/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_87-lists_racefree_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 21:39:50,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 21:39:50,839 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 21:39:50,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 21:39:50,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 21:39:50,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 21:39:50,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 21:39:50,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 21:39:50,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 21:39:50,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 21:39:50,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 21:39:50,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 21:39:50,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 21:39:50,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 21:39:50,863 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 21:39:50,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 21:39:50,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 21:39:50,864 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 21:39:50,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 21:39:50,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 21:39:50,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 21:39:50,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 21:39:50,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 21:39:50,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 21:39:50,872 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 21:39:50,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 21:39:50,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 21:39:50,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 21:39:50,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 21:39:50,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 21:39:50,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 21:39:50,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 21:39:50,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 21:39:50,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 21:39:50,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 21:39:50,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 21:39:50,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 21:39:50,876 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 21:39:50,876 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 21:39:50,876 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 21:39:50,876 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 21:39:50,876 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-03 21:39:51,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 21:39:51,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 21:39:51,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 21:39:51,057 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 21:39:51,058 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 21:39:51,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_87-lists_racefree_bound2.i [2023-08-03 21:39:51,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 21:39:52,192 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 21:39:52,192 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_87-lists_racefree_bound2.i [2023-08-03 21:39:52,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90458c2ca/fb6d8d83fd014d87b915b836964fae9f/FLAG60a460c1b [2023-08-03 21:39:52,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90458c2ca/fb6d8d83fd014d87b915b836964fae9f [2023-08-03 21:39:52,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 21:39:52,225 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 21:39:52,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 21:39:52,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 21:39:52,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 21:39:52,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b1e8946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52, skipping insertion in model container [2023-08-03 21:39:52,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,277 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 21:39:52,546 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_87-lists_racefree_bound2.i[47038,47051] [2023-08-03 21:39:52,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 21:39:52,648 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 21:39:52,658 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-03 21:39:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-03 21:39:52,691 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_87-lists_racefree_bound2.i[47038,47051] [2023-08-03 21:39:52,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 21:39:52,741 INFO L206 MainTranslator]: Completed translation [2023-08-03 21:39:52,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52 WrapperNode [2023-08-03 21:39:52,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 21:39:52,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 21:39:52,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 21:39:52,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 21:39:52,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,785 INFO L138 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 228 [2023-08-03 21:39:52,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 21:39:52,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 21:39:52,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 21:39:52,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 21:39:52,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 21:39:52,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 21:39:52,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 21:39:52,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 21:39:52,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (1/1) ... [2023-08-03 21:39:52,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 21:39:52,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:39:52,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-03 21:39:52,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-03 21:39:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 21:39:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-03 21:39:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-03 21:39:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-03 21:39:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 21:39:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 21:39:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-03 21:39:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-03 21:39:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 21:39:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-03 21:39:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-03 21:39:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 21:39:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-03 21:39:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 21:39:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 21:39:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 21:39:52,897 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 21:39:53,037 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 21:39:53,038 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 21:39:53,321 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 21:39:53,326 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 21:39:53,326 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-03 21:39:53,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 09:39:53 BoogieIcfgContainer [2023-08-03 21:39:53,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 21:39:53,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 21:39:53,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 21:39:53,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 21:39:53,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 09:39:52" (1/3) ... [2023-08-03 21:39:53,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e77590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 09:39:53, skipping insertion in model container [2023-08-03 21:39:53,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:39:52" (2/3) ... [2023-08-03 21:39:53,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e77590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 09:39:53, skipping insertion in model container [2023-08-03 21:39:53,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 09:39:53" (3/3) ... [2023-08-03 21:39:53,332 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_28-race_reach_87-lists_racefree_bound2.i [2023-08-03 21:39:53,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 21:39:53,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 21:39:53,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 21:39:53,344 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 21:39:53,429 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-03 21:39:53,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 229 transitions, 480 flow [2023-08-03 21:39:53,583 INFO L124 PetriNetUnfolderBase]: 54/427 cut-off events. [2023-08-03 21:39:53,584 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2023-08-03 21:39:53,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 427 events. 54/427 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1691 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-08-03 21:39:53,593 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 229 transitions, 480 flow [2023-08-03 21:39:53,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 227 transitions, 470 flow [2023-08-03 21:39:53,602 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 21:39:53,613 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 227 transitions, 470 flow [2023-08-03 21:39:53,617 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 227 transitions, 470 flow [2023-08-03 21:39:53,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 227 transitions, 470 flow [2023-08-03 21:39:53,664 INFO L124 PetriNetUnfolderBase]: 50/415 cut-off events. [2023-08-03 21:39:53,665 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-08-03 21:39:53,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 415 events. 50/415 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1613 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2023-08-03 21:39:53,690 INFO L119 LiptonReduction]: Number of co-enabled transitions 15336 [2023-08-03 21:39:58,119 INFO L134 LiptonReduction]: Checked pairs total: 24023 [2023-08-03 21:39:58,119 INFO L136 LiptonReduction]: Total number of compositions: 181 [2023-08-03 21:39:58,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-03 21:39:58,131 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=true, 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;@7d623f78, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 21:39:58,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-03 21:39:58,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 21:39:58,136 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2023-08-03 21:39:58,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 21:39:58,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:39:58,136 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-03 21:39:58,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:39:58,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:39:58,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1192865422, now seen corresponding path program 1 times [2023-08-03 21:39:58,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:39:58,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908952665] [2023-08-03 21:39:58,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:39:58,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:39:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:39:58,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:39:58,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 21:39:58,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908952665] [2023-08-03 21:39:58,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908952665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 21:39:58,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 21:39:58,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 21:39:58,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927319445] [2023-08-03 21:39:58,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 21:39:58,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 21:39:58,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 21:39:58,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 21:39:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 21:39:58,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 410 [2023-08-03 21:39:58,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 66 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:58,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 21:39:58,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 410 [2023-08-03 21:39:58,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 21:39:58,732 INFO L124 PetriNetUnfolderBase]: 2806/4839 cut-off events. [2023-08-03 21:39:58,732 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-08-03 21:39:58,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9314 conditions, 4839 events. 2806/4839 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28373 event pairs, 2599 based on Foata normal form. 240/4248 useless extension candidates. Maximal degree in co-relation 8300. Up to 4402 conditions per place. [2023-08-03 21:39:58,745 INFO L140 encePairwiseOnDemand]: 396/410 looper letters, 36 selfloop transitions, 2 changer transitions 9/56 dead transitions. [2023-08-03 21:39:58,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 222 flow [2023-08-03 21:39:58,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 21:39:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 21:39:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2023-08-03 21:39:58,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5382113821138211 [2023-08-03 21:39:58,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2023-08-03 21:39:58,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2023-08-03 21:39:58,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 21:39:58,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2023-08-03 21:39:58,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:58,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:58,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:58,774 INFO L175 Difference]: Start difference. First operand has 55 places, 66 transitions, 148 flow. Second operand 3 states and 662 transitions. [2023-08-03 21:39:58,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 222 flow [2023-08-03 21:39:58,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 21:39:58,782 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 114 flow [2023-08-03 21:39:58,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2023-08-03 21:39:58,787 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2023-08-03 21:39:58,787 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 114 flow [2023-08-03 21:39:58,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:58,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:39:58,788 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-03 21:39:58,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 21:39:58,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:39:58,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:39:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash 450522637, now seen corresponding path program 1 times [2023-08-03 21:39:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:39:58,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214006309] [2023-08-03 21:39:58,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:39:58,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:39:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:39:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:39:58,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 21:39:58,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214006309] [2023-08-03 21:39:58,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214006309] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 21:39:58,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257659061] [2023-08-03 21:39:58,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:39:58,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:39:58,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:39:58,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 21:39:58,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-03 21:39:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:39:59,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-03 21:39:59,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 21:39:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:39:59,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 21:39:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:39:59,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257659061] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 21:39:59,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 21:39:59,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-03 21:39:59,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058586475] [2023-08-03 21:39:59,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 21:39:59,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-03 21:39:59,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 21:39:59,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-03 21:39:59,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-03 21:39:59,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-03 21:39:59,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 114 flow. Second operand has 7 states, 7 states have (on average 201.57142857142858) internal successors, (1411), 7 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:59,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 21:39:59,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-03 21:39:59,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 21:39:59,291 INFO L124 PetriNetUnfolderBase]: 1126/2034 cut-off events. [2023-08-03 21:39:59,291 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-03 21:39:59,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3909 conditions, 2034 events. 1126/2034 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10411 event pairs, 1053 based on Foata normal form. 0/1722 useless extension candidates. Maximal degree in co-relation 3896. Up to 1829 conditions per place. [2023-08-03 21:39:59,297 INFO L140 encePairwiseOnDemand]: 407/410 looper letters, 36 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2023-08-03 21:39:59,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 50 transitions, 208 flow [2023-08-03 21:39:59,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-03 21:39:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-03 21:39:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1244 transitions. [2023-08-03 21:39:59,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5056910569105691 [2023-08-03 21:39:59,300 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1244 transitions. [2023-08-03 21:39:59,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1244 transitions. [2023-08-03 21:39:59,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 21:39:59,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1244 transitions. [2023-08-03 21:39:59,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.33333333333334) internal successors, (1244), 6 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:59,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:59,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:59,306 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 114 flow. Second operand 6 states and 1244 transitions. [2023-08-03 21:39:59,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 50 transitions, 208 flow [2023-08-03 21:39:59,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 204 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-03 21:39:59,307 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 146 flow [2023-08-03 21:39:59,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2023-08-03 21:39:59,308 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2023-08-03 21:39:59,308 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 146 flow [2023-08-03 21:39:59,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 201.57142857142858) internal successors, (1411), 7 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:59,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:39:59,309 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-08-03 21:39:59,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-03 21:39:59,515 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 [2023-08-03 21:39:59,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:39:59,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:39:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1554636750, now seen corresponding path program 2 times [2023-08-03 21:39:59,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:39:59,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174583314] [2023-08-03 21:39:59,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:39:59,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:39:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:39:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:39:59,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 21:39:59,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174583314] [2023-08-03 21:39:59,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174583314] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 21:39:59,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969858988] [2023-08-03 21:39:59,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-03 21:39:59,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:39:59,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:39:59,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 21:39:59,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-03 21:39:59,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-03 21:39:59,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 21:39:59,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-03 21:39:59,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 21:39:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:39:59,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 21:39:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:39:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969858988] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 21:39:59,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 21:39:59,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-03 21:39:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920534479] [2023-08-03 21:39:59,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 21:39:59,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-03 21:39:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 21:39:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-03 21:39:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-03 21:39:59,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-03 21:39:59,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 146 flow. Second operand has 13 states, 13 states have (on average 201.30769230769232) internal successors, (2617), 13 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:39:59,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 21:39:59,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-03 21:39:59,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 21:40:00,073 INFO L124 PetriNetUnfolderBase]: 1126/2040 cut-off events. [2023-08-03 21:40:00,073 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-03 21:40:00,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3946 conditions, 2040 events. 1126/2040 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10403 event pairs, 1053 based on Foata normal form. 6/1735 useless extension candidates. Maximal degree in co-relation 3887. Up to 1829 conditions per place. [2023-08-03 21:40:00,080 INFO L140 encePairwiseOnDemand]: 407/410 looper letters, 36 selfloop transitions, 11 changer transitions 0/56 dead transitions. [2023-08-03 21:40:00,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 56 transitions, 276 flow [2023-08-03 21:40:00,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-03 21:40:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-03 21:40:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2453 transitions. [2023-08-03 21:40:00,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49857723577235774 [2023-08-03 21:40:00,085 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2453 transitions. [2023-08-03 21:40:00,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2453 transitions. [2023-08-03 21:40:00,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 21:40:00,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2453 transitions. [2023-08-03 21:40:00,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 204.41666666666666) internal successors, (2453), 12 states have internal predecessors, (2453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:40:00,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:40:00,096 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:40:00,096 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 146 flow. Second operand 12 states and 2453 transitions. [2023-08-03 21:40:00,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 56 transitions, 276 flow [2023-08-03 21:40:00,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 56 transitions, 262 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-03 21:40:00,100 INFO L231 Difference]: Finished difference. Result has 74 places, 56 transitions, 216 flow [2023-08-03 21:40:00,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=216, PETRI_PLACES=74, PETRI_TRANSITIONS=56} [2023-08-03 21:40:00,101 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 19 predicate places. [2023-08-03 21:40:00,101 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 56 transitions, 216 flow [2023-08-03 21:40:00,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 201.30769230769232) internal successors, (2617), 13 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:40:00,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:40:00,103 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-08-03 21:40:00,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-03 21:40:00,308 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 [2023-08-03 21:40:00,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:40:00,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:40:00,309 INFO L85 PathProgramCache]: Analyzing trace with hash 279626322, now seen corresponding path program 3 times [2023-08-03 21:40:00,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:40:00,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573676240] [2023-08-03 21:40:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:40:00,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:40:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:40:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:40:00,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 21:40:00,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573676240] [2023-08-03 21:40:00,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573676240] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 21:40:00,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228812459] [2023-08-03 21:40:00,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-03 21:40:00,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:40:00,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:40:00,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 21:40:00,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-03 21:43:58,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-03 21:43:58,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 21:43:58,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-03 21:43:58,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 21:43:58,634 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:43:58,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 21:43:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:43:58,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228812459] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 21:43:58,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 21:43:58,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-08-03 21:43:58,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650755889] [2023-08-03 21:43:58,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 21:43:58,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-03 21:43:58,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 21:43:58,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-03 21:43:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-08-03 21:43:58,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-03 21:43:58,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 56 transitions, 216 flow. Second operand has 25 states, 25 states have (on average 201.16) internal successors, (5029), 25 states have internal predecessors, (5029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:43:58,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 21:43:58,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-03 21:43:58,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 21:43:59,127 INFO L124 PetriNetUnfolderBase]: 1126/2052 cut-off events. [2023-08-03 21:43:59,127 INFO L125 PetriNetUnfolderBase]: For 470/470 co-relation queries the response was YES. [2023-08-03 21:43:59,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4030 conditions, 2052 events. 1126/2052 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10403 event pairs, 1053 based on Foata normal form. 12/1753 useless extension candidates. Maximal degree in co-relation 3893. Up to 1829 conditions per place. [2023-08-03 21:43:59,135 INFO L140 encePairwiseOnDemand]: 407/410 looper letters, 36 selfloop transitions, 23 changer transitions 0/68 dead transitions. [2023-08-03 21:43:59,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 68 transitions, 430 flow [2023-08-03 21:43:59,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-03 21:43:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-03 21:43:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4871 transitions. [2023-08-03 21:43:59,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495020325203252 [2023-08-03 21:43:59,142 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4871 transitions. [2023-08-03 21:43:59,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4871 transitions. [2023-08-03 21:43:59,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 21:43:59,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4871 transitions. [2023-08-03 21:43:59,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 202.95833333333334) internal successors, (4871), 24 states have internal predecessors, (4871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:43:59,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 410.0) internal successors, (10250), 25 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:43:59,159 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 410.0) internal successors, (10250), 25 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:43:59,160 INFO L175 Difference]: Start difference. First operand has 74 places, 56 transitions, 216 flow. Second operand 24 states and 4871 transitions. [2023-08-03 21:43:59,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 68 transitions, 430 flow [2023-08-03 21:43:59,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 68 transitions, 358 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-08-03 21:43:59,162 INFO L231 Difference]: Finished difference. Result has 104 places, 68 transitions, 336 flow [2023-08-03 21:43:59,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=336, PETRI_PLACES=104, PETRI_TRANSITIONS=68} [2023-08-03 21:43:59,163 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 49 predicate places. [2023-08-03 21:43:59,163 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 68 transitions, 336 flow [2023-08-03 21:43:59,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 201.16) internal successors, (5029), 25 states have internal predecessors, (5029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:43:59,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:43:59,165 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2023-08-03 21:43:59,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-03 21:43:59,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:43:59,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:43:59,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:43:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1192738450, now seen corresponding path program 4 times [2023-08-03 21:43:59,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:43:59,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152895063] [2023-08-03 21:43:59,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:43:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:43:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:44:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:44:00,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 21:44:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152895063] [2023-08-03 21:44:00,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152895063] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 21:44:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675621833] [2023-08-03 21:44:00,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-03 21:44:00,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:44:00,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:44:00,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 21:44:00,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-03 21:44:00,595 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-03 21:44:00,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 21:44:00,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-03 21:44:00,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 21:44:00,637 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:44:00,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 21:44:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:44:01,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675621833] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 21:44:01,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 21:44:01,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-08-03 21:44:01,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374184172] [2023-08-03 21:44:01,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 21:44:01,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-08-03 21:44:01,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 21:44:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-08-03 21:44:01,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-08-03 21:44:01,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-03 21:44:01,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 68 transitions, 336 flow. Second operand has 49 states, 49 states have (on average 201.08163265306123) internal successors, (9853), 49 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:44:01,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 21:44:01,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-03 21:44:01,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 21:44:01,733 INFO L124 PetriNetUnfolderBase]: 1126/2076 cut-off events. [2023-08-03 21:44:01,733 INFO L125 PetriNetUnfolderBase]: For 5240/5240 co-relation queries the response was YES. [2023-08-03 21:44:01,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4174 conditions, 2076 events. 1126/2076 cut-off events. For 5240/5240 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10410 event pairs, 1053 based on Foata normal form. 24/1789 useless extension candidates. Maximal degree in co-relation 3905. Up to 1829 conditions per place. [2023-08-03 21:44:01,741 INFO L140 encePairwiseOnDemand]: 407/410 looper letters, 36 selfloop transitions, 47 changer transitions 0/92 dead transitions. [2023-08-03 21:44:01,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 92 transitions, 694 flow [2023-08-03 21:44:01,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-08-03 21:44:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-08-03 21:44:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9707 transitions. [2023-08-03 21:44:01,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49324186991869917 [2023-08-03 21:44:01,755 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 9707 transitions. [2023-08-03 21:44:01,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 9707 transitions. [2023-08-03 21:44:01,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 21:44:01,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 9707 transitions. [2023-08-03 21:44:01,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 202.22916666666666) internal successors, (9707), 48 states have internal predecessors, (9707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:44:01,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 410.0) internal successors, (20090), 49 states have internal predecessors, (20090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:44:01,790 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 410.0) internal successors, (20090), 49 states have internal predecessors, (20090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:44:01,790 INFO L175 Difference]: Start difference. First operand has 104 places, 68 transitions, 336 flow. Second operand 48 states and 9707 transitions. [2023-08-03 21:44:01,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 92 transitions, 694 flow [2023-08-03 21:44:01,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 92 transitions, 550 flow, removed 61 selfloop flow, removed 11 redundant places. [2023-08-03 21:44:01,795 INFO L231 Difference]: Finished difference. Result has 164 places, 92 transitions, 576 flow [2023-08-03 21:44:01,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=576, PETRI_PLACES=164, PETRI_TRANSITIONS=92} [2023-08-03 21:44:01,795 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 109 predicate places. [2023-08-03 21:44:01,796 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 92 transitions, 576 flow [2023-08-03 21:44:01,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 201.08163265306123) internal successors, (9853), 49 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 21:44:01,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:44:01,798 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 2, 1, 1, 1, 1, 1] [2023-08-03 21:44:01,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-03 21:44:02,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:44:02,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:44:02,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:44:02,005 INFO L85 PathProgramCache]: Analyzing trace with hash 553162514, now seen corresponding path program 5 times [2023-08-03 21:44:02,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:44:02,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925713471] [2023-08-03 21:44:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:44:02,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:44:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:44:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 21:44:04,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 21:44:04,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925713471] [2023-08-03 21:44:04,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925713471] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 21:44:04,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652223276] [2023-08-03 21:44:04,666 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-03 21:44:04,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:44:04,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:44:04,667 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 21:44:04,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-08-03 21:54:34,616 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-03 21:54:34,640 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-03 21:54:35,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-03 21:54:35,841 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-08-03 21:54:35,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-08-03 21:54:35,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-03 21:54:35,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-08-03 21:54:35,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2023-08-03 21:54:35,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319707522] [2023-08-03 21:54:35,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-08-03 21:54:35,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-08-03 21:54:35,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 21:54:35,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-08-03 21:54:35,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-08-03 21:54:35,880 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-03 21:54:35,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-03 21:54:35,881 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-03 21:54:35,885 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-03 21:54:35,885 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1] [2023-08-03 21:54:35,886 INFO L307 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT,TIMEOUT (1/2) [2023-08-03 21:54:35,887 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-03 21:54:35,887 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 21:54:35,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 09:54:35 BasicIcfg [2023-08-03 21:54:35,889 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 21:54:35,889 INFO L158 Benchmark]: Toolchain (without parser) took 883664.46ms. Allocated memory was 400.6MB in the beginning and 759.2MB in the end (delta: 358.6MB). Free memory was 336.0MB in the beginning and 584.2MB in the end (delta: -248.1MB). Peak memory consumption was 110.8MB. Max. memory is 16.0GB. [2023-08-03 21:54:35,889 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 400.6MB. Free memory is still 348.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 21:54:35,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.76ms. Allocated memory was 400.6MB in the beginning and 631.2MB in the end (delta: 230.7MB). Free memory was 335.8MB in the beginning and 580.4MB in the end (delta: -244.7MB). Peak memory consumption was 31.0MB. Max. memory is 16.0GB. [2023-08-03 21:54:35,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 631.2MB. Free memory was 580.4MB in the beginning and 577.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-03 21:54:35,890 INFO L158 Benchmark]: Boogie Preprocessor took 25.70ms. Allocated memory is still 631.2MB. Free memory was 577.1MB in the beginning and 575.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 21:54:35,890 INFO L158 Benchmark]: RCFGBuilder took 515.05ms. Allocated memory is still 631.2MB. Free memory was 574.1MB in the beginning and 549.8MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-03 21:54:35,890 INFO L158 Benchmark]: TraceAbstraction took 882560.30ms. Allocated memory was 631.2MB in the beginning and 759.2MB in the end (delta: 127.9MB). Free memory was 548.9MB in the beginning and 584.2MB in the end (delta: -35.2MB). Peak memory consumption was 92.4MB. Max. memory is 16.0GB. [2023-08-03 21:54:35,891 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 400.6MB. Free memory is still 348.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 516.76ms. Allocated memory was 400.6MB in the beginning and 631.2MB in the end (delta: 230.7MB). Free memory was 335.8MB in the beginning and 580.4MB in the end (delta: -244.7MB). Peak memory consumption was 31.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 631.2MB. Free memory was 580.4MB in the beginning and 577.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.70ms. Allocated memory is still 631.2MB. Free memory was 577.1MB in the beginning and 575.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 515.05ms. Allocated memory is still 631.2MB. Free memory was 574.1MB in the beginning and 549.8MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 882560.30ms. Allocated memory was 631.2MB in the beginning and 759.2MB in the end (delta: 127.9MB). Free memory was 548.9MB in the beginning and 584.2MB in the end (delta: -35.2MB). Peak memory consumption was 92.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 209 PlacesBefore, 55 PlacesAfterwards, 227 TransitionsBefore, 66 TransitionsAfterwards, 15336 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 110 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 18 ConcurrentYvCompositions, 7 ChoiceCompositions, 181 TotalNumberOfCompositions, 24023 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13906, independent: 13575, independent conditional: 0, independent unconditional: 13575, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7829, independent: 7744, independent conditional: 0, independent unconditional: 7744, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13906, independent: 5831, independent conditional: 0, independent unconditional: 5831, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 7829, unknown conditional: 0, unknown unconditional: 7829] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 428, Positive conditional cache size: 0, Positive unconditional cache size: 428, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 315 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 882.4s, OverallIterations: 6, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 341 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 297 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1227 IncrementalHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1 mSDtfsCounter, 1227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=576occurred in iteration=5, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 238.2s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2961 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 28/2066 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