:56,249 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:56,249 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:56,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:09:56,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:56,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash 180968037, now seen corresponding path program 2 times [2022-12-05 20:09:56,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:56,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719297496] [2022-12-05 20:09:56,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:56,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:56,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:56,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719297496] [2022-12-05 20:09:56,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719297496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:56,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:56,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-05 20:09:56,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538062950] [2022-12-05 20:09:56,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:56,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-05 20:09:56,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:56,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-05 20:09:56,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-05 20:09:56,853 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:09:56,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 82 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:56,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:56,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:09:56,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:57,480 INFO L130 PetriNetUnfolder]: 1493/2625 cut-off events. [2022-12-05 20:09:57,480 INFO L131 PetriNetUnfolder]: For 325/325 co-relation queries the response was YES. [2022-12-05 20:09:57,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5740 conditions, 2625 events. 1493/2625 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 11448 event pairs, 290 based on Foata normal form. 0/2083 useless extension candidates. Maximal degree in co-relation 5721. Up to 1614 conditions per place. [2022-12-05 20:09:57,492 INFO L137 encePairwiseOnDemand]: 61/72 looper letters, 101 selfloop transitions, 23 changer transitions 11/144 dead transitions. [2022-12-05 20:09:57,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 144 transitions, 755 flow [2022-12-05 20:09:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:09:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:09:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 213 transitions. [2022-12-05 20:09:57,494 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.29583333333333334 [2022-12-05 20:09:57,494 INFO L175 Difference]: Start difference. First operand has 91 places, 82 transitions, 344 flow. Second operand 10 states and 213 transitions. [2022-12-05 20:09:57,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 144 transitions, 755 flow [2022-12-05 20:09:57,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 144 transitions, 720 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-12-05 20:09:57,500 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 367 flow [2022-12-05 20:09:57,500 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=367, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2022-12-05 20:09:57,500 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 25 predicate places. [2022-12-05 20:09:57,500 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 367 flow [2022-12-05 20:09:57,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:57,501 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:57,501 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:57,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:09:57,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:57,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:57,502 INFO L85 PathProgramCache]: Analyzing trace with hash 752695135, now seen corresponding path program 1 times [2022-12-05 20:09:57,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:57,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42645311] [2022-12-05 20:09:57,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:57,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:57,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:57,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42645311] [2022-12-05 20:09:57,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42645311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:57,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:57,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:09:57,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431578509] [2022-12-05 20:09:57,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:57,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:09:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:57,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:09:57,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:09:57,590 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 72 [2022-12-05 20:09:57,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:57,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:57,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 72 [2022-12-05 20:09:57,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:09:57,699 INFO L130 PetriNetUnfolder]: 621/1229 cut-off events. [2022-12-05 20:09:57,699 INFO L131 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2022-12-05 20:09:57,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2853 conditions, 1229 events. 621/1229 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5143 event pairs, 79 based on Foata normal form. 4/1067 useless extension candidates. Maximal degree in co-relation 2833. Up to 888 conditions per place. [2022-12-05 20:09:57,707 INFO L137 encePairwiseOnDemand]: 64/72 looper letters, 63 selfloop transitions, 9 changer transitions 3/90 dead transitions. [2022-12-05 20:09:57,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 90 transitions, 545 flow [2022-12-05 20:09:57,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:09:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:09:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2022-12-05 20:09:57,708 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2022-12-05 20:09:57,708 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 367 flow. Second operand 3 states and 96 transitions. [2022-12-05 20:09:57,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 90 transitions, 545 flow [2022-12-05 20:09:57,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 90 transitions, 509 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-12-05 20:09:57,711 INFO L231 Difference]: Finished difference. Result has 87 places, 79 transitions, 345 flow [2022-12-05 20:09:57,711 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=87, PETRI_TRANSITIONS=79} [2022-12-05 20:09:57,713 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 19 predicate places. [2022-12-05 20:09:57,713 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 79 transitions, 345 flow [2022-12-05 20:09:57,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:57,714 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:09:57,714 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:09:57,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:09:57,714 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:09:57,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:09:57,717 INFO L85 PathProgramCache]: Analyzing trace with hash -105833256, now seen corresponding path program 1 times [2022-12-05 20:09:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:09:57,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210050502] [2022-12-05 20:09:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:09:57,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:09:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:09:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:09:59,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:09:59,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210050502] [2022-12-05 20:09:59,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210050502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:09:59,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:09:59,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 20:09:59,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952372942] [2022-12-05 20:09:59,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:09:59,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 20:09:59,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:09:59,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 20:09:59,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-12-05 20:09:59,373 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:09:59,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 79 transitions, 345 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:09:59,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:09:59,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:09:59,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:10:00,684 INFO L130 PetriNetUnfolder]: 1284/2531 cut-off events. [2022-12-05 20:10:00,685 INFO L131 PetriNetUnfolder]: For 447/447 co-relation queries the response was YES. [2022-12-05 20:10:00,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6022 conditions, 2531 events. 1284/2531 cut-off events. For 447/447 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 13104 event pairs, 244 based on Foata normal form. 0/2365 useless extension candidates. Maximal degree in co-relation 6002. Up to 1015 conditions per place. [2022-12-05 20:10:00,694 INFO L137 encePairwiseOnDemand]: 50/72 looper letters, 141 selfloop transitions, 43 changer transitions 14/207 dead transitions. [2022-12-05 20:10:00,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 207 transitions, 1139 flow [2022-12-05 20:10:00,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 20:10:00,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 20:10:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 318 transitions. [2022-12-05 20:10:00,696 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.29444444444444445 [2022-12-05 20:10:00,696 INFO L175 Difference]: Start difference. First operand has 87 places, 79 transitions, 345 flow. Second operand 15 states and 318 transitions. [2022-12-05 20:10:00,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 207 transitions, 1139 flow [2022-12-05 20:10:00,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 207 transitions, 1107 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:10:00,701 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 617 flow [2022-12-05 20:10:00,701 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=617, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2022-12-05 20:10:00,701 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 40 predicate places. [2022-12-05 20:10:00,701 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 617 flow [2022-12-05 20:10:00,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:00,702 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:10:00,702 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:10:00,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:10:00,702 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:10:00,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:10:00,702 INFO L85 PathProgramCache]: Analyzing trace with hash 854834192, now seen corresponding path program 2 times [2022-12-05 20:10:00,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:10:00,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140929856] [2022-12-05 20:10:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:10:00,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:10:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:10:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:10:01,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:10:01,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140929856] [2022-12-05 20:10:01,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140929856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:10:01,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:10:01,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 20:10:01,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184473068] [2022-12-05 20:10:01,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:10:01,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 20:10:01,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:10:01,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 20:10:01,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-05 20:10:01,714 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:10:01,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 617 flow. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:01,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:10:01,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:10:01,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:10:02,594 INFO L130 PetriNetUnfolder]: 931/1827 cut-off events. [2022-12-05 20:10:02,594 INFO L131 PetriNetUnfolder]: For 711/711 co-relation queries the response was YES. [2022-12-05 20:10:02,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4758 conditions, 1827 events. 931/1827 cut-off events. For 711/711 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8665 event pairs, 453 based on Foata normal form. 15/1751 useless extension candidates. Maximal degree in co-relation 4728. Up to 950 conditions per place. [2022-12-05 20:10:02,600 INFO L137 encePairwiseOnDemand]: 59/72 looper letters, 96 selfloop transitions, 31 changer transitions 15/151 dead transitions. [2022-12-05 20:10:02,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 151 transitions, 989 flow [2022-12-05 20:10:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 20:10:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 20:10:02,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 230 transitions. [2022-12-05 20:10:02,602 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2662037037037037 [2022-12-05 20:10:02,602 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 617 flow. Second operand 12 states and 230 transitions. [2022-12-05 20:10:02,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 151 transitions, 989 flow [2022-12-05 20:10:02,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 151 transitions, 929 flow, removed 15 selfloop flow, removed 8 redundant places. [2022-12-05 20:10:02,607 INFO L231 Difference]: Finished difference. Result has 111 places, 95 transitions, 588 flow [2022-12-05 20:10:02,608 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=588, PETRI_PLACES=111, PETRI_TRANSITIONS=95} [2022-12-05 20:10:02,608 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 43 predicate places. [2022-12-05 20:10:02,609 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 95 transitions, 588 flow [2022-12-05 20:10:02,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:02,609 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:10:02,609 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:10:02,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 20:10:02,609 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:10:02,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:10:02,611 INFO L85 PathProgramCache]: Analyzing trace with hash -993712866, now seen corresponding path program 3 times [2022-12-05 20:10:02,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:10:02,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584101730] [2022-12-05 20:10:02,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:10:02,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:10:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:10:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:10:03,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:10:03,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584101730] [2022-12-05 20:10:03,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584101730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:10:03,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:10:03,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 20:10:03,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833131604] [2022-12-05 20:10:03,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:10:03,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 20:10:03,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:10:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 20:10:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-05 20:10:03,420 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:10:03,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 95 transitions, 588 flow. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:03,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:10:03,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:10:03,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:10:04,142 INFO L130 PetriNetUnfolder]: 1167/2281 cut-off events. [2022-12-05 20:10:04,142 INFO L131 PetriNetUnfolder]: For 974/974 co-relation queries the response was YES. [2022-12-05 20:10:04,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5933 conditions, 2281 events. 1167/2281 cut-off events. For 974/974 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 11399 event pairs, 241 based on Foata normal form. 14/2191 useless extension candidates. Maximal degree in co-relation 5904. Up to 809 conditions per place. [2022-12-05 20:10:04,154 INFO L137 encePairwiseOnDemand]: 56/72 looper letters, 111 selfloop transitions, 38 changer transitions 12/170 dead transitions. [2022-12-05 20:10:04,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 170 transitions, 1122 flow [2022-12-05 20:10:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 20:10:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 20:10:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 253 transitions. [2022-12-05 20:10:04,155 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2702991452991453 [2022-12-05 20:10:04,155 INFO L175 Difference]: Start difference. First operand has 111 places, 95 transitions, 588 flow. Second operand 13 states and 253 transitions. [2022-12-05 20:10:04,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 170 transitions, 1122 flow [2022-12-05 20:10:04,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 170 transitions, 1075 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-05 20:10:04,162 INFO L231 Difference]: Finished difference. Result has 119 places, 101 transitions, 688 flow [2022-12-05 20:10:04,162 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=688, PETRI_PLACES=119, PETRI_TRANSITIONS=101} [2022-12-05 20:10:04,163 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 51 predicate places. [2022-12-05 20:10:04,163 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 101 transitions, 688 flow [2022-12-05 20:10:04,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:04,163 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:10:04,163 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:10:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 20:10:04,163 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:10:04,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:10:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1924309360, now seen corresponding path program 4 times [2022-12-05 20:10:04,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:10:04,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084040675] [2022-12-05 20:10:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:10:04,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:10:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:10:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:10:05,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:10:05,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084040675] [2022-12-05 20:10:05,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084040675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:10:05,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:10:05,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 20:10:05,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308172611] [2022-12-05 20:10:05,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:10:05,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 20:10:05,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:10:05,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 20:10:05,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-12-05 20:10:05,143 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:10:05,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 101 transitions, 688 flow. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:05,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:10:05,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:10:05,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:10:05,939 INFO L130 PetriNetUnfolder]: 1024/2005 cut-off events. [2022-12-05 20:10:05,939 INFO L131 PetriNetUnfolder]: For 1502/1502 co-relation queries the response was YES. [2022-12-05 20:10:05,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5593 conditions, 2005 events. 1024/2005 cut-off events. For 1502/1502 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9597 event pairs, 225 based on Foata normal form. 14/1928 useless extension candidates. Maximal degree in co-relation 5561. Up to 563 conditions per place. [2022-12-05 20:10:05,948 INFO L137 encePairwiseOnDemand]: 60/72 looper letters, 100 selfloop transitions, 33 changer transitions 15/157 dead transitions. [2022-12-05 20:10:05,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 157 transitions, 1135 flow [2022-12-05 20:10:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 20:10:05,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 20:10:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 226 transitions. [2022-12-05 20:10:05,950 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.26157407407407407 [2022-12-05 20:10:05,950 INFO L175 Difference]: Start difference. First operand has 119 places, 101 transitions, 688 flow. Second operand 12 states and 226 transitions. [2022-12-05 20:10:05,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 157 transitions, 1135 flow [2022-12-05 20:10:05,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 157 transitions, 1081 flow, removed 5 selfloop flow, removed 8 redundant places. [2022-12-05 20:10:05,958 INFO L231 Difference]: Finished difference. Result has 124 places, 102 transitions, 731 flow [2022-12-05 20:10:05,958 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=731, PETRI_PLACES=124, PETRI_TRANSITIONS=102} [2022-12-05 20:10:05,959 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 56 predicate places. [2022-12-05 20:10:05,959 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 102 transitions, 731 flow [2022-12-05 20:10:05,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:05,959 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:10:05,959 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:10:05,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-05 20:10:05,959 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:10:05,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:10:05,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1426571573, now seen corresponding path program 1 times [2022-12-05 20:10:05,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:10:05,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004835571] [2022-12-05 20:10:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:10:05,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:10:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:10:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:10:07,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:10:07,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004835571] [2022-12-05 20:10:07,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004835571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:10:07,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:10:07,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 20:10:07,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118630463] [2022-12-05 20:10:07,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:10:07,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-05 20:10:07,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:10:07,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-05 20:10:07,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-12-05 20:10:07,227 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-05 20:10:07,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 102 transitions, 731 flow. Second operand has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 18 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:07,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:10:07,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-05 20:10:07,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:10:08,009 INFO L130 PetriNetUnfolder]: 1148/2268 cut-off events. [2022-12-05 20:10:08,010 INFO L131 PetriNetUnfolder]: For 2173/2173 co-relation queries the response was YES. [2022-12-05 20:10:08,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6331 conditions, 2268 events. 1148/2268 cut-off events. For 2173/2173 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 11232 event pairs, 465 based on Foata normal form. 0/2163 useless extension candidates. Maximal degree in co-relation 6296. Up to 1132 conditions per place. [2022-12-05 20:10:08,021 INFO L137 encePairwiseOnDemand]: 54/72 looper letters, 125 selfloop transitions, 37 changer transitions 15/186 dead transitions. [2022-12-05 20:10:08,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 186 transitions, 1307 flow [2022-12-05 20:10:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 20:10:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 20:10:08,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 275 transitions. [2022-12-05 20:10:08,023 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2728174603174603 [2022-12-05 20:10:08,023 INFO L175 Difference]: Start difference. First operand has 124 places, 102 transitions, 731 flow. Second operand 14 states and 275 transitions. [2022-12-05 20:10:08,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 186 transitions, 1307 flow [2022-12-05 20:10:08,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 186 transitions, 1249 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-05 20:10:08,032 INFO L231 Difference]: Finished difference. Result has 131 places, 108 transitions, 792 flow [2022-12-05 20:10:08,033 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=792, PETRI_PLACES=131, PETRI_TRANSITIONS=108} [2022-12-05 20:10:08,033 INFO L294 CegarLoopForPetriNet]: 68 programPoint places, 63 predicate places. [2022-12-05 20:10:08,033 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 108 transitions, 792 flow [2022-12-05 20:10:08,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 18 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:10:08,033 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:10:08,034 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:10:08,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-05 20:10:08,034 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:10:08,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:10:08,034 INFO L85 PathProgramCache]: Analyzing trace with hash 474854145, now seen corresponding path program 2 times [2022-12-05 20:10:08,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:10:08,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825086674] [2022-12-05 20:10:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:10:08,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:10:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-12-05 20:19:28,031 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 [2022-12-05 20:19:28,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-05 20:19:28,091 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:152) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:848) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:776) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:350) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-05 20:19:28,107 INFO L158 Benchmark]: Toolchain (without parser) took 586095.37ms. Allocated memory was 178.3MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 132.5MB in the beginning and 470.3MB in the end (delta: -337.8MB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. [2022-12-05 20:19:28,107 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:19:28,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.64ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 139.5MB in the end (delta: -7.0MB). Peak memory consumption was 17.9MB. Max. memory is 8.0GB. [2022-12-05 20:19:28,110 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.03ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 136.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:19:28,110 INFO L158 Benchmark]: Boogie Preprocessor took 27.46ms. Allocated memory is still 178.3MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:19:28,110 INFO L158 Benchmark]: RCFGBuilder took 490.82ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 111.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 20:19:28,110 INFO L158 Benchmark]: TraceAbstraction took 585059.92ms. Allocated memory was 178.3MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 111.2MB in the beginning and 470.3MB in the end (delta: -359.1MB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. [2022-12-05 20:19:28,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 449.64ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 139.5MB in the end (delta: -7.0MB). Peak memory consumption was 17.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.03ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 136.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.46ms. Allocated memory is still 178.3MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 490.82ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 111.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 585059.92ms. Allocated memory was 178.3MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 111.2MB in the beginning and 470.3MB in the end (delta: -359.1MB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 237 PlacesBefore, 68 PlacesAfterwards, 245 TransitionsBefore, 72 TransitionsAfterwards, 15600 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 58 TrivialYvCompositions, 123 ConcurrentYvCompositions, 5 ChoiceCompositions, 192 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10791, independent: 10403, independent conditional: 10403, independent unconditional: 0, dependent: 388, dependent conditional: 388, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10791, independent: 10403, independent conditional: 0, independent unconditional: 10403, dependent: 388, dependent conditional: 0, dependent unconditional: 388, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10791, independent: 10403, independent conditional: 0, independent unconditional: 10403, dependent: 388, dependent conditional: 0, dependent unconditional: 388, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10791, independent: 10403, independent conditional: 0, independent unconditional: 10403, dependent: 388, dependent conditional: 0, dependent unconditional: 388, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8952, independent: 8822, independent conditional: 0, independent unconditional: 8822, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8952, independent: 8795, independent conditional: 0, independent unconditional: 8795, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 157, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 232, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10791, independent: 1581, independent conditional: 0, independent unconditional: 1581, dependent: 258, dependent conditional: 0, dependent unconditional: 258, unknown: 8952, unknown conditional: 0, unknown unconditional: 8952] , Statistics on independence cache: Total cache size (in pairs): 14712, Positive cache size: 14582, Positive conditional cache size: 0, Positive unconditional cache size: 14582, Negative cache size: 130, Negative conditional cache size: 0, Negative unconditional cache size: 130, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:275) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown [2022-12-05 20:19:28,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !ENTRY org.eclipse.osgi 4 0 2022-12-05 20:19:28.338 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1450ae38/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1450ae38/.metadata/.log.