/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 --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/queue_ok_longer.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:18:29,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:18:29,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:18:29,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:18:29,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:18:29,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:18:29,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:18:29,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:18:29,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:18:29,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:18:29,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:18:29,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:18:29,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:18:29,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:18:29,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:18:29,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:18:29,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:18:29,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:18:29,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:18:29,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:18:29,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:18:29,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:18:29,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:18:29,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:18:29,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:18:29,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:18:29,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:18:29,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:18:29,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:18:29,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:18:29,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:18:29,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:18:29,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:18:29,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:18:29,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:18:29,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:18:29,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:18:29,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:18:29,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:18:29,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:18:29,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:18:29,454 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 [2022-12-12 21:18:29,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:18:29,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:18:29,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:18:29,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:18:29,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:18:29,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:18:29,479 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:18:29,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:18:29,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:18:29,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:18:29,480 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:18:29,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:18:29,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:18:29,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:18:29,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:18:29,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:18:29,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:18:29,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:18:29,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:18:29,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:18:29,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:18:29,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:18:29,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:18:29,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:18:29,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:18:29,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:18:29,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:18:29,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:18:29,815 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:18:29,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longer.i [2022-12-12 21:18:31,118 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:18:31,408 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:18:31,409 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i [2022-12-12 21:18:31,424 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b3b8a62/b33146acbd4d4deb89481bc9ad4feb0e/FLAG5a3e4ba36 [2022-12-12 21:18:31,443 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b3b8a62/b33146acbd4d4deb89481bc9ad4feb0e [2022-12-12 21:18:31,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:18:31,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:18:31,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:18:31,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:18:31,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:18:31,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:18:31" (1/1) ... [2022-12-12 21:18:31,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16793e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:31, skipping insertion in model container [2022-12-12 21:18:31,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:18:31" (1/1) ... [2022-12-12 21:18:31,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:18:31,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:18:31,922 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_ok_longer.i[43272,43285] [2022-12-12 21:18:31,928 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_ok_longer.i[43545,43558] [2022-12-12 21:18:31,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:18:31,943 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:18:31,986 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_ok_longer.i[43272,43285] [2022-12-12 21:18:31,992 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_ok_longer.i[43545,43558] [2022-12-12 21:18:31,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:18:32,059 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:18:32,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32 WrapperNode [2022-12-12 21:18:32,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:18:32,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:18:32,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:18:32,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:18:32,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,112 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 202 [2022-12-12 21:18:32,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:18:32,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:18:32,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:18:32,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:18:32,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,168 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:18:32,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:18:32,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:18:32,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:18:32,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (1/1) ... [2022-12-12 21:18:32,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:18:32,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:18:32,208 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) [2022-12-12 21:18:32,222 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 [2022-12-12 21:18:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-12 21:18:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-12 21:18:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-12 21:18:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-12 21:18:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:18:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:18:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:18:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:18:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 21:18:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:18:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:18:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:18:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:18:32,244 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:18:32,371 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:18:32,373 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:18:32,793 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:18:32,802 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:18:32,802 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-12 21:18:32,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:18:32 BoogieIcfgContainer [2022-12-12 21:18:32,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:18:32,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:18:32,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:18:32,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:18:32,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:18:31" (1/3) ... [2022-12-12 21:18:32,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c171df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:18:32, skipping insertion in model container [2022-12-12 21:18:32,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:32" (2/3) ... [2022-12-12 21:18:32,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c171df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:18:32, skipping insertion in model container [2022-12-12 21:18:32,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:18:32" (3/3) ... [2022-12-12 21:18:32,816 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2022-12-12 21:18:32,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:18:32,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:18:32,832 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:18:32,950 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 21:18:32,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 215 transitions, 446 flow [2022-12-12 21:18:33,086 INFO L130 PetriNetUnfolder]: 13/213 cut-off events. [2022-12-12 21:18:33,086 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 21:18:33,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 213 events. 13/213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 357 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 140. Up to 3 conditions per place. [2022-12-12 21:18:33,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 215 transitions, 446 flow [2022-12-12 21:18:33,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 204 transitions, 417 flow [2022-12-12 21:18:33,110 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:18:33,129 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 204 transitions, 417 flow [2022-12-12 21:18:33,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 204 transitions, 417 flow [2022-12-12 21:18:33,215 INFO L130 PetriNetUnfolder]: 13/204 cut-off events. [2022-12-12 21:18:33,216 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 21:18:33,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 204 events. 13/204 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 293 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 140. Up to 3 conditions per place. [2022-12-12 21:18:33,228 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 204 transitions, 417 flow [2022-12-12 21:18:33,228 INFO L226 LiptonReduction]: Number of co-enabled transitions 9810 [2022-12-12 21:18:42,628 INFO L241 LiptonReduction]: Total number of compositions: 167 [2022-12-12 21:18:42,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:18:42,656 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;@2a138878, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:18:42,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-12 21:18:42,658 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-12 21:18:42,658 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:18:42,658 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:42,659 INFO L214 CegarLoopForPetriNet]: trace histogram [1] [2022-12-12 21:18:42,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:42,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:42,664 INFO L85 PathProgramCache]: Analyzing trace with hash 880, now seen corresponding path program 1 times [2022-12-12 21:18:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:42,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450274562] [2022-12-12 21:18:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:42,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:42,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450274562] [2022-12-12 21:18:42,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450274562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:18:42,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:18:42,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-12 21:18:42,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135701496] [2022-12-12 21:18:42,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:18:42,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 21:18:42,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 21:18:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 21:18:42,812 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 82 [2022-12-12 21:18:42,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 82 transitions, 173 flow. Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2022-12-12 21:18:42,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:42,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 82 [2022-12-12 21:18:42,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:43,316 INFO L130 PetriNetUnfolder]: 3558/5821 cut-off events. [2022-12-12 21:18:43,316 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-12 21:18:43,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11288 conditions, 5821 events. 3558/5821 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 33901 event pairs, 2900 based on Foata normal form. 0/3129 useless extension candidates. Maximal degree in co-relation 11124. Up to 5369 conditions per place. [2022-12-12 21:18:43,350 INFO L137 encePairwiseOnDemand]: 80/82 looper letters, 65 selfloop transitions, 0 changer transitions 0/80 dead transitions. [2022-12-12 21:18:43,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 80 transitions, 299 flow [2022-12-12 21:18:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 21:18:43,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 21:18:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 97 transitions. [2022-12-12 21:18:43,364 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5914634146341463 [2022-12-12 21:18:43,367 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2022-12-12 21:18:43,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 80 transitions, 299 flow [2022-12-12 21:18:43,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 80 transitions, 299 flow [2022-12-12 21:18:43,394 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 80 transitions, 299 flow [2022-12-12 21:18:43,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2022-12-12 21:18:43,394 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:43,394 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:18:43,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:18:43,395 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:43,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:43,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1562134785, now seen corresponding path program 1 times [2022-12-12 21:18:43,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:43,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941069303] [2022-12-12 21:18:43,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:43,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:43,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:43,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941069303] [2022-12-12 21:18:43,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941069303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:18:43,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:18:43,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:18:43,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486825493] [2022-12-12 21:18:43,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:18:43,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:18:43,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:43,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:18:43,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:18:43,637 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:18:43,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-12-12 21:18:43,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:43,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:18:43,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:43,878 INFO L130 PetriNetUnfolder]: 1015/1878 cut-off events. [2022-12-12 21:18:43,878 INFO L131 PetriNetUnfolder]: For 162/168 co-relation queries the response was YES. [2022-12-12 21:18:43,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5450 conditions, 1878 events. 1015/1878 cut-off events. For 162/168 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 10307 event pairs, 820 based on Foata normal form. 119/1166 useless extension candidates. Maximal degree in co-relation 5169. Up to 1725 conditions per place. [2022-12-12 21:18:43,884 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 38 selfloop transitions, 2 changer transitions 38/91 dead transitions. [2022-12-12 21:18:43,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 91 transitions, 503 flow [2022-12-12 21:18:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:18:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:18:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2022-12-12 21:18:43,886 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2022-12-12 21:18:43,887 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, 2 predicate places. [2022-12-12 21:18:43,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 91 transitions, 503 flow [2022-12-12 21:18:43,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 276 flow [2022-12-12 21:18:43,892 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 53 transitions, 276 flow [2022-12-12 21:18:43,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-12-12 21:18:43,892 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:43,892 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:18:43,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:18:43,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1524891937, now seen corresponding path program 1 times [2022-12-12 21:18:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:43,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434899280] [2022-12-12 21:18:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:43,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:43,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:43,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434899280] [2022-12-12 21:18:43,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434899280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:18:43,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:18:43,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:18:43,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191082836] [2022-12-12 21:18:43,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:18:43,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:18:43,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:43,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:18:43,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:18:43,973 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:18:43,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2022-12-12 21:18:43,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:43,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:18:43,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:44,090 INFO L130 PetriNetUnfolder]: 372/779 cut-off events. [2022-12-12 21:18:44,090 INFO L131 PetriNetUnfolder]: For 347/347 co-relation queries the response was YES. [2022-12-12 21:18:44,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 779 events. 372/779 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3345 event pairs, 163 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 2489. Up to 624 conditions per place. [2022-12-12 21:18:44,095 INFO L137 encePairwiseOnDemand]: 79/82 looper letters, 49 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2022-12-12 21:18:44,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 66 transitions, 459 flow [2022-12-12 21:18:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:18:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:18:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2022-12-12 21:18:44,097 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3699186991869919 [2022-12-12 21:18:44,097 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, -26 predicate places. [2022-12-12 21:18:44,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 66 transitions, 459 flow [2022-12-12 21:18:44,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 64 transitions, 451 flow [2022-12-12 21:18:44,102 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 64 transitions, 451 flow [2022-12-12 21:18:44,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2022-12-12 21:18:44,103 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:44,103 INFO L214 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] [2022-12-12 21:18:44,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:18:44,103 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1405961901, now seen corresponding path program 1 times [2022-12-12 21:18:44,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:44,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083719778] [2022-12-12 21:18:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:44,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:44,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:44,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083719778] [2022-12-12 21:18:44,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083719778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:18:44,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:18:44,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:18:44,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001824618] [2022-12-12 21:18:44,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:18:44,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:18:44,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:44,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:18:44,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:18:44,310 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:18:44,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 64 transitions, 451 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-12-12 21:18:44,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:44,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:18:44,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:44,404 INFO L130 PetriNetUnfolder]: 210/517 cut-off events. [2022-12-12 21:18:44,404 INFO L131 PetriNetUnfolder]: For 457/457 co-relation queries the response was YES. [2022-12-12 21:18:44,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2274 conditions, 517 events. 210/517 cut-off events. For 457/457 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2192 event pairs, 0 based on Foata normal form. 48/459 useless extension candidates. Maximal degree in co-relation 1978. Up to 423 conditions per place. [2022-12-12 21:18:44,414 INFO L137 encePairwiseOnDemand]: 77/82 looper letters, 55 selfloop transitions, 5 changer transitions 2/73 dead transitions. [2022-12-12 21:18:44,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 73 transitions, 654 flow [2022-12-12 21:18:44,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:18:44,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:18:44,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2022-12-12 21:18:44,417 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34552845528455284 [2022-12-12 21:18:44,418 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, -25 predicate places. [2022-12-12 21:18:44,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 73 transitions, 654 flow [2022-12-12 21:18:44,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 71 transitions, 642 flow [2022-12-12 21:18:44,423 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 71 transitions, 642 flow [2022-12-12 21:18:44,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-12-12 21:18:44,423 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:44,423 INFO L214 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] [2022-12-12 21:18:44,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:18:44,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:44,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1110294922, now seen corresponding path program 1 times [2022-12-12 21:18:44,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:44,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409789054] [2022-12-12 21:18:44,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:44,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:44,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:44,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409789054] [2022-12-12 21:18:44,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409789054] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 21:18:44,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488304599] [2022-12-12 21:18:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:44,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:44,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:18:44,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 21:18:44,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 21:18:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:44,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-12 21:18:44,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 21:18:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:44,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 21:18:44,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:44,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488304599] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 21:18:44,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 21:18:44,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-12 21:18:44,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815665189] [2022-12-12 21:18:44,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 21:18:44,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:18:44,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:44,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:18:44,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:18:44,786 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:18:44,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 71 transitions, 642 flow. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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) [2022-12-12 21:18:44,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:44,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:18:44,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:45,016 INFO L130 PetriNetUnfolder]: 270/698 cut-off events. [2022-12-12 21:18:45,016 INFO L131 PetriNetUnfolder]: For 1013/1013 co-relation queries the response was YES. [2022-12-12 21:18:45,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3514 conditions, 698 events. 270/698 cut-off events. For 1013/1013 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2660 event pairs, 0 based on Foata normal form. 0/570 useless extension candidates. Maximal degree in co-relation 3163. Up to 545 conditions per place. [2022-12-12 21:18:45,023 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 80 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2022-12-12 21:18:45,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 98 transitions, 1093 flow [2022-12-12 21:18:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:18:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:18:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2022-12-12 21:18:45,026 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3231707317073171 [2022-12-12 21:18:45,027 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, -21 predicate places. [2022-12-12 21:18:45,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 98 transitions, 1093 flow [2022-12-12 21:18:45,034 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 98 transitions, 1093 flow [2022-12-12 21:18:45,034 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 98 transitions, 1093 flow [2022-12-12 21:18:45,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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) [2022-12-12 21:18:45,035 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:45,035 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:18:45,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 21:18:45,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:45,242 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:45,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1167371128, now seen corresponding path program 2 times [2022-12-12 21:18:45,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:45,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137905394] [2022-12-12 21:18:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:45,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:45,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:45,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137905394] [2022-12-12 21:18:45,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137905394] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 21:18:45,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361101685] [2022-12-12 21:18:45,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 21:18:45,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:45,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:18:45,434 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 21:18:45,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 21:18:45,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 21:18:45,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 21:18:45,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 21:18:45,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 21:18:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:45,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 21:18:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:45,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361101685] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 21:18:45,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 21:18:45,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-12-12 21:18:45,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289389009] [2022-12-12 21:18:45,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 21:18:45,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-12 21:18:45,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:45,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-12 21:18:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-12 21:18:45,797 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:18:45,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 98 transitions, 1093 flow. Second operand has 13 states, 13 states have (on average 19.076923076923077) internal successors, (248), 13 states have internal predecessors, (248), 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) [2022-12-12 21:18:45,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:45,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:18:45,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:46,090 INFO L130 PetriNetUnfolder]: 444/1232 cut-off events. [2022-12-12 21:18:46,090 INFO L131 PetriNetUnfolder]: For 2876/2876 co-relation queries the response was YES. [2022-12-12 21:18:46,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6789 conditions, 1232 events. 444/1232 cut-off events. For 2876/2876 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4767 event pairs, 0 based on Foata normal form. 0/1038 useless extension candidates. Maximal degree in co-relation 6383. Up to 899 conditions per place. [2022-12-12 21:18:46,098 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 164 selfloop transitions, 12 changer transitions 0/188 dead transitions. [2022-12-12 21:18:46,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 188 transitions, 2561 flow [2022-12-12 21:18:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 21:18:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 21:18:46,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 312 transitions. [2022-12-12 21:18:46,101 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3170731707317073 [2022-12-12 21:18:46,101 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, -10 predicate places. [2022-12-12 21:18:46,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 188 transitions, 2561 flow [2022-12-12 21:18:46,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 188 transitions, 2561 flow [2022-12-12 21:18:46,109 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 188 transitions, 2561 flow [2022-12-12 21:18:46,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.076923076923077) internal successors, (248), 13 states have internal predecessors, (248), 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) [2022-12-12 21:18:46,110 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:46,110 INFO L214 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:18:46,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-12 21:18:46,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-12 21:18:46,317 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1504019128, now seen corresponding path program 3 times [2022-12-12 21:18:46,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:46,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211844703] [2022-12-12 21:18:46,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:46,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:46,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:46,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211844703] [2022-12-12 21:18:46,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211844703] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 21:18:46,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621104614] [2022-12-12 21:18:46,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 21:18:46,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:46,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:18:46,711 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 21:18:46,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 21:18:47,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-12 21:18:47,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 21:18:47,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-12 21:18:47,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 21:18:47,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-12 21:18:47,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 21:18:47,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-12 21:18:47,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 21:18:47,702 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-12 21:18:47,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 27 [2022-12-12 21:18:47,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 21:18:47,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-12 21:18:47,764 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 76 proven. 45 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-12 21:18:47,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 21:18:47,952 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 21:18:47,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2022-12-12 21:18:47,963 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 21:18:47,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 83 [2022-12-12 21:18:47,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 70 [2022-12-12 21:18:47,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-12-12 21:18:48,048 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 21:18:48,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 48 [2022-12-12 21:18:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 76 proven. 45 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-12 21:18:48,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621104614] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 21:18:48,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 21:18:48,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 25 [2022-12-12 21:18:48,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119212559] [2022-12-12 21:18:48,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 21:18:48,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-12 21:18:48,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-12 21:18:48,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=472, Unknown=5, NotChecked=0, Total=600 [2022-12-12 21:18:48,224 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 82 [2022-12-12 21:18:48,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 188 transitions, 2561 flow. Second operand has 25 states, 25 states have (on average 12.68) internal successors, (317), 25 states have internal predecessors, (317), 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) [2022-12-12 21:18:48,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:48,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 82 [2022-12-12 21:18:48,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:50,113 INFO L130 PetriNetUnfolder]: 1284/2895 cut-off events. [2022-12-12 21:18:50,113 INFO L131 PetriNetUnfolder]: For 12808/12808 co-relation queries the response was YES. [2022-12-12 21:18:50,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19442 conditions, 2895 events. 1284/2895 cut-off events. For 12808/12808 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 12996 event pairs, 0 based on Foata normal form. 0/2457 useless extension candidates. Maximal degree in co-relation 18674. Up to 2206 conditions per place. [2022-12-12 21:18:50,136 INFO L137 encePairwiseOnDemand]: 71/82 looper letters, 382 selfloop transitions, 111 changer transitions 48/546 dead transitions. [2022-12-12 21:18:50,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 546 transitions, 7527 flow [2022-12-12 21:18:50,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 21:18:50,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 21:18:50,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 761 transitions. [2022-12-12 21:18:50,141 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.22096399535423925 [2022-12-12 21:18:50,142 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, 31 predicate places. [2022-12-12 21:18:50,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 546 transitions, 7527 flow [2022-12-12 21:18:50,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 498 transitions, 7335 flow [2022-12-12 21:18:50,165 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 498 transitions, 7335 flow [2022-12-12 21:18:50,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.68) internal successors, (317), 25 states have internal predecessors, (317), 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) [2022-12-12 21:18:50,165 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:50,166 INFO L214 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:18:50,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-12 21:18:50,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:50,374 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:50,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:50,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1181525803, now seen corresponding path program 1 times [2022-12-12 21:18:50,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:50,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847814635] [2022-12-12 21:18:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:50,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:50,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:50,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847814635] [2022-12-12 21:18:50,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847814635] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 21:18:50,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529886317] [2022-12-12 21:18:50,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:50,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:50,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:18:50,792 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 21:18:50,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 21:18:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:51,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-12 21:18:51,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 21:18:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:51,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 21:18:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:51,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529886317] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 21:18:51,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 21:18:51,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-12-12 21:18:51,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248707282] [2022-12-12 21:18:51,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 21:18:51,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-12 21:18:51,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:51,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-12 21:18:51,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-12-12 21:18:51,389 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:18:51,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 498 transitions, 7335 flow. Second operand has 27 states, 27 states have (on average 19.37037037037037) internal successors, (523), 27 states have internal predecessors, (523), 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) [2022-12-12 21:18:51,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:51,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:18:51,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:52,694 INFO L130 PetriNetUnfolder]: 1986/4523 cut-off events. [2022-12-12 21:18:52,694 INFO L131 PetriNetUnfolder]: For 24818/24818 co-relation queries the response was YES. [2022-12-12 21:18:52,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35124 conditions, 4523 events. 1986/4523 cut-off events. For 24818/24818 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 18602 event pairs, 18 based on Foata normal form. 0/3865 useless extension candidates. Maximal degree in co-relation 34265. Up to 3638 conditions per place. [2022-12-12 21:18:52,727 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 784 selfloop transitions, 52 changer transitions 0/904 dead transitions. [2022-12-12 21:18:52,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 904 transitions, 15689 flow [2022-12-12 21:18:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-12 21:18:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-12 21:18:52,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 669 transitions. [2022-12-12 21:18:52,730 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.31378986866791747 [2022-12-12 21:18:52,731 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, 54 predicate places. [2022-12-12 21:18:52,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 904 transitions, 15689 flow [2022-12-12 21:18:52,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 904 transitions, 15689 flow [2022-12-12 21:18:52,766 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 904 transitions, 15689 flow [2022-12-12 21:18:52,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 19.37037037037037) internal successors, (523), 27 states have internal predecessors, (523), 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) [2022-12-12 21:18:52,767 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:52,767 INFO L214 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:18:52,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-12 21:18:52,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:52,975 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:52,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:52,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1371646037, now seen corresponding path program 2 times [2022-12-12 21:18:52,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:52,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589920396] [2022-12-12 21:18:52,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1878 backedges. 0 proven. 1878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:54,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:54,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589920396] [2022-12-12 21:18:54,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589920396] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 21:18:54,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031609351] [2022-12-12 21:18:54,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 21:18:54,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:54,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:18:54,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 21:18:54,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-12 21:18:54,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 21:18:54,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 21:18:54,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-12 21:18:54,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 21:18:54,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1878 backedges. 0 proven. 1878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:54,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 21:18:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1878 backedges. 0 proven. 1878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:55,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031609351] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 21:18:55,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 21:18:55,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-12-12 21:18:55,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559977525] [2022-12-12 21:18:55,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 21:18:55,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-12 21:18:55,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:55,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-12 21:18:55,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-12-12 21:18:55,710 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:18:55,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 904 transitions, 15689 flow. Second operand has 53 states, 53 states have (on average 19.528301886792452) internal successors, (1035), 53 states have internal predecessors, (1035), 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) [2022-12-12 21:18:55,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:55,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:18:55,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:59,369 INFO L130 PetriNetUnfolder]: 3884/8889 cut-off events. [2022-12-12 21:18:59,370 INFO L131 PetriNetUnfolder]: For 66180/66180 co-relation queries the response was YES. [2022-12-12 21:18:59,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75784 conditions, 8889 events. 3884/8889 cut-off events. For 66180/66180 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 36498 event pairs, 0 based on Foata normal form. 0/7659 useless extension candidates. Maximal degree in co-relation 74834. Up to 7096 conditions per place. [2022-12-12 21:18:59,431 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 1590 selfloop transitions, 104 changer transitions 0/1762 dead transitions. [2022-12-12 21:18:59,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 1762 transitions, 34911 flow [2022-12-12 21:18:59,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-12 21:18:59,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-12-12 21:18:59,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 1332 transitions. [2022-12-12 21:18:59,438 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3123827392120075 [2022-12-12 21:18:59,438 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, 105 predicate places. [2022-12-12 21:18:59,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 1762 transitions, 34911 flow [2022-12-12 21:18:59,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 1762 transitions, 34911 flow [2022-12-12 21:18:59,506 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 1762 transitions, 34911 flow [2022-12-12 21:18:59,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 19.528301886792452) internal successors, (1035), 53 states have internal predecessors, (1035), 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) [2022-12-12 21:18:59,509 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:59,509 INFO L214 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:18:59,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-12 21:18:59,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:18:59,717 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:18:59,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1656820115, now seen corresponding path program 3 times [2022-12-12 21:18:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:59,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510697283] [2022-12-12 21:18:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:19:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 8300 backedges. 0 proven. 8300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:19:03,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:19:03,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510697283] [2022-12-12 21:19:03,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510697283] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 21:19:03,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840817473] [2022-12-12 21:19:03,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 21:19:03,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:19:03,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:19:03,640 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 21:19:03,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-12 21:19:06,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-12 21:19:06,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 21:19:06,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 114 conjunts are in the unsatisfiable core [2022-12-12 21:19:06,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 21:19:06,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 21:19:06,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 21:19:06,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2022-12-12 21:19:06,214 INFO L321 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2022-12-12 21:19:06,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 35 treesize of output 55 [2022-12-12 21:19:06,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-12 21:19:06,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 39 [2022-12-12 21:19:06,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2022-12-12 21:19:06,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-12 21:19:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 8300 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 8054 trivial. 0 not checked. [2022-12-12 21:19:06,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 21:19:06,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840817473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:19:06,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 21:19:06,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [53] total 58 [2022-12-12 21:19:06,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416755598] [2022-12-12 21:19:06,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:19:06,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:19:06,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:19:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:19:06,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1393, Invalid=1913, Unknown=0, NotChecked=0, Total=3306 [2022-12-12 21:19:06,680 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 82 [2022-12-12 21:19:06,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 1762 transitions, 34911 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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) [2022-12-12 21:19:06,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:19:06,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 82 [2022-12-12 21:19:06,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:19:11,097 INFO L130 PetriNetUnfolder]: 3899/8924 cut-off events. [2022-12-12 21:19:11,097 INFO L131 PetriNetUnfolder]: For 66624/66624 co-relation queries the response was YES. [2022-12-12 21:19:11,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84513 conditions, 8924 events. 3899/8924 cut-off events. For 66624/66624 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 36693 event pairs, 15 based on Foata normal form. 0/7689 useless extension candidates. Maximal degree in co-relation 83466. Up to 8328 conditions per place. [2022-12-12 21:19:11,173 INFO L137 encePairwiseOnDemand]: 75/82 looper letters, 1761 selfloop transitions, 12 changer transitions 0/1778 dead transitions. [2022-12-12 21:19:11,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 1778 transitions, 38770 flow [2022-12-12 21:19:11,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:19:11,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:19:11,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2022-12-12 21:19:11,174 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.22560975609756098 [2022-12-12 21:19:11,175 INFO L295 CegarLoopForPetriNet]: 81 programPoint places, 110 predicate places. [2022-12-12 21:19:11,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 1778 transitions, 38770 flow [2022-12-12 21:19:11,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 1778 transitions, 38770 flow [2022-12-12 21:19:11,252 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 1778 transitions, 38770 flow [2022-12-12 21:19:11,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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) [2022-12-12 21:19:11,252 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:19:11,252 INFO L214 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:19:11,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-12 21:19:11,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:19:11,470 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 21:19:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:19:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash 486704985, now seen corresponding path program 4 times [2022-12-12 21:19:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:19:11,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698656060] [2022-12-12 21:19:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:19:11,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:19:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:19:15,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8300 backedges. 0 proven. 8300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:19:15,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:19:15,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698656060] [2022-12-12 21:19:15,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698656060] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 21:19:15,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565224638] [2022-12-12 21:19:15,118 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-12 21:19:15,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 21:19:15,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:19:15,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 21:19:15,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Received shutdown request... [2022-12-12 21:32:52,196 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 21:32:52,212 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 [2022-12-12 21:32:53,225 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 [2022-12-12 21:32:53,397 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2022-12-12 21:32:53,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2022-12-12 21:32:53,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-12 21:32:53,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-12 21:32:53,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2022-12-12 21:32:53,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618143819] [2022-12-12 21:32:53,413 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-12 21:32:53,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-12 21:32:53,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:32:53,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-12 21:32:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-12-12 21:32:53,417 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 82 [2022-12-12 21:32:53,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 1778 transitions, 38770 flow. Second operand has 53 states, 53 states have (on average 19.50943396226415) internal successors, (1034), 53 states have internal predecessors, (1034), 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) [2022-12-12 21:32:53,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:32:53,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 82 [2022-12-12 21:32:53,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:32:53,421 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-12 21:32:53,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 21:32:53,422 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-12-12 21:32:53,423 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-12 21:32:53,423 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-12 21:32:53,423 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-12 21:32:53,424 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-12 21:32:53,424 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2022-12-12 21:32:53,428 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:32:53,428 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:32:53,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:32:53 BasicIcfg [2022-12-12 21:32:53,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:32:53,432 INFO L158 Benchmark]: Toolchain (without parser) took 861985.21ms. Allocated memory was 204.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 169.8MB in the beginning and 1.0GB in the end (delta: -870.2MB). Peak memory consumption was 410.1MB. Max. memory is 8.0GB. [2022-12-12 21:32:53,432 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 204.5MB. Free memory was 182.0MB in the beginning and 181.9MB in the end (delta: 84.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:32:53,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.18ms. Allocated memory is still 204.5MB. Free memory was 169.8MB in the beginning and 139.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-12-12 21:32:53,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.07ms. Allocated memory is still 204.5MB. Free memory was 139.9MB in the beginning and 136.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 21:32:53,433 INFO L158 Benchmark]: Boogie Preprocessor took 59.41ms. Allocated memory is still 204.5MB. Free memory was 136.8MB in the beginning and 134.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:32:53,433 INFO L158 Benchmark]: RCFGBuilder took 631.11ms. Allocated memory is still 204.5MB. Free memory was 134.7MB in the beginning and 113.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-12 21:32:53,433 INFO L158 Benchmark]: TraceAbstraction took 860621.34ms. Allocated memory was 204.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 112.7MB in the beginning and 1.0GB in the end (delta: -927.3MB). Peak memory consumption was 353.5MB. Max. memory is 8.0GB. [2022-12-12 21:32:53,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 204.5MB. Free memory was 182.0MB in the beginning and 181.9MB in the end (delta: 84.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 609.18ms. Allocated memory is still 204.5MB. Free memory was 169.8MB in the beginning and 139.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.07ms. Allocated memory is still 204.5MB. Free memory was 139.9MB in the beginning and 136.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.41ms. Allocated memory is still 204.5MB. Free memory was 136.8MB in the beginning and 134.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 631.11ms. Allocated memory is still 204.5MB. Free memory was 134.7MB in the beginning and 113.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 860621.34ms. Allocated memory was 204.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 112.7MB in the beginning and 1.0GB in the end (delta: -927.3MB). Peak memory consumption was 353.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4s, 198 PlacesBefore, 81 PlacesAfterwards, 204 TransitionsBefore, 82 TransitionsAfterwards, 9810 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 58 TrivialYvCompositions, 97 ConcurrentYvCompositions, 6 ChoiceCompositions, 167 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9707, independent: 9459, independent conditional: 9459, independent unconditional: 0, dependent: 248, dependent conditional: 248, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9707, independent: 9459, independent conditional: 0, independent unconditional: 9459, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9707, independent: 9459, independent conditional: 0, independent unconditional: 9459, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9707, independent: 9459, independent conditional: 0, independent unconditional: 9459, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7053, independent: 6946, independent conditional: 0, independent unconditional: 6946, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7053, independent: 6926, independent conditional: 0, independent unconditional: 6926, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 127, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 218, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9707, independent: 2513, independent conditional: 0, independent unconditional: 2513, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 7053, unknown conditional: 0, unknown unconditional: 7053] , Statistics on independence cache: Total cache size (in pairs): 14193, Positive cache size: 14086, Positive conditional cache size: 0, Positive unconditional cache size: 14086, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 1033]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 325 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.3s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 860.4s, OverallIterations: 11, TraceHistogramMax: 50, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3912 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3912 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 292 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2504 IncrementalHoareTripleChecker+Invalid, 2797 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 292 mSolverCounterUnsat, 5 mSDtfsCounter, 2504 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1570 GetRequests, 1307 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38770occurred in iteration=10, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 439 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 2180 NumberOfCodeBlocks, 1793 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2625 ConstructedInterpolants, 6 QuantifiedInterpolants, 7778 SizeOfPredicates, 27 NumberOfNonLiveVariables, 3685 ConjunctsInSsa, 209 ConjunctsInUnsatCore, 22 InterpolantComputations, 5 PerfectInterpolantSequences, 8861/32779 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown