/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --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/weaver/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 01:38:04,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 01:38:04,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 01:38:04,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 01:38:04,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 01:38:04,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 01:38:04,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 01:38:04,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 01:38:04,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 01:38:04,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 01:38:04,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 01:38:04,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 01:38:04,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 01:38:04,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 01:38:04,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 01:38:04,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 01:38:04,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 01:38:04,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 01:38:04,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 01:38:04,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 01:38:04,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 01:38:04,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 01:38:04,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 01:38:04,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 01:38:04,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 01:38:04,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 01:38:04,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 01:38:04,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 01:38:04,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 01:38:04,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 01:38:04,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 01:38:04,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 01:38:04,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 01:38:04,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 01:38:04,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 01:38:04,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 01:38:04,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 01:38:04,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 01:38:04,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 01:38:04,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 01:38:04,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 01:38:04,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 01:38:04,866 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 01:38:04,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 01:38:04,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 01:38:04,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 01:38:04,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 01:38:04,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 01:38:04,869 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 01:38:04,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 01:38:04,870 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 01:38:04,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 01:38:04,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 01:38:04,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 01:38:04,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 01:38:04,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 01:38:04,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 01:38:04,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 01:38:04,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 01:38:04,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 01:38:04,872 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 01:38:04,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 01:38:04,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 01:38:04,872 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 01:38:04,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 01:38:05,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 01:38:05,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 01:38:05,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 01:38:05,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 01:38:05,115 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 01:38:05,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-12-12 01:38:06,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 01:38:06,200 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 01:38:06,200 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-12-12 01:38:06,206 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78051d301/0ab5e4a21145418ab344af9dca68a6c2/FLAGc7addb087 [2022-12-12 01:38:06,217 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78051d301/0ab5e4a21145418ab344af9dca68a6c2 [2022-12-12 01:38:06,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 01:38:06,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 01:38:06,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 01:38:06,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 01:38:06,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 01:38:06,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731163f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06, skipping insertion in model container [2022-12-12 01:38:06,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 01:38:06,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 01:38:06,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,377 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3373,3386] [2022-12-12 01:38:06,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 01:38:06,389 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 01:38:06,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:38:06,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:38:06,437 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3373,3386] [2022-12-12 01:38:06,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 01:38:06,448 INFO L208 MainTranslator]: Completed translation [2022-12-12 01:38:06,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06 WrapperNode [2022-12-12 01:38:06,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 01:38:06,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 01:38:06,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 01:38:06,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 01:38:06,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,492 INFO L138 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-12-12 01:38:06,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 01:38:06,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 01:38:06,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 01:38:06,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 01:38:06,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 01:38:06,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 01:38:06,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 01:38:06,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 01:38:06,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (1/1) ... [2022-12-12 01:38:06,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 01:38:06,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 01:38:06,552 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 01:38:06,572 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 01:38:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 01:38:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 01:38:06,587 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 01:38:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 01:38:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-12 01:38:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 01:38:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 01:38:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 01:38:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 01:38:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 01:38:06,590 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 01:38:06,655 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 01:38:06,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 01:38:06,918 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 01:38:06,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 01:38:06,960 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-12 01:38:06,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:38:06 BoogieIcfgContainer [2022-12-12 01:38:06,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 01:38:06,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 01:38:06,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 01:38:06,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 01:38:06,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 01:38:06" (1/3) ... [2022-12-12 01:38:06,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a3a742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:38:06, skipping insertion in model container [2022-12-12 01:38:06,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:38:06" (2/3) ... [2022-12-12 01:38:06,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a3a742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:38:06, skipping insertion in model container [2022-12-12 01:38:06,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:38:06" (3/3) ... [2022-12-12 01:38:06,973 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-12-12 01:38:06,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 01:38:06,988 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 01:38:06,988 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 01:38:07,054 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-12 01:38:07,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 128 transitions, 288 flow [2022-12-12 01:38:07,128 INFO L130 PetriNetUnfolder]: 10/124 cut-off events. [2022-12-12 01:38:07,129 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-12 01:38:07,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 124 events. 10/124 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-12 01:38:07,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 128 transitions, 288 flow [2022-12-12 01:38:07,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 112 transitions, 248 flow [2022-12-12 01:38:07,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 01:38:07,149 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;@1cf24a7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 01:38:07,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-12 01:38:07,180 INFO L130 PetriNetUnfolder]: 10/111 cut-off events. [2022-12-12 01:38:07,180 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-12 01:38:07,180 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:07,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:07,181 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 01:38:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash -567242031, now seen corresponding path program 1 times [2022-12-12 01:38:07,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:07,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177346223] [2022-12-12 01:38:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:07,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:07,957 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 01:38:07,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:07,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177346223] [2022-12-12 01:38:07,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177346223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:38:07,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:38:07,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 01:38:07,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052618690] [2022-12-12 01:38:07,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:38:07,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 01:38:07,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 01:38:08,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 01:38:08,007 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 128 [2022-12-12 01:38:08,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 112 transitions, 248 flow. Second operand has 7 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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 01:38:08,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:08,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 128 [2022-12-12 01:38:08,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:38:08,269 INFO L130 PetriNetUnfolder]: 137/472 cut-off events. [2022-12-12 01:38:08,269 INFO L131 PetriNetUnfolder]: For 115/116 co-relation queries the response was YES. [2022-12-12 01:38:08,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 472 events. 137/472 cut-off events. For 115/116 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1903 event pairs, 8 based on Foata normal form. 141/560 useless extension candidates. Maximal degree in co-relation 553. Up to 187 conditions per place. [2022-12-12 01:38:08,278 INFO L137 encePairwiseOnDemand]: 110/128 looper letters, 27 selfloop transitions, 7 changer transitions 7/121 dead transitions. [2022-12-12 01:38:08,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 121 transitions, 369 flow [2022-12-12 01:38:08,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 01:38:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 01:38:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 908 transitions. [2022-12-12 01:38:08,295 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7881944444444444 [2022-12-12 01:38:08,299 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 8 predicate places. [2022-12-12 01:38:08,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 121 transitions, 369 flow [2022-12-12 01:38:08,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 114 transitions, 338 flow [2022-12-12 01:38:08,306 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 338 flow [2022-12-12 01:38:08,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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 01:38:08,307 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:08,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:08,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 01:38:08,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:38:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2073481894, now seen corresponding path program 1 times [2022-12-12 01:38:08,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:08,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967235636] [2022-12-12 01:38:08,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:08,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:09,113 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 01:38:09,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:09,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967235636] [2022-12-12 01:38:09,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967235636] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 01:38:09,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363608477] [2022-12-12 01:38:09,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:09,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 01:38:09,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 01:38:09,117 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 01:38:09,123 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 01:38:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:09,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-12 01:38:09,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 01:38:09,457 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 01:38:09,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 01:38:09,675 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 01:38:09,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363608477] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 01:38:09,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 01:38:09,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 21 [2022-12-12 01:38:09,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734140545] [2022-12-12 01:38:09,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:38:09,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 01:38:09,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 01:38:09,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-12-12 01:38:09,680 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 128 [2022-12-12 01:38:09,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 338 flow. Second operand has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 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 01:38:09,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:09,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 128 [2022-12-12 01:38:09,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:38:10,396 INFO L130 PetriNetUnfolder]: 2727/5175 cut-off events. [2022-12-12 01:38:10,397 INFO L131 PetriNetUnfolder]: For 2653/3403 co-relation queries the response was YES. [2022-12-12 01:38:10,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11060 conditions, 5175 events. 2727/5175 cut-off events. For 2653/3403 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 36461 event pairs, 175 based on Foata normal form. 44/4560 useless extension candidates. Maximal degree in co-relation 8180. Up to 1395 conditions per place. [2022-12-12 01:38:10,431 INFO L137 encePairwiseOnDemand]: 114/128 looper letters, 160 selfloop transitions, 40 changer transitions 0/268 dead transitions. [2022-12-12 01:38:10,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 268 transitions, 1356 flow [2022-12-12 01:38:10,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 01:38:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 01:38:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1250 transitions. [2022-12-12 01:38:10,433 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7512019230769231 [2022-12-12 01:38:10,434 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 14 predicate places. [2022-12-12 01:38:10,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 268 transitions, 1356 flow [2022-12-12 01:38:10,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 268 transitions, 1356 flow [2022-12-12 01:38:10,458 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 268 transitions, 1356 flow [2022-12-12 01:38:10,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 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 01:38:10,459 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:10,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:10,465 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 01:38:10,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 01:38:10,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:38:10,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:10,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1160906048, now seen corresponding path program 2 times [2022-12-12 01:38:10,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:10,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454082581] [2022-12-12 01:38:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:10,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:10,857 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 01:38:10,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:10,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454082581] [2022-12-12 01:38:10,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454082581] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 01:38:10,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883451486] [2022-12-12 01:38:10,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 01:38:10,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 01:38:10,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 01:38:10,859 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 01:38:10,904 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 01:38:10,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 01:38:10,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 01:38:10,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 01:38:10,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 01:38:11,059 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 01:38:11,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 01:38:11,123 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 01:38:11,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883451486] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 01:38:11,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 01:38:11,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-12-12 01:38:11,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300098203] [2022-12-12 01:38:11,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:38:11,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 01:38:11,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:11,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 01:38:11,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-12 01:38:11,125 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 128 [2022-12-12 01:38:11,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 268 transitions, 1356 flow. Second operand has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:38:11,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:11,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 128 [2022-12-12 01:38:11,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:38:12,284 INFO L130 PetriNetUnfolder]: 6839/13105 cut-off events. [2022-12-12 01:38:12,284 INFO L131 PetriNetUnfolder]: For 16806/27424 co-relation queries the response was YES. [2022-12-12 01:38:12,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34392 conditions, 13105 events. 6839/13105 cut-off events. For 16806/27424 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 112431 event pairs, 509 based on Foata normal form. 263/11051 useless extension candidates. Maximal degree in co-relation 24613. Up to 3584 conditions per place. [2022-12-12 01:38:12,392 INFO L137 encePairwiseOnDemand]: 117/128 looper letters, 354 selfloop transitions, 58 changer transitions 0/533 dead transitions. [2022-12-12 01:38:12,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 533 transitions, 4020 flow [2022-12-12 01:38:12,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 01:38:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 01:38:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 655 transitions. [2022-12-12 01:38:12,394 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8528645833333334 [2022-12-12 01:38:12,395 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 19 predicate places. [2022-12-12 01:38:12,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 533 transitions, 4020 flow [2022-12-12 01:38:12,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 533 transitions, 4020 flow [2022-12-12 01:38:12,468 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 533 transitions, 4020 flow [2022-12-12 01:38:12,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:38:12,471 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:12,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:12,479 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 01:38:12,677 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,SelfDestructingSolverStorable2 [2022-12-12 01:38:12,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:38:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash 339651146, now seen corresponding path program 3 times [2022-12-12 01:38:12,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:12,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864078427] [2022-12-12 01:38:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:12,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:13,154 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 01:38:13,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:13,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864078427] [2022-12-12 01:38:13,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864078427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:38:13,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:38:13,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 01:38:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844297660] [2022-12-12 01:38:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:38:13,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 01:38:13,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:13,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 01:38:13,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-12 01:38:13,157 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 128 [2022-12-12 01:38:13,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 533 transitions, 4020 flow. Second operand has 9 states, 9 states have (on average 86.22222222222223) internal successors, (776), 9 states have internal predecessors, (776), 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 01:38:13,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:13,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 128 [2022-12-12 01:38:13,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:38:15,446 INFO L130 PetriNetUnfolder]: 11065/20987 cut-off events. [2022-12-12 01:38:15,446 INFO L131 PetriNetUnfolder]: For 44053/207382 co-relation queries the response was YES. [2022-12-12 01:38:15,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71063 conditions, 20987 events. 11065/20987 cut-off events. For 44053/207382 co-relation queries the response was YES. Maximal size of possible extension queue 1315. Compared 192719 event pairs, 460 based on Foata normal form. 1348/19018 useless extension candidates. Maximal degree in co-relation 47843. Up to 6406 conditions per place. [2022-12-12 01:38:15,599 INFO L137 encePairwiseOnDemand]: 114/128 looper letters, 920 selfloop transitions, 259 changer transitions 0/1250 dead transitions. [2022-12-12 01:38:15,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 1250 transitions, 12478 flow [2022-12-12 01:38:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 01:38:15,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 01:38:15,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 969 transitions. [2022-12-12 01:38:15,602 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.75703125 [2022-12-12 01:38:15,602 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 28 predicate places. [2022-12-12 01:38:15,602 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 1250 transitions, 12478 flow [2022-12-12 01:38:15,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 1250 transitions, 12478 flow [2022-12-12 01:38:15,713 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 1250 transitions, 12478 flow [2022-12-12 01:38:15,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 86.22222222222223) internal successors, (776), 9 states have internal predecessors, (776), 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 01:38:15,713 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:15,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:15,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 01:38:15,714 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:38:15,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:15,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1652943192, now seen corresponding path program 4 times [2022-12-12 01:38:15,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:15,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545213268] [2022-12-12 01:38:15,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:15,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:15,992 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 01:38:15,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:15,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545213268] [2022-12-12 01:38:15,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545213268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:38:15,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:38:15,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 01:38:15,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694306548] [2022-12-12 01:38:15,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:38:15,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 01:38:15,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:15,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 01:38:15,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-12 01:38:15,995 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 128 [2022-12-12 01:38:15,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 1250 transitions, 12478 flow. Second operand has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 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 01:38:15,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:15,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 128 [2022-12-12 01:38:15,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:38:19,184 INFO L130 PetriNetUnfolder]: 11996/25890 cut-off events. [2022-12-12 01:38:19,184 INFO L131 PetriNetUnfolder]: For 78128/458256 co-relation queries the response was YES. [2022-12-12 01:38:19,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97831 conditions, 25890 events. 11996/25890 cut-off events. For 78128/458256 co-relation queries the response was YES. Maximal size of possible extension queue 1577. Compared 270450 event pairs, 614 based on Foata normal form. 3205/25170 useless extension candidates. Maximal degree in co-relation 63407. Up to 7256 conditions per place. [2022-12-12 01:38:19,344 INFO L137 encePairwiseOnDemand]: 115/128 looper letters, 1591 selfloop transitions, 349 changer transitions 0/2011 dead transitions. [2022-12-12 01:38:19,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 2011 transitions, 24399 flow [2022-12-12 01:38:19,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 01:38:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 01:38:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1047 transitions. [2022-12-12 01:38:19,350 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7436079545454546 [2022-12-12 01:38:19,352 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 38 predicate places. [2022-12-12 01:38:19,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 2011 transitions, 24399 flow [2022-12-12 01:38:19,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 2011 transitions, 24399 flow [2022-12-12 01:38:19,569 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 2011 transitions, 24399 flow [2022-12-12 01:38:19,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 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 01:38:19,570 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:19,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:19,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 01:38:19,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:38:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1064359726, now seen corresponding path program 1 times [2022-12-12 01:38:19,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:19,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987053352] [2022-12-12 01:38:19,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:19,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:19,775 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 01:38:19,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:19,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987053352] [2022-12-12 01:38:19,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987053352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:38:19,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:38:19,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 01:38:19,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689958017] [2022-12-12 01:38:19,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:38:19,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 01:38:19,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:19,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 01:38:19,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 01:38:19,780 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 128 [2022-12-12 01:38:19,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 2011 transitions, 24399 flow. Second operand has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:38:19,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:19,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 128 [2022-12-12 01:38:19,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:38:24,182 INFO L130 PetriNetUnfolder]: 13927/30663 cut-off events. [2022-12-12 01:38:24,183 INFO L131 PetriNetUnfolder]: For 160069/635370 co-relation queries the response was YES. [2022-12-12 01:38:24,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129789 conditions, 30663 events. 13927/30663 cut-off events. For 160069/635370 co-relation queries the response was YES. Maximal size of possible extension queue 1851. Compared 333884 event pairs, 696 based on Foata normal form. 4225/30719 useless extension candidates. Maximal degree in co-relation 88096. Up to 9228 conditions per place. [2022-12-12 01:38:24,384 INFO L137 encePairwiseOnDemand]: 118/128 looper letters, 1758 selfloop transitions, 304 changer transitions 0/2349 dead transitions. [2022-12-12 01:38:24,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 2349 transitions, 32871 flow [2022-12-12 01:38:24,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 01:38:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 01:38:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 648 transitions. [2022-12-12 01:38:24,385 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.84375 [2022-12-12 01:38:24,386 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 43 predicate places. [2022-12-12 01:38:24,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 2349 transitions, 32871 flow [2022-12-12 01:38:24,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 2349 transitions, 32871 flow [2022-12-12 01:38:24,536 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 2349 transitions, 32871 flow [2022-12-12 01:38:24,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:38:24,537 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:24,537 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:24,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 01:38:24,537 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:38:24,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash -537919992, now seen corresponding path program 1 times [2022-12-12 01:38:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:24,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093965195] [2022-12-12 01:38:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:24,680 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 01:38:24,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:24,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093965195] [2022-12-12 01:38:24,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093965195] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 01:38:24,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684971727] [2022-12-12 01:38:24,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:24,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 01:38:24,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 01:38:24,684 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 01:38:24,686 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 01:38:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:24,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 01:38:24,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 01:38:24,821 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 01:38:24,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 01:38:24,880 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 01:38:24,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684971727] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 01:38:24,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 01:38:24,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-12-12 01:38:24,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151302303] [2022-12-12 01:38:24,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 01:38:24,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 01:38:24,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:24,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 01:38:24,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-12 01:38:24,882 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 128 [2022-12-12 01:38:24,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 2349 transitions, 32871 flow. Second operand has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 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 01:38:24,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:24,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 128 [2022-12-12 01:38:24,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:38:36,261 INFO L130 PetriNetUnfolder]: 31186/61471 cut-off events. [2022-12-12 01:38:36,261 INFO L131 PetriNetUnfolder]: For 480488/1318174 co-relation queries the response was YES. [2022-12-12 01:38:36,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302166 conditions, 61471 events. 31186/61471 cut-off events. For 480488/1318174 co-relation queries the response was YES. Maximal size of possible extension queue 4178. Compared 681045 event pairs, 1416 based on Foata normal form. 5182/57027 useless extension candidates. Maximal degree in co-relation 258095. Up to 24248 conditions per place. [2022-12-12 01:38:36,773 INFO L137 encePairwiseOnDemand]: 118/128 looper letters, 2966 selfloop transitions, 841 changer transitions 0/4400 dead transitions. [2022-12-12 01:38:36,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 4400 transitions, 71746 flow [2022-12-12 01:38:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 01:38:36,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 01:38:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1398 transitions. [2022-12-12 01:38:36,776 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8401442307692307 [2022-12-12 01:38:36,777 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 55 predicate places. [2022-12-12 01:38:36,777 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 4400 transitions, 71746 flow [2022-12-12 01:38:37,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 4400 transitions, 71746 flow [2022-12-12 01:38:37,131 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 4400 transitions, 71746 flow [2022-12-12 01:38:37,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 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 01:38:37,131 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:38:37,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:37,149 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 01:38:37,336 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 01:38:37,337 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:38:37,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:38:37,337 INFO L85 PathProgramCache]: Analyzing trace with hash -190717850, now seen corresponding path program 2 times [2022-12-12 01:38:37,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:38:37,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902844665] [2022-12-12 01:38:37,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:38:37,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:38:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:38:37,509 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 01:38:37,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:38:37,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902844665] [2022-12-12 01:38:37,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902844665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:38:37,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:38:37,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 01:38:37,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984511222] [2022-12-12 01:38:37,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:38:37,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 01:38:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:38:37,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 01:38:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 01:38:37,511 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 128 [2022-12-12 01:38:37,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 4400 transitions, 71746 flow. Second operand has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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 01:38:37,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:38:37,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 128 [2022-12-12 01:38:37,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:39:08,400 INFO L130 PetriNetUnfolder]: 51070/99064 cut-off events. [2022-12-12 01:39:08,401 INFO L131 PetriNetUnfolder]: For 789180/2076537 co-relation queries the response was YES. [2022-12-12 01:39:08,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554087 conditions, 99064 events. 51070/99064 cut-off events. For 789180/2076537 co-relation queries the response was YES. Maximal size of possible extension queue 7309. Compared 1152861 event pairs, 1500 based on Foata normal form. 7574/91723 useless extension candidates. Maximal degree in co-relation 461305. Up to 44667 conditions per place. [2022-12-12 01:39:09,294 INFO L137 encePairwiseOnDemand]: 118/128 looper letters, 6306 selfloop transitions, 1650 changer transitions 0/8549 dead transitions. [2022-12-12 01:39:09,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 8549 transitions, 159055 flow [2022-12-12 01:39:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 01:39:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 01:39:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 769 transitions. [2022-12-12 01:39:09,296 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8582589285714286 [2022-12-12 01:39:09,296 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 61 predicate places. [2022-12-12 01:39:09,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 8549 transitions, 159055 flow [2022-12-12 01:39:09,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 8549 transitions, 159055 flow [2022-12-12 01:39:09,942 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 8549 transitions, 159055 flow [2022-12-12 01:39:09,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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 01:39:09,942 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:39:09,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:09,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 01:39:09,943 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:39:09,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:39:09,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1345035518, now seen corresponding path program 3 times [2022-12-12 01:39:09,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:39:09,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293396573] [2022-12-12 01:39:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:39:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:39:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:39:10,146 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 01:39:10,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:39:10,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293396573] [2022-12-12 01:39:10,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293396573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:39:10,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:39:10,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 01:39:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161868106] [2022-12-12 01:39:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:39:10,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 01:39:10,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:39:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 01:39:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-12 01:39:10,150 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 128 [2022-12-12 01:39:10,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 8549 transitions, 159055 flow. Second operand has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 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 01:39:10,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:39:10,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 128 [2022-12-12 01:39:10,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:40:48,633 INFO L130 PetriNetUnfolder]: 70973/142408 cut-off events. [2022-12-12 01:40:48,633 INFO L131 PetriNetUnfolder]: For 1370004/6393782 co-relation queries the response was YES. [2022-12-12 01:40:49,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 877710 conditions, 142408 events. 70973/142408 cut-off events. For 1370004/6393782 co-relation queries the response was YES. Maximal size of possible extension queue 11346. Compared 1800482 event pairs, 2313 based on Foata normal form. 9220/131484 useless extension candidates. Maximal degree in co-relation 736160. Up to 68075 conditions per place. [2022-12-12 01:40:50,036 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 12396 selfloop transitions, 845 changer transitions 0/13343 dead transitions. [2022-12-12 01:40:50,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 13343 transitions, 272705 flow [2022-12-12 01:40:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 01:40:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 01:40:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1050 transitions. [2022-12-12 01:40:50,038 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7457386363636364 [2022-12-12 01:40:50,039 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 71 predicate places. [2022-12-12 01:40:50,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 13343 transitions, 272705 flow [2022-12-12 01:40:51,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 13343 transitions, 272705 flow [2022-12-12 01:40:51,123 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 13343 transitions, 272705 flow [2022-12-12 01:40:51,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 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 01:40:51,124 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:40:51,124 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:51,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 01:40:51,124 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:40:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:40:51,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2103260662, now seen corresponding path program 1 times [2022-12-12 01:40:51,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:40:51,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558105734] [2022-12-12 01:40:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:40:51,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:40:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:40:51,255 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 01:40:51,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:40:51,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558105734] [2022-12-12 01:40:51,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558105734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:40:51,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:40:51,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 01:40:51,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435005009] [2022-12-12 01:40:51,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:40:51,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 01:40:51,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:40:51,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 01:40:51,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 01:40:51,257 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 128 [2022-12-12 01:40:51,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 13343 transitions, 272705 flow. Second operand has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:40:51,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:40:51,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 128 [2022-12-12 01:40:51,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:44:55,470 INFO L130 PetriNetUnfolder]: 71247/147481 cut-off events. [2022-12-12 01:44:55,471 INFO L131 PetriNetUnfolder]: For 1575770/7701751 co-relation queries the response was YES. [2022-12-12 01:44:56,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977315 conditions, 147481 events. 71247/147481 cut-off events. For 1575770/7701751 co-relation queries the response was YES. Maximal size of possible extension queue 11718. Compared 1923476 event pairs, 2175 based on Foata normal form. 11646/139360 useless extension candidates. Maximal degree in co-relation 817769. Up to 69783 conditions per place. [2022-12-12 01:44:56,966 INFO L137 encePairwiseOnDemand]: 118/128 looper letters, 11223 selfloop transitions, 2422 changer transitions 59/14569 dead transitions. [2022-12-12 01:44:56,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 14569 transitions, 326478 flow [2022-12-12 01:44:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 01:44:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 01:44:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 644 transitions. [2022-12-12 01:44:56,968 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8385416666666666 [2022-12-12 01:44:56,968 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 76 predicate places. [2022-12-12 01:44:56,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 14569 transitions, 326478 flow [2022-12-12 01:44:58,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 14510 transitions, 325003 flow [2022-12-12 01:44:58,013 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 14510 transitions, 325003 flow [2022-12-12 01:44:58,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:44:58,014 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:44:58,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:58,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 01:44:58,014 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 01:44:58,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:44:58,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1183530388, now seen corresponding path program 2 times [2022-12-12 01:44:58,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:44:58,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690037224] [2022-12-12 01:44:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:44:58,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:44:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:44:58,179 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 01:44:58,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:44:58,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690037224] [2022-12-12 01:44:58,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690037224] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 01:44:58,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510815929] [2022-12-12 01:44:58,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 01:44:58,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 01:44:58,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 01:44:58,182 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 01:44:58,183 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 01:44:58,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 01:44:58,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 01:44:58,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 01:44:58,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 01:44:58,343 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 01:44:58,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 01:44:58,420 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 01:44:58,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510815929] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 01:44:58,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 01:44:58,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-12-12 01:44:58,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723006011] [2022-12-12 01:44:58,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:44:58,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 01:44:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:44:58,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 01:44:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-12 01:44:58,422 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 128 [2022-12-12 01:44:58,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 14510 transitions, 325003 flow. Second operand has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:44:58,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:44:58,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 128 [2022-12-12 01:44:58,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:50:14,004 INFO L130 PetriNetUnfolder]: 75682/163282 cut-off events. [2022-12-12 01:50:14,004 INFO L131 PetriNetUnfolder]: For 2001464/6582005 co-relation queries the response was YES. [2022-12-12 01:50:14,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162916 conditions, 163282 events. 75682/163282 cut-off events. For 2001464/6582005 co-relation queries the response was YES. Maximal size of possible extension queue 13404. Compared 2232039 event pairs, 2481 based on Foata normal form. 16709/159163 useless extension candidates. Maximal degree in co-relation 963054. Up to 74372 conditions per place. [2022-12-12 01:50:15,653 INFO L137 encePairwiseOnDemand]: 118/128 looper letters, 15227 selfloop transitions, 829 changer transitions 75/16996 dead transitions. [2022-12-12 01:50:15,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 16996 transitions, 416321 flow [2022-12-12 01:50:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 01:50:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 01:50:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 650 transitions. [2022-12-12 01:50:15,655 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8463541666666666 [2022-12-12 01:50:15,655 INFO L295 CegarLoopForPetriNet]: 115 programPoint places, 81 predicate places. [2022-12-12 01:50:15,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 16996 transitions, 416321 flow [2022-12-12 01:50:16,845 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 16921 transitions, 414374 flow [2022-12-12 01:50:16,845 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 16921 transitions, 414374 flow [2022-12-12 01:50:16,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:50:16,845 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:50:16,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:50:16,853 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 01:50:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 01:50:17,046 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 01:50:17,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:50:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1129464996, now seen corresponding path program 3 times [2022-12-12 01:50:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:50:17,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104085114] [2022-12-12 01:50:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:50:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:50:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:50:17,176 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 01:50:17,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:50:17,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104085114] [2022-12-12 01:50:17,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104085114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:50:17,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:50:17,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 01:50:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721220078] [2022-12-12 01:50:17,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:50:17,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 01:50:17,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:50:17,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 01:50:17,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 01:50:17,179 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 128 [2022-12-12 01:50:17,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 16921 transitions, 414374 flow. Second operand has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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 01:50:17,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:50:17,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 128 [2022-12-12 01:50:17,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-12 01:51:56,273 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 01:51:56,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 01:51:56,402 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-12 01:51:56,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 01:51:56,402 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (5states, 98/128 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 338926 conditions, 41640 events (23355/41639 cut-off events. For 929310/4174359 co-relation queries the response was YES. Maximal size of possible extension queue 10015. Compared 472336 event pairs, 523 based on Foata normal form. 9790/52546 useless extension candidates. Maximal degree in co-relation 334292. Up to 19032 conditions per place.). [2022-12-12 01:51:56,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-12 01:51:56,404 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-12 01:51:56,404 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-12 01:51:56,404 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-12 01:51:56,404 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 1, 1] [2022-12-12 01:51:56,406 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 01:51:56,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 01:51:56,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 01:51:56 BasicIcfg [2022-12-12 01:51:56,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 01:51:56,410 INFO L158 Benchmark]: Toolchain (without parser) took 830190.22ms. Allocated memory was 190.8MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 165.5MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 4.5GB. Max. memory is 8.0GB. [2022-12-12 01:51:56,410 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory was 166.4MB in the beginning and 166.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 01:51:56,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.62ms. Allocated memory is still 190.8MB. Free memory was 165.5MB in the beginning and 151.5MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 01:51:56,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.25ms. Allocated memory is still 190.8MB. Free memory was 151.0MB in the beginning and 149.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 01:51:56,411 INFO L158 Benchmark]: Boogie Preprocessor took 24.34ms. Allocated memory is still 190.8MB. Free memory was 149.4MB in the beginning and 147.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 01:51:56,411 INFO L158 Benchmark]: RCFGBuilder took 443.78ms. Allocated memory is still 190.8MB. Free memory was 147.8MB in the beginning and 128.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 01:51:56,412 INFO L158 Benchmark]: TraceAbstraction took 829445.62ms. Allocated memory was 190.8MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 127.9MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. [2022-12-12 01:51:56,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory was 166.4MB in the beginning and 166.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.62ms. Allocated memory is still 190.8MB. Free memory was 165.5MB in the beginning and 151.5MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.25ms. Allocated memory is still 190.8MB. Free memory was 151.0MB in the beginning and 149.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.34ms. Allocated memory is still 190.8MB. Free memory was 149.4MB in the beginning and 147.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 443.78ms. Allocated memory is still 190.8MB. Free memory was 147.8MB in the beginning and 128.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 829445.62ms. Allocated memory was 190.8MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 127.9MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (5states, 98/128 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 338926 conditions, 41640 events (23355/41639 cut-off events. For 929310/4174359 co-relation queries the response was YES. Maximal size of possible extension queue 10015. Compared 472336 event pairs, 523 based on Foata normal form. 9790/52546 useless extension candidates. Maximal degree in co-relation 334292. Up to 19032 conditions per place.). - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (5states, 98/128 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 338926 conditions, 41640 events (23355/41639 cut-off events. For 929310/4174359 co-relation queries the response was YES. Maximal size of possible extension queue 10015. Compared 472336 event pairs, 523 based on Foata normal form. 9790/52546 useless extension candidates. Maximal degree in co-relation 334292. Up to 19032 conditions per place.). - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (5states, 98/128 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 338926 conditions, 41640 events (23355/41639 cut-off events. For 929310/4174359 co-relation queries the response was YES. Maximal size of possible extension queue 10015. Compared 472336 event pairs, 523 based on Foata normal form. 9790/52546 useless extension candidates. Maximal degree in co-relation 334292. Up to 19032 conditions per place.). - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (5states, 98/128 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 338926 conditions, 41640 events (23355/41639 cut-off events. For 929310/4174359 co-relation queries the response was YES. Maximal size of possible extension queue 10015. Compared 472336 event pairs, 523 based on Foata normal form. 9790/52546 useless extension candidates. Maximal degree in co-relation 334292. Up to 19032 conditions per place.). - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (5states, 98/128 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 338926 conditions, 41640 events (23355/41639 cut-off events. For 929310/4174359 co-relation queries the response was YES. Maximal size of possible extension queue 10015. Compared 472336 event pairs, 523 based on Foata normal form. 9790/52546 useless extension candidates. Maximal degree in co-relation 334292. Up to 19032 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 151 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 4.9s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 829.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 818.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 857 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 857 mSDsluCounter, 480 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 294 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2128 IncrementalHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 186 mSDtfsCounter, 2128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 883 GetRequests, 755 SyntacticMatches, 4 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=414374occurred in iteration=11, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 3453 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1517 NumberOfCodeBlocks, 1517 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1877 ConstructedInterpolants, 0 QuantifiedInterpolants, 7929 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1048 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 10/19 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